Rotoaira/Rotopounamu Introduction

The parameters of Latitude and Longitude that have been used in this research/study have been set by the earthquake swarm events of 30 May to 2nd June 2009. They are Northern Latitude -39.015 (39° 0' 54" S), Southern Latitude -39.06 (-39° 3' 36" S), Western Latitude 175.66 (175° 39' 35.9994" E), Eastern Latitude 175.79 (175° 47' 23.9994" E).
Whilst there were earthquakes outside this study area during the same periods of time, I have kept to the perameters which cover the Western and Upper reaches of Lake Rotoaira, across the Ponanga Saddle between Lake Rotopounamu and Mt Tihia, to Mt Pihanga in the east for clarity.
The maps below show the search areas as a darker shade.







Geography.
The Tongariro Volcanic Centre occupies the southern 65km of the Taupo Volcanic Zone and comprises three main volcanic complexes. In the north, the large cones of Pihanga (1,304m), Kakaramea (1,280m) and Tihia (1,147m) and smaller cones Puketopo (930m) and Pukemohono (795m) within what is known as the Rotopounamu Graben, all are extinct and are aligned NW-SE for about 10km.
The Rotopounamu Graben was formed approx. 2000 years ago after major eruptive acticity on the Tongariro Massif ceased. There are two un-named fault lines of uncertain age that run NNE-SSW on the east and west sides of Lake Rotopounamu. The lake may be consequent on ponding of drainage and so post date the faulting or it may have been an explosion crater.
Lake Rotopounamu is approx 1m2 in area and with a maximum depth of 7.5m.
South of Lake Rotopounamu are two un-named cones known as Onepoto Craters, a minimum age of 20,000 years is suggested for all cones and domes in the Rotopounamu Graben area.

Deformation of the southern part of the Taupo Volcanic Zone in repect to the Kaimanawa Range to the east is estimated at an average rate of 2.1metres per thousand years.
Recent scientific work indicates that the earth's crust below the Taupo Volcanic Zone may be as little as 16 kilometres thick. A film of Magma 50 kilometres (30 mi) wide and 160 kilometres (100 mi) long lies 10 kilometres under the surface.
Local deformation within the Rotoaira/Rotopounamu Graben is known in historic times. Hochstetter’s 1864 sketch map of Lake Rotoaira shows two peninsulas extending into the lake, one at the southestern end and another at the northwestern end connecting with Motuopuhi Island.
In 1933 Grange and Williamson published a map of the area and the southeastern peninsula had disappeared but the northwestern peninsula persisted.
Since 1973 the end of the northwestern peninsula has become separated to form Motuopuhi Island. The area of Lake Rotoaira is therefore gradually extending as this part of the graben becomes further depressed.

Rotoaira/Rotoponamu Quake Chart

The bar chart below plots by year, all the earthquakes on the NZ Earthquake Catalogue held by Geonet for the years 1943 through to 2009, in the study/search area marked in the maps.
I acknowledge the New Zealand GeoNet project and its sponsors EQC, GNS Science and LINZ, for providing data used in this study.


graph/plots by highace.

Lake Rotoaira Swarm Nov 21st 2009

Continuation of swarm of 20th November, similar pattern with two micro quakes at the base of Mt. Tihia and two very minor-quakes up higher on the south western slopes.



REF, LAT, LONG, TIME, DEPTH, MAG

3187077, -39.0194, 175.7065, 2009/11/21 09:48:49.8, 5, 1.878
3187091, -39.0186, 175.701, 2009/11/21 10:22:48.9, 5, 1.547
3187166, -39.009, 175.7028, 2009/11/21 13:26:33.0, 5, 2.793
3187167, -39.0033, 175.6885, 2009/11/21 13:29:10.3, 2, 2.465


data by geonet. map by google maps. plots by highace using GPS Visualizer

Lake Rotoaira Swarm Nov 20th 2009

Small 7 event swarm with 2 very-minor events an hour apart at Sat 1:415am and 2:44am NZDT in the southern foothills of Mt. Tihia, then a series of 5 events between 9:18 am and 10:01am more to the west south west.


REF, LAT, LONG, TIME, DEPTH, MAG

3186643, -39.01523, 175.72263, 2009/11/20 12:41:35.9, 5, 2.057
3186662, -39.00906, 175.71051, 2009/11/20 13:44:37.7, 5, 2.329
3186784, -39.015, 175.69855, 2009/11/20 20:18:55.2, 5, 1.84
3186787, -39.01305, 175.68974, 2009/11/20 20:27:27.0, 5, 1.544
3186795, -39.0123, 175.69469, 2009/11/20 20:53:11.8, 5, 1.582
3186796, -39.02209, 175.70459, 2009/11/20 20:56:23.9, 5, 1.88
3186797, -39.00916, 175.68362, 2009/11/20 21:01:04.9, 6, 1.586


data by geonet. map by google maps. plots by highace using GPS Visualizer

Lake Rotoaira Area Sept 21st 2009

Small micro swarm over a period of 5 hours September 21st 2009 to the north west of Lake Rotoaira


REF, LAT, LONG, TIME, DEPTH, MAG
3157261, -39.02364, 175.67839, 2009/09/21 14:16:43.4, 8, 1.576
3157263, -39.01843, 175.66907, 2009/09/21 14:20:16.8, 9, 1.546
3157330, -39.02441, 175.67648, 2009/09/21 18:00:44.5, 7, 1.366
3157361, -39.0285, 175.67654, 2009/09/21 19:25:07.5, 7, 1.513
3157363, -39.02919, 175.67766, 2009/09/21 19:31:41.3, 13, 1.755
3157366, -39.02467, 175.65073, 2009/09/21 19:43:25.5, 4, 1.317

data by geonet. map by google maps. plots by highace using GPS Visualizer

Lake Rotoaira Swarm May 30th-June 2nd

Swarm on the shores of Lake Rotoaira, which is between Lake Taupo and Mount Tongariro. Started on the 30th May and most of the action 31st May UTC but still going on 1st June UTC.
3 of the events have been felt in the Turangi area which is the nearest population centre (pop. 3,500), the largest the 3.782 ML

The map below shows the same events split into date by magnitude (see key on map)


The map below shows the same events split into date by colour (see key on map)


The Volcano Alerts are normal, Ruapehu still at Alert Level 1 which is standard for an active volcano.
List of 59 events in this swarm;
REF, LAT, LONG, TIME, DEPTH, MAG, FELT
3100075, -39.0431, 175.711, 2009/05/30 15:31:37.6, 1.8, 2.268
3100080, -39.0448, 175.714, 2009/05/30 15:43:08.4, 5.6, 1.894
3100227, -39.0353, 175.7127, 2009/05/30 22:03:54.4, 9.9, 1.935
3100238, -39.0371, 175.7172, 2009/05/30 22:27:33.4, 5.2, 2.546
3100244, -39.0327, 175.7252, 2009/05/30 22:42:10.0, 3.4, 2.442
3100365, -39.0426, 175.7242, 2009/05/31 04:13:52.9, 7.7, 2.11
3100376, -39.0419, 175.7183, 2009/05/31 04:39:16.2, 5.5, 2.917
3100380, -39.0406, 175.7192, 2009/05/31 04:52:01.7, 6.2, 2.666
3100497, -39.0489, 175.728, 2009/05/31 09:56:00.9, 3.5, 1.711
3100501, -39.0429, 175.7239, 2009/05/31 10:04:46.2, 8.3, 1.899
3100514, -39.0516, 175.7355, 2009/05/31 10:33:13.1, 0.5, 3.064
3100518, -39.0461, 175.7405, 2009/05/31 10:39:19.0, 1.7, 2.208
3100521, -39.0293, 175.6915, 2009/05/31 10:46:00.4, 0.0, 2.808
3100529, -39.0364, 175.7302, 2009/05/31 11:02:39.3, 4.5, 3.264
3100531, -39.0335, 175.6883, 2009/05/31 11:05:32.6, 1.8, 2.559
3100533, -39.0424, 175.7376, 2009/05/31 11:08:45.3, 4.5, 3.172, F
3100543, -39.0461, 175.736, 2009/05/31 11:20:18.4, 3.9, 2.171
3100544, -39.0467, 175.7325, 2009/05/31 11:23:39.6, 7.0, 1.893
3100559, -39.0376, 175.7171, 2009/05/31 11:54:09.7, 3.8, 3.258, F
3100572, -39.0484, 175.7257, 2009/05/31 12:26:11.8, 2.4, 1.897
3100617, -39.0427, 175.7182, 2009/05/31 14:26:58.2, 6.0, 2.351
3100619, -39.0394, 175.7278, 2009/05/31 14:31:04.4, 4.6, 3.818
3100627, -39.0444, 175.7223, 2009/05/31 14:31:04.5, 6.2, 3.782, F
3100622, -39.0368, 175.6844, 2009/05/31 14:37:51.0, 5.5, 3.235
3100628, -39.037, 175.7401, 2009/05/31 14:46:43.4, 6.1, 2.049
3100629, -39.0372, 175.7282, 2009/05/31 14:47:58.9, 7.4, 2.139
3100630, -39.0486, 175.7315, 2009/05/31 14:50:14.2, 6.9, 1.725
3100632, -39.017, 175.719, 2009/05/31 14:54:56.3, 11.3, 2.849
3100635, -39.0571, 175.7479, 2009/05/31 15:00:36.2, 2.3, 2.745
3100636, -39.0393, 175.7331, 2009/05/31 15:02:19.5, 3.3, 2.422
3100637, -39.0398, 175.7078, 2009/05/31 15:03:23.1, 6.2, 2.09
3100640, -39.0392, 175.7304, 2009/05/31 15:09:41.5, 4.6, 1.961
3100642, -39.0477, 175.7112, 2009/05/31 15:12:38.0, 4.3, 2.247
3100643, -39.0539, 175.7834, 2009/05/31 15:13:42.9, 12.8, 2.062
3100645, -39.0406, 175.7374, 2009/05/31 15:16:48.4, 6.0, 3.454
3100646, -38.9791, 175.7699, 2009/05/31 15:18:55.7, 0.0, 2.167
3100651, -39.0455, 175.7158, 2009/05/31 15:32:00.7, 6.7, 2.284
3100654, -39.0495, 175.7159, 2009/05/31 15:38:30.9, 3.6, 2.647
3100660, -39.0432, 175.7264, 2009/05/31 15:50:46.1, 5.8, 2.127
3100697, -39.0277, 175.7005, 2009/05/31 17:14:28.0, 7.8, 2.145
3100698, -39.0368, 175.727, 2009/05/31 17:16:49.1, 2.0, 2.839
3100907, -39.044, 175.7272, 2009/06/01 02:19:58.5, 7.4, 1.952
3100912, -39.0448, 175.7254, 2009/06/01 02:34:43.7, 4.3, 2.246
3100915, -39.0595, 175.7087, 2009/06/01 02:39:00.9, 5.0, 2.736
3100917, -39.0496, 175.724, 2009/06/01 02:42:17.7, 5.0, 2.344
3100919, -39.0145, 175.7314, 2009/06/01 02:47:16.6, 8.3, 2.033
3100923, -39.037, 175.7241, 2009/06/01 02:55:55.3, 2.0, 2.388
3100927, -39.0449, 175.7217, 2009/06/01 03:07:26.7, 6.4, 1.862
3100937, -39.02, 175.722, 2009/06/01 03:29:09.8, 10.5, 1.864
3100939, -39.04, 175.7251, 2009/06/01 03:31:54.9, 2.9, 2.611
3100946, -39.0413, 175.7179, 2009/06/01 03:44:47.5, 8.0, 1.854
3100952, -39.0434, 175.7129, 2009/06/01 03:58:14.2, 7.9, 1.92
3100957, -39.0585, 175.7264, 2009/06/01 04:12:45.5, 6.4, 1.874
3101065, -39.0398, 175.7185, 2009/06/01 08:42:10.7, 6.7, 1.81
3101067, -39.0438, 175.7152, 2009/06/01 08:44:47.9, 3.9, 1.672
3101077, -39.0355, 175.7063, 2009/06/01 09:08:35.9, 9.4, 1.859
3101138, -38.574, 175.7121, 2009/06/01 11:34:46.3, 178.7, 3.753
3101155, -39.015, 175.6649, 2009/06/01 12:19:08.1, 2.2, 1.821
3101248, -39.0386, 175.7208, 2009/06/01 16:01:21.6, 5.0, 1.69


data by geonet. map by google maps. plots by highace using GPS Visualizer

Lake Rotoaira Area Jan-May 2009

In the period January 1st through to 29th May there were 40 earthquake events in the Lake Rotoaira/Rotopounamu area, with two notable small swarms on the 7th and 15th May, prior to the events of the 30th May/1stJune.



List of 40 events Jan 1 to May 29th 2009;
REF, LAT, LONG, TIME, DEPTH, MAG, FELT
3025704, -39.0337, 175.7301, 2009/01/05 05:13:06.2, 5, 1.552
3033503, -39.0576, 175.6799, 2009/01/21 13:07:09.0, 6, 1.756
3033666, -39.0537, 175.6765, 2009/01/21 21:04:13.0, 5, 1.458
3035641, -39.0161, 175.7071, 2009/01/25 13:55:07.7, 5, 1.141
3035577, -39.0167, 175.7015, 2009/01/25 15:00:34.4, 5, 1.211
3035595, -39.0188, 175.7118, 2009/01/25 15:58:10.6, 5, 1.261
3037020, -39.0558, 175.6789, 2009/01/28 09:17:51.1, 6, 1.263
3039998, -39.021, 175.7161, 2009/02/03 07:30:43.2, 5, 1.117
3047910, -39.0289, 175.6901, 2009/02/19 14:18:00.0, 5, 1.394
3052748, -39.0396, 175.7107, 2009/03/01 09:47:42.5, 5, 1.305
3065715, -39.0229, 175.7173, 2009/03/26 14:07:07.1, 9, 1.205
3065720, -39.0334, 175.7315, 2009/03/26 14:22:35.4, 2, 1.182
3065763, -39.0217, 175.7182, 2009/03/26 16:30:49.8, 8, 1.465
3065866, -39.0165, 175.6827, 2009/03/26 20:41:22.1, 5, 1.047
3069562, -39.0467, 175.6867, 2009/04/03 01:58:52.1, 6, 1.704
3070080, -39.0278, 175.6833, 2009/04/04 04:40:14.8, 5, 1.432
3070088, -39.0301, 175.6905, 2009/04/04 05:05:29.8, 5, 1.217
3070095, -39.0265, 175.6882, 2009/04/04 05:23:45.2, 5, 1.474
3071044, -39.0384, 175.7225, 2009/04/04 05:51:32.2, 5, 1.287
3070771, -39.0191, 175.7296, 2009/04/05 14:54:39.6, 7, 1.438
3076983, -39.042, 175.6805, 2009/04/17 12:17:42.6, 5, 1.33
3077469, -39.0157, 175.6738, 2009/04/18 09:54:16.3, 5, 1.045
3086002, -39.0417, 175.7278, 2009/05/04 17:08:15.2, 5, 1.709

A small swarm occurred on 7th May at the north end of Lake Rotopounamu, 6 events over a period of 23 minutes
3087306, -39.0264, 175.7355, 2009/05/07 06:00:44.9, 2, 2.813
3094824, -39.0243, 175.7333, 2009/05/07 06:01:56.8, 2, 1.683
3087309, -39.0225, 175.7461, 2009/05/07 06:04:44.0, 5, 1.825
3087312, -39.0226, 175.7445, 2009/05/07 06:11:27.7, 5, 2.173
3087313, -39.0226, 175.7417, 2009/05/07 06:15:23.4, 2, 2.304
3087318, -39.0265, 175.7392, 2009/05/07 06:23:02.6, 2, 1.65


A small swarm occurred on the 15th May, starting with 4 initial micro quakes within a period of 6 minutes, starting from the south west corner of Motuopuhi Island and looping south and eastwards towards the south western flanks of Onepoto Craters, with 3 further events 4 hours later centred around where the Onepoto stream enters Lake Rotoaira.
3091788, -39.0343, 175.7066, 2009/05/15 16:16:54.4, 5, 1.435
3091789, -39.0375, 175.7071, 2009/05/15 16:18:19.5, 8, 1.739
3097688, -39.0418, 175.7112, 2009/05/15 16:22:36.5, 5, 1.498
3091791, -39.0449, 175.7242, 2009/05/15 16:23:05.5, 5, 1.883
3091881, -39.047, 175.7206, 2009/05/15 20:05:27.7, 7, 1.868
3091886, -39.043, 175.7175, 2009/05/15 20:15:37.6, 7, 1.807
3091906, -39.0419, 175.7243, 2009/05/15 21:11:06.6, 6, 1.842


3093372, -39.0392, 175.7184, 2009/05/18 09:46:44.1, 5, 1.488
3093374, -39.0426, 175.719, 2009/05/18 09:53:55.2, 5, 1.243
3094956, -39.0308, 175.7178, 2009/05/21 05:44:25.8, 8, 2.398
3094962, -39.0249, 175.6997, 2009/05/21 05:51:23.1, 8, 1.976

data by geonet. map by google maps. plots by highace using GPS Visualizer

2008 Lake Rotoaira quakes

In 2008 there were only 18 earthquake events in the Lake Rotoaira/Rotopounamu area, with just one swarm of 5 micro events. One quake of note, because of it’s depth and magnitude was the 3.793 ML at 116 km deep on the 19th March. The epic-center was located below the south west corner of Mt Pihanga (shown on map as a grey orb)



REF, LAT, LONG, TIME, DEPTH, MAG
2855717, -39.0594, 175.7424, 2008/01/25 09:26:22.1, 11, 1.648
2858224, -39.0524, 175.7687, 2008/01/30 18:50:12.3, 3, 1.837
2867955, -39.0446, 175.7893, 2008/02/19 22:50:23.9, 8, 2.223
2881694, -39.06, 175.7303, 2008/03/18 20:11:11.8, 5, 2.385
2881696, -39.039, 175.7137, 2008/03/18 20:15:20.0, 9, 1.238
2881772, -39.059, 175.7511, 2008/03/19 00:27:19.0, 116, 3.793
2910975, -39.027, 175.6918, 2008/05/20 03:55:03.7, 5, 1.587
2935261, -39.0169, 175.7499, 2008/07/08 18:37:48.7, 6, 2.134
2952936, -39.0218, 175.7474, 2008/08/13 14:58:39.0, 5, 1.324
2953770, -39.0179, 175.7509, 2008/08/15 03:03:20.5, 8, 1.933

A short 16hr 5 event swarm on the 22nd August, located between the Wairehu Canal and the Mangatipua Stream in the low laying swampland, north east corner of Lake Rotoaira
2957102, -39.0387, 175.6697, 2008/08/22 01:41:48.1, 5, 1.462
2957115, -39.0385, 175.684, 2008/08/22 02:10:32.4, 5, 2.398
2957255, -39.0421, 175.6828, 2008/08/22 07:12:13.0, 5, 1.914
2957361, -39.0355, 175.688, 2008/08/22 11:56:10.9, 5, 2.011
2962597, -39.0394, 175.6776, 2008/08/22 17:50:10.5, 5, 1.241



2975137, -39.0154, 175.6876, 2008/09/27 02:41:52.9, 7, 1.623
2979358, -39.0325, 175.7084, 2008/10/05 12:54:11.6, 5, 1.418
3012500, -39.0308, 175.7215, 2008/12/09 18:00:44.9, 5, 1.164

data by geonet. map by google maps. plots by highace using GPS Visualizer

2007 Rotoaira/Rotopounamu quakes

2007 was a another quiet year in the Rotoaira/Rotopounamu area with only 8 earthquakes and no swarms. The deepest quake was the 2.682 ML event of April 1st at 95km deep. (shown on map as a magenta coloured orb)



REF, LAT, LONG, TIME, DEPTH, MAG
2712952, -39.0155, 175.7212, 2007/03/20 14:36:55.1, 5, 1.125
2720345, -39.0256, 175.769, 2007/04/05 06:40:34.5, 5, 1.515
2798743, -39.0342, 175.7742, 2007/09/24 23:27:10.8, 8, 1.517
2842123, -39.0506, 175.7317, 2007/12/26 10:33:22.9, 6, 1.525
2717090, -39.0345, 175.7145, 2007/03/29 03:38:12.4, 9, 1.795
2712064, -39.0188, 175.7564, 2007/03/18 18:59:49.2, 5, 2.035
2718780, -39.0182, 175.7755, 2007/04/01 19:18:02.4, 95, 2.682
2827052, -39.022, 175.7485, 2007/11/24 21:31:36.1, 12, 3.223

data by geonet. map by google maps. plots by highace using GPS Visualizer

2006 Rotoaira/Rotopounamu quakes

2006 was a very quiet year in the Rotoaira/Rotopounamu area with only 8 earthquakes and no swarms. August was the busiest month with 4 of the 8 quakes for the year. The deepest quake was the 3.073 ML event of September 11th at 95km deep under Lake Rotoaira just south west of Onepoto Craters (shown on map as a grey coloured orb)



REF, LAT, LONG, TIME, DEPTH, MAG
2744966, -39.0211, 175.7502, 2006/01/16 15:42:41.3, 5, 1.318
2553473, -39.0205, 175.7296, 2006/04/14 06:06:12.4, 5, 1.076
2867963, -39.016, 175.7142, 2006/08/10 22:17:51.3, 5, 1.477
2608800, -39.0202, 175.7436, 2006/08/11 00:01:24.7, 5, 1.412
2874158, -39.0169, 175.7489, 2006/08/14 13:26:17.4, 5, 1.359
2610306, -39.0176, 175.7645, 2006/08/14 13:26:19.6, 5, 2.086
2623523, -39.0529, 175.7196, 2006/09/11 15:28:55.0, 95, 3.073
2672663, -39.0454, 175.7251, 2006/12/23 07:04:28.7, 9, 2.083

data by geonet. map by google maps. plots by highace using GPS Visualizer

2005 Rotoaira/Rotopounamu quakes

In 2005 there were 65 quakes in the Rotoaira/Rotopounamu area, with one large swarm of 41 events on 14th March and one small swarm of 7 events on September 25th. There were 2 deep quakes in 2005, both located between the Wairehu Canal and Otukou Rd, north east of Lake Rotoaira, a 3.001ML on October 21st , 133km deep (marked on the map as a magenta coloured orb ) and a 3.046ML on 24th November, 120km deep (marked on the map as a purple coloured orb)



REF, LAT, LONG, TIME, DEPTH, MAG
2354652, -39.0329, 175.76, 2005/01/21 21:06:18.9, 5, 1.406
2361813, -39.0314, 175.7743, 2005/02/07 10:14:24.9, 5, 1.102

A swarm on 14th March with events of magnitude 1.058 to 3.035ML consentrated in the north east corner of Lake Rotoaira and in the Ponanga Saddle between Lake Pounamu and Mt Tihia.
The largest event, about one third into the swarm, a 3.035 ML event at 4:52:39.3 UTC, just 5km deep, was centred under the northern edge of Onepoto Craters and was felt in Turangi. (shown on map as a lime coloured square)
REF, LAT, LONG, TIME, DEPTH, MAG
2597560, -39.027, 175.7223, 2005/03/14 03:04:41.2, 6, 1.766
2376663, -39.0196, 175.7202, 2005/03/14 03:04:55.5, 8, 2.065
2376664, -39.0322, 175.7088, 2005/03/14 03:06:04.8, 5, 1.759
2376665, -39.0251, 175.7221, 2005/03/14 03:10:25.8, 5, 1.703
2376666, -39.024, 175.7172, 2005/03/14 03:13:39.3, 5, 1.802
2376667, -39.0202, 175.7205, 2005/03/14 03:17:24.6, 8, 2.165
2597549, -39.0206, 175.7196, 2005/03/14 03:17:55.6, 8, 1.97
2376669, -39.0209, 175.7256, 2005/03/14 03:23:05.5, 9, 2.286
2376670, -39.0157, 175.7199, 2005/03/14 03:25:59.1, 10, 2.421
2597610, -39.0251, 175.7358, 2005/03/14 03:27:55.0, 5, 1.411
2376672, -39.0222, 175.7258, 2005/03/14 03:28:39.3, 7, 1.789
2376673, -39.0276, 175.7239, 2005/03/14 03:30:18.5, 5, 1.758
2376675, -39.0208, 175.722, 2005/03/14 03:34:46.1, 7, 2.175
2376686, -39.0258, 175.7168, 2005/03/14 04:06:49.8, 5, 1.575
2376700, -39.0319, 175.7311, 2005/03/14 04:52:39.3, 5, 3.035
2376705, -39.0235, 175.7244, 2005/03/14 05:05:15.5, 5, 1.538
2600247, -39.0197, 175.6609, 2005/03/14 05:05:45.0, 5, 1.171
2376709, -39.0211, 175.7327, 2005/03/14 05:17:29.3, 5, 2.803
2600271, -39.0237, 175.7141, 2005/03/14 05:18:02.4, 5, 2.005
2600399, -39.0208, 175.7267, 2005/03/14 05:18:10.1, 5, 2.303
2600742, -39.0239, 175.7347, 2005/03/14 05:18:48.3, 5, 1.466
2600403, -39.0246, 175.721, 2005/03/14 05:19:13.3, 5, 1.362
2600414, -39.0193, 175.7305, 2005/03/14 05:19:49.4, 5, 1.236
2376710, -39.0238, 175.7212, 2005/03/14 05:21:18.6, 5, 1.596
2376712, -39.0197, 175.7262, 2005/03/14 05:24:20.7, 6, 1.393
2376713, -39.0239, 175.7194, 2005/03/14 05:26:58.3, 6, 1.838
2376715, -39.0198, 175.724, 2005/03/14 05:30:47.8, 7, 1.289
2600879, -39.0267, 175.702, 2005/03/14 05:31:11.7, 5, 1.324
2600883, -39.0279, 175.7221, 2005/03/14 05:34:32.6, 5, 1.058
2376716, -39.0274, 175.7211, 2005/03/14 05:34:35.0, 5, 1.646
2376720, -39.0216, 175.7312, 2005/03/14 05:49:43.2, 8, 2.414
2600887, -39.0158, 175.7206, 2005/03/14 05:58:50.3, 8, 1.541
2376724, -39.0218, 175.7171, 2005/03/14 06:00:16.6, 7, 1.802
2376737, -39.0179, 175.7157, 2005/03/14 06:45:31.4, 7, 1.546
2600908, -39.0197, 175.7232, 2005/03/14 07:37:56.0, 7, 1.588
2376757, -39.0232, 175.7315, 2005/03/14 07:45:21.1, 5, 1.269
2376801, -39.0205, 175.7207, 2005/03/14 10:47:45.8, 7, 1.665
2376819, -39.0186, 175.724, 2005/03/14 11:42:25.4, 5, 2.235
2376852, -39.0273, 175.7187, 2005/03/14 13:22:18.1, 5, 1.365
2376898, -39.0154, 175.7262, 2005/03/14 16:29:09.2, 8, 1.341
2376945, -39.0252, 175.7108, 2005/03/14 19:30:22.6, 5, 1.166


2377063, -39.0189, 175.671, 2005/03/15 01:57:06.5, 5, 1.331
2594895, -39.0281, 175.7289, 2005/03/16 00:07:08.0, 5, 1.262
2377430, -39.0251, 175.7253, 2005/03/16 00:07:39.8, 7, 2.353
2377639, -39.023, 175.7177, 2005/03/16 11:37:20.0, 6, 1.219
2378175, -39.0287, 175.7124, 2005/03/17 12:22:38.1, 5, 1.048
2378402, -39.0153, 175.721, 2005/03/18 09:42:03.6, 8, 1.706
2386948, -39.0187, 175.7058, 2005/04/06 17:10:26.5, 5, 1.183
2391607, -39.023, 175.7186, 2005/04/17 10:58:07.2, 6, 1.284
2682786, -39.0277, 175.7296, 2005/08/27 17:20:20.6, 8, 1.125
2452666, -39.0209, 175.717, 2005/08/28 23:50:26.3, 5, 1.585
2457024, -39.0534, 175.6603, 2005/09/08 04:45:33.9, 5, 1.379
2457066, -39.0598, 175.6761, 2005/09/08 07:37:10.6, 5, 1.187

A small swarm of September 25th, of magnitudes between 1.245 and 2.13ML was located under Lake Rotoaira mainly between Motuopuhi Island and the western shore cliffs, with two events further south east and south of the rest.
REF, LAT, LONG, TIME, DEPTH, MAG
2464422, -39.0317, 175.7087, 2005/09/25 08:44:10.8, 7, 1.964
2464459, -39.0366, 175.7147, 2005/09/25 10:33:53.5, 5, 1.549
2464514, -39.0302, 175.7148, 2005/09/25 13:52:37.8, 8, 2.13
2693421, -39.0529, 175.7122, 2005/09/25 13:53:31.7, 12, 1.245
2464515, -39.0331, 175.7116, 2005/09/25 13:55:13.7, 7, 1.96
2693426, -39.0341, 175.7159, 2005/09/25 13:55:26.4, 5, 1.823
2464609, -39.0362, 175.7028, 2005/09/25 18:55:17.4, 8, 1.364


The year finished with the following events;
2466117, -39.0168, 175.7604, 2005/09/29 09:52:15.0, 5, 1.576
2475697, -39.0344, 175.6651, 2005/10/21 02:22:31.7, 133, 3.001
2490907, -39.0469, 175.6829, 2005/11/24 03:21:25.0, 120, 3.046

data by geonet. map by google maps. plots by highace using GPS Visualizer

2004 Rotoaira/Rotopounamu quakes

2004 was a very quiet year, although 22 quakes occurred in the area, the largest was only 1.875ML.



REF, LAT, LONG, TIME, DEPTH, MAG
2180000, -39.0167, 175.7576, 2004/02/01 21:56:34.0, 5, 1.11
2189978, -39.0182, 175.7492, 2004/02/23 22:16:54.6, 5, 1.363
2205811, -39.0329, 175.7043, 2004/03/28 13:12:24.0, 8, 1.551
2215182, -39.0545, 175.7329, 2004/04/16 02:46:14.0, 5, 1.203
2230767, -39.0166, 175.7382, 2004/05/15 23:17:01.5, 5, 1.149

May 24th a small swarm with 5 micro quakes lasting 7 minutes scattered in the area between Onepoto Craters, Motuopuhi Island and Te Ponanga Saddle Rd
2235861, -39.0303, 175.7217, 2004/05/24 02:46:02.6, 7, 1.311
2397114, -39.0355, 175.714, 2004/05/24 02:46:32.2, 5, 1.019
2235864, -39.0377, 175.7282, 2004/05/24 02:51:10.3, 7, 1.226
2397121, -39.0206, 175.7212, 2004/05/24 02:52:38.1, 5, 0.938
2235865, -39.0271, 175.719, 2004/05/24 02:53:16.2, 8, 1.58


further earthquakes in 2004;
2254919, -39.0499, 175.7859, 2004/06/28 09:09:26.1, 5, 1.447
2255128, -39.045, 175.6665, 2004/06/28 21:39:43.7, 6, 1.157
2265074, -39.0475, 175.7761, 2004/07/15 04:46:38.1, 5, 1.875
2266446, -39.0579, 175.7882, 2004/07/18 10:58:48.1, 5, 1.749
2267510, -39.0464, 175.7883, 2004/07/20 10:10:49.4, 5, 1.505
2270121, -39.0448, 175.7662, 2004/07/25 20:24:48.3, 5, 1.128
2285659, -39.0155, 175.698, 2004/08/25 14:39:56.4, 5, 1.431
2456575, -39.0191, 175.6997, 2004/08/25 14:42:41.2, 5, 0.942
2291073, -39.0432, 175.7718, 2004/09/07 18:14:40.2, 5, 1.079
2313897, -39.0242, 175.7213, 2004/10/28 11:21:46.0, 5, 1.026
2323311, -39.0382, 175.715, 2004/11/17 06:11:37.4, 5, 1.132
2325340, -39.0217, 175.7469, 2004/11/21 04:53:06.1, 5, 1.649

data by geonet. map by google maps. plots by highace using GPS Visualizer

2003 Rotoaira/Rotopounamu quakes

2003 was an active year with 185 quakes in the Rotoaira/Rotopounamu area, one large swarm occurred between 21st – 28th February and two smaller swarms, one on the 11th April and another on 19th July.



REF, LAT, LONG, TIME, DEPTH, MAG
2010719, -39.0478, 175.6922, 2003/01/01 22:52:25.4, 5, 1.756
2014690, -39.0529, 175.7056, 2003/01/15 13:00:22.9, 5, 1.298
2016662, -39.0252, 175.6948, 2003/01/20 04:17:16.0, 5, 1.247

The February 21 -28th swarm had 126 events, and was wide spread in a WSW-ENE direction, across the north end of Lake Rotoaira through Lake Rotopounamu to Mt Pihanga..
Although none of the events were reported as felt, there were 4 events above 3 magnitude, all centred in the south east corner of Lake Rotopounamu just north east of Onepoto Craters and west of Pihanga on the un-named fault line running
SSW-NNE. (these are marked on the map as grey coloured orbs)

REF, LAT, LONG, TIME, DEPTH, MAG
2085211, -39.0496, 175.6863, 2003/02/21 20:03:13.7, 7, 1.158
2028953, -39.032, 175.7564, 2003/02/21 20:03:53.7, 5, 2.428
2085214, -39.04, 175.7086, 2003/02/21 20:04:49.6, 5, 0.905
2085213, -39.0364, 175.6985, 2003/02/21 20:11:16.0, 5, 1.286
2028958, -39.0233, 175.724, 2003/02/21 20:11:40.5, 7, 1.744
2085616, -39.0273, 175.7074, 2003/02/21 20:26:24.9, 5, 0.633
2028965, -39.0262, 175.7448, 2003/02/21 20:26:25.7, 5, 3.083
2028967, -39.0448, 175.6975, 2003/02/21 20:31:22.5, 6, 1.267
2028968, -39.0251, 175.7157, 2003/02/21 20:33:59.9, 5, 1.812
2028969, -39.0321, 175.6972, 2003/02/21 20:36:28.9, 7, 1.565
2085225, -39.0337, 175.7168, 2003/02/21 20:37:09.4, 5, 1.259
2028978, -39.0404, 175.6928, 2003/02/21 20:59:35.3, 5, 0.986
2028979, -39.0365, 175.7044, 2003/02/21 21:00:54.4, 5, 0.983
2028983, -39.0474, 175.6792, 2003/02/21 21:12:51.4, 7, 0.918
2085623, -39.0313, 175.7299, 2003/02/21 21:13:08.9, 5, 1.156
2028985, -39.0299, 175.7402, 2003/02/21 21:15:07.4, 7, 2.783
2085227, -39.0253, 175.7071, 2003/02/21 21:16:36.5, 5, 2.077
2085230, -39.0231, 175.7466, 2003/02/21 21:21:38.4, 5, 1.277
2028987, -39.0269, 175.7198, 2003/02/21 21:22:21.8, 8, 2.209
2085231, -39.0329, 175.7098, 2003/02/21 21:23:14.3, 5, 1.15
2028990, -39.0323, 175.6917, 2003/02/21 21:30:41.3, 5, 1.54
2028991, -39.0286, 175.7425, 2003/02/21 21:32:29.7, 7, 2.774
2028994, -39.0312, 175.7055, 2003/02/21 21:40:29.5, 5, 0.596
2029000, -39.0301, 175.7424, 2003/02/21 21:46:59.6, 9, 2.322
2085244, -39.0264, 175.7016, 2003/02/21 21:48:09.4, 9, 1.63
2029004, -39.0281, 175.7287, 2003/02/21 21:52:43.5, 5, 2.881
2085250, -39.0186, 175.7101, 2003/02/21 21:54:07.5, 12, 2.153
2029006, -39.0566, 175.6658, 2003/02/21 21:58:05.7, 12, 1.151
2029008, -39.0353, 175.7089, 2003/02/21 22:01:13.3, 5, 1.06
2085271, -39.0469, 175.6893, 2003/02/21 22:14:41.6, 5, 1.668
2029014, -39.0326, 175.7439, 2003/02/21 22:15:18.1, 5, 3.156
2085272, -39.0284, 175.7208, 2003/02/21 22:16:29.1, 5, 1.798
2085274, -39.0336, 175.6998, 2003/02/21 22:22:50.7, 5, 1.003
2029018, -39.0256, 175.7133, 2003/02/21 22:25:34.5, 7, 1.802
2029019, -39.0373, 175.7118, 2003/02/21 22:27:48.9, 5, 1.428
2085514, -39.0378, 175.7015, 2003/02/21 22:31:12.5, 5, 0.614
2029020, -39.0322, 175.7232, 2003/02/21 22:31:45.6, 5, 1.604
2029023, -39.0367, 175.7086, 2003/02/21 22:40:07.5, 5, 1.149
2029024, -39.0491, 175.6944, 2003/02/21 22:44:06.5, 5, 0.742
2029029, -39.0283, 175.7072, 2003/02/21 22:55:15.1, 7, 2.124
2085518, -39.0351, 175.6998, 2003/02/21 22:55:41.2, 5, 1.427
2029033, -39.0347, 175.7156, 2003/02/21 23:03:32.8, 5, 0.995
2029034, -39.0424, 175.6971, 2003/02/21 23:04:32.9, 5, 0.876
2029037, -39.0353, 175.702, 2003/02/21 23:08:45.9, 5, 1.024
2029039, -39.03, 175.7092, 2003/02/21 23:13:15.7, 8, 1.711
2085524, -39.048, 175.6887, 2003/02/21 23:15:04.7, 5, 1.446
2029040, -39.0255, 175.7075, 2003/02/21 23:15:34.6, 8, 1.822
2085525, -39.0315, 175.708, 2003/02/21 23:15:55.0, 5, 1.309
2029041, -39.0268, 175.6758, 2003/02/21 23:16:53.6, 5, 0.941
2029044, -39.0386, 175.7015, 2003/02/21 23:22:56.2, 5, 1
2085531, -39.0484, 175.679, 2003/02/21 23:28:03.8, 5, 1.409
2029045, -39.0328, 175.742, 2003/02/21 23:29:01.5, 5, 3.218
2029047, -39.0348, 175.7268, 2003/02/21 23:32:32.4, 5, 1.213
2085535, -39.0362, 175.7, 2003/02/21 23:36:17.1, 5, 1.107
2029048, -39.0211, 175.7234, 2003/02/21 23:36:55.4, 5, 1.75
2085536, -39.0357, 175.7224, 2003/02/21 23:37:33.2, 5, 1.545
2029050, -39.0315, 175.7158, 2003/02/21 23:38:47.9, 5, 1.675
2085539, -39.0321, 175.7201, 2003/02/21 23:39:23.2, 5, 1.126
2085541, -39.0259, 175.7066, 2003/02/21 23:48:28.0, 5, 1.545
2029056, -39.0315, 175.7019, 2003/02/21 23:55:47.1, 10, 2.254
2029057, -39.0322, 175.7325, 2003/02/21 23:57:37.6, 5, 2.455
2029058, -39.0405, 175.7122, 2003/02/21 23:59:53.7, 5, 1.179
2085559, -39.027, 175.7112, 2003/02/22 00:07:13.8, 8, 1.671
2029063, -39.0453, 175.6864, 2003/02/22 00:08:59.0, 8, 1.549
2029066, -39.0297, 175.7195, 2003/02/22 00:17:11.1, 5, 1.073
2029071, -39.0395, 175.7098, 2003/02/22 00:28:02.4, 5, 1.522
2029073, -39.0421, 175.7101, 2003/02/22 00:31:55.6, 5, 1.274
2029089, -39.0381, 175.7027, 2003/02/22 01:38:18.9, 5, 1.325
2029098, -39.0422, 175.7134, 2003/02/22 02:03:03.2, 5, 1.291
2029132, -39.0313, 175.7475, 2003/02/22 04:25:51.5, 5, 3.169
2029138, -39.039, 175.7506, 2003/02/22 04:57:07.0, 5, 0.964
2029139, -39.0536, 175.6953, 2003/02/22 05:01:18.2, 5, 0.753
2029142, -39.0493, 175.674, 2003/02/22 05:10:51.5, 8, 1.644
2085632, -39.0375, 175.7112, 2003/02/22 05:21:00.7, 5, 0.976
2029148, -39.0293, 175.7354, 2003/02/22 05:33:17.2, 5, 0.539
2029181, -39.042, 175.7152, 2003/02/22 07:37:36.7, 5, 1.082
2029226, -39.0379, 175.6964, 2003/02/22 10:37:03.1, 5, 0.672
2029294, -39.0379, 175.7049, 2003/02/22 14:53:23.3, 8, 1.136
2029323, -39.0351, 175.7415, 2003/02/22 17:08:52.0, 5, 2.379
2086659, -39.024, 175.7495, 2003/02/22 17:11:26.7, 5, 1.345
2086660, -39.0353, 175.7225, 2003/02/22 17:11:52.5, 5, 1.129
2029325, -39.041, 175.7625, 2003/02/22 17:12:19.0, 5, 2.529
2029326, -39.0421, 175.6799, 2003/02/22 17:14:05.2, 5, 0.751
2029327, -39.0331, 175.7083, 2003/02/22 17:15:22.8, 5, 0.8
2029328, -39.0307, 175.7063, 2003/02/22 17:16:33.4, 5, 2.074
2029329, -39.046, 175.6837, 2003/02/22 17:17:51.2, 5, 1.246
2029340, -39.027, 175.7104, 2003/02/22 18:00:01.6, 9, 1.995
2029354, -39.0424, 175.6851, 2003/02/22 18:55:51.4, 11, 1.421
2086734, -39.0383, 175.7053, 2003/02/23 05:09:34.3, 5, 0.792
2029518, -39.0438, 175.6765, 2003/02/23 06:57:51.9, 12, 0.821
2029542, -39.026, 175.7104, 2003/02/23 08:56:37.8, 7, 2.082
2029549, -39.0283, 175.7312, 2003/02/23 09:28:41.4, 7, 1.447
2029621, -39.0427, 175.6721, 2003/02/23 16:38:34.8, 7, 1.192
2031453, -39.0218, 175.7055, 2003/02/27 01:08:02.5, 7, 2.261
2031455, -39.052, 175.6936, 2003/02/27 01:09:59.4, 5, 1.24
2087376, -39.0461, 175.6984, 2003/02/27 01:11:26.2, 5, 1.739
2031458, -39.0188, 175.6935, 2003/02/27 01:25:38.4, 7, 2.226
2031463, -39.0323, 175.7038, 2003/02/27 01:42:42.2, 5, 1.605
2087377, -39.0332, 175.7157, 2003/02/27 01:43:33.6, 5, 1.795
2087388, -39.0178, 175.7086, 2003/02/27 01:48:35.5, 5, 1.926
2087390, -39.016, 175.7146, 2003/02/27 01:51:36.8, 9, 2.126
2031468, -39.0466, 175.6964, 2003/02/27 01:57:32.1, 5, 1.146
2031471, -39.0467, 175.6937, 2003/02/27 02:08:32.8, 5, 1.564
2031472, -39.0556, 175.7136, 2003/02/27 02:09:34.2, 5, 1.39
2031482, -39.0472, 175.69, 2003/02/27 02:55:30.4, 5, 1.36
2031487, -39.0168, 175.7051, 2003/02/27 03:12:15.4, 7, 2.155
2031520, -39.0367, 175.6839, 2003/02/27 05:14:28.0, 5, 1.689
2087394, -39.0351, 175.6991, 2003/02/27 05:14:35.4, 5, 2.236
2087395, -39.0484, 175.6705, 2003/02/27 05:14:59.8, 5, 1.398
2087396, -39.0399, 175.6811, 2003/02/27 05:15:32.3, 5, 1.316
2031523, -39.031, 175.6943, 2003/02/27 05:24:59.7, 12, 1.818
2031552, -39.0229, 175.7197, 2003/02/27 06:45:36.1, 7, 2.252
2031557, -39.0229, 175.7054, 2003/02/27 06:57:19.9, 5, 2.461
2031559, -39.038, 175.6926, 2003/02/27 07:06:20.2, 13, 1.915
2031590, -39.046, 175.6951, 2003/02/27 08:55:32.1, 5, 1.425
2031593, -39.0474, 175.6924, 2003/02/27 09:17:00.4, 12, 1.857
2031601, -39.0372, 175.6861, 2003/02/27 09:38:55.4, 5, 2.111
2031602, -39.0523, 175.6675, 2003/02/27 09:42:45.1, 10, 1.645
2031613, -39.0209, 175.7109, 2003/02/27 10:22:30.8, 7, 2.179
2031622, -39.0428, 175.7029, 2003/02/27 11:03:03.8, 5, 1.785
2031740, -39.047, 175.7119, 2003/02/27 21:29:00.9, 5, 1.442
2031757, -39.0247, 175.704, 2003/02/27 22:40:41.0, 6, 1.88
2031824, -39.022, 175.7044, 2003/02/28 04:03:09.9, 6, 1.885
2087428, -39.0322, 175.686, 2003/02/28 04:03:24.7, 5, 1.618
2087431, -39.0496, 175.68, 2003/02/28 04:04:54.5, 5, 1.628
2087430, -39.0401, 175.6998, 2003/02/28 04:10:44.3, 5, 1.05


further earthquakes in March and early April;
REF, LAT, LONG, TIME, DEPTH, MAG
2032804, -39.0362, 175.7042, 2003/03/03 01:54:21.5, 5, 1.613
2032990, -39.0563, 175.6614, 2003/03/03 13:46:38.4, 12, 1.328
2032996, -39.0251, 175.702, 2003/03/03 13:58:14.5, 8, 1.616
2034926, -39.055, 175.6753, 2003/03/10 13:07:25.2, 12, 1.135
2035928, -39.0433, 175.7013, 2003/03/13 10:30:37.4, 5, 1.175
2036795, -39.0437, 175.6718, 2003/03/16 13:08:59.6, 5, 0.806
2036843, -39.0422, 175.7062, 2003/03/16 19:27:44.6, 5, 1.317
2036898, -39.0449, 175.7024, 2003/03/17 00:45:19.0, 5, 1.275
2037596, -39.0366, 175.7149, 2003/03/18 17:52:42.1, 9, 1.075
2037629, -39.0391, 175.6918, 2003/03/18 20:57:38.4, 5, 1.665
2037631, -39.0355, 175.7206, 2003/03/18 21:10:30.4, 5, 1.094
2037898, -39.0419, 175.73, 2003/03/19 16:22:56.5, 5, 1.016
2038087, -39.052, 175.6778, 2003/03/20 08:30:00.2, 5, 1.365
2038106, -39.046, 175.7161, 2003/03/20 09:43:01.2, 5, 0.999
2092366, -39.0407, 175.724, 2003/03/20 10:11:49.6, 5, 0.675
2038176, -39.0361, 175.7317, 2003/03/20 14:46:31.5, 5, 0.783
2042691, -39.0244, 175.7385, 2003/03/29 18:33:27.7, 98, 2.772
2047471, -39.0318, 175.7292, 2003/04/08 23:24:43.1, 5, 1.024
2097219, -39.0324, 175.7257, 2003/04/08 23:25:45.6, 5, 0.992

The second swarm of 2003 occurred on the 11th April UTC with two micro quakes, then 15hrs later a flurry of 17 events within ¾ hr, then a final micro ¾ hr after that. The largest quake was a 2.414 ML at 20:13:38.6 UTC.
The swarm was concentrated in the area north east of Wairehu Canal, around Motopuhi Island and north west of Onepoto Cratres as far as the Ponaga Saddle.
REF, LAT, LONG, TIME, DEPTH, MAG
2049085, -39.0252, 175.7013, 2003/04/11 05:00:26.6, 8, 1.774
2049086, -39.0294, 175.7181, 2003/04/11 05:01:48.2, 5, 1.142
2049392, -39.0202, 175.7185, 2003/04/11 20:13:38.6, 9, 2.414
2097595, -39.0283, 175.7145, 2003/04/11 20:14:45.9, 10, 2.183
2097600, -39.0332, 175.7061, 2003/04/11 20:15:40.2, 5, 1.237
2097606, -39.0346, 175.7088, 2003/04/11 20:15:55.3, 8, 1.191
2049395, -39.0275, 175.6991, 2003/04/11 20:19:39.8, 5, 1.984
2049396, -39.0245, 175.7262, 2003/04/11 20:20:45.3, 5, 0.931
2049397, -39.0308, 175.73, 2003/04/11 20:28:11.4, 5, 1.045
2097611, -39.0379, 175.7259, 2003/04/11 20:50:55.4, 5, 0.66
2097607, -39.0335, 175.7279, 2003/04/11 20:51:00.5, 5, 1.268
2097609, -39.0294, 175.7219, 2003/04/11 20:51:27.5, 5, 1.542
2097614, -39.0249, 175.7015, 2003/04/11 20:52:28.1, 5, 0.596
2097616, -39.0468, 175.7167, 2003/04/11 20:52:31.3, 5, 1.184
2097617, -39.0383, 175.698, 2003/04/11 20:52:50.4, 5, 1.074
2049404, -39.0208, 175.7068, 2003/04/11 20:53:42.4, 9, 1.858
2097613, -39.0317, 175.7191, 2003/04/11 20:55:01.0, 5, 0.809
2049406, -39.0368, 175.7194, 2003/04/11 20:57:19.5, 5, 1.033
2049407, -39.0317, 175.7209, 2003/04/11 20:59:36.2, 6, 1.373
2049415, -39.0328, 175.7178, 2003/04/11 21:42:04.8, 5, 0.849


There was no activity through May and June, until;
2083538, -39.0527, 175.6862, 2003/07/06 18:28:31.9, 5, 1.725


The third and smallest swarm occurred on July 19th north of Motuopuhi Island towards the base of Mt. Tihia, in two series of events, the first 3 minutes long and the second lasting 27 seconds.
REF, LAT, LONG, TIME, DEPTH, MAG
2089535, -39.0296, 175.7048, 2003/07/19 20:18:11.4, 8, 1.637
2089536, -39.0263, 175.7095, 2003/07/19 20:19:22.4, 5, 2.138
2124023, -39.0169, 175.7103, 2003/07/19 20:19:49.2, 9, 1.373
2089537, -39.0273, 175.7097, 2003/07/19 20:20:45.1, 8, 1.378
2089547, -39.0187, 175.7049, 2003/07/19 20:43:05.3, 9, 1.533
2124027, -39.0235, 175.7062, 2003/07/19 20:43:14.8, 5, 1.431
2124030, -39.0219, 175.703, 2003/07/19 20:43:32.4, 5, 1.481


further earthquakes in 2003;
2104783, -39.0373, 175.7321, 2003/08/23 23:54:11.1, 5, 1.398
2117277, -39.0443, 175.7482, 2003/09/17 19:56:43.9, 5, 1.816
2118083, -39.0163, 175.6971, 2003/09/19 14:17:58.7, 5, 1.407
2240734, -39.024, 175.6754, 2003/10/10 15:42:20.1, 5, 0.526
2131101, -39.054, 175.6763, 2003/10/20 10:32:44.5, 12, 0.549
2137311, -39.015, 175.7292, 2003/11/02 21:42:29.4, 161, 3.117
2145601, -39.0227, 175.7063, 2003/11/14 05:13:38.6, 5, 0.61
2152672, -39.0358, 175.7329, 2003/11/30 12:54:49.4, 5, 2.092
2152689, -39.0208, 175.7262, 2003/11/30 14:14:05.6, 12, 1.847

data by geonet. map by google maps. plots by highace using GPS Visualizer

2002 Rotoaira/Rotopounamu quakes

2002 was an active year with 125 quakes in the Rotoaira/Rotopounamu area, two small swarms occurred on 24th May and 30th August, a micro burst on 4th Sept and a larger swarm took place between the 18th and 25th September.
The largest quake of the year was on the 24th September at 21:38:48.9 at 5km depth in the middle of the September swarm, located between the two Onepoto Craters.
The deepest ( and 2nd largest) quake of 2002 was on the 26th November at 23:28:55.4 at 102 km deep, and located 770 metres north west of Motuopuhi Island ( marked on the map as a magenta coloured orb).


2002 Events;
1840583, -39.0491, 175.693, 2002/01/30 13:33:10.5, 5, 1.025
1840584, -39.0207, 175.6908, 2002/01/30 13:35:09.7, 7, 2.329
1928177, -39.0395, 175.6794, 2002/01/30 13:36:10.2, 12, 1.335
1987803, -39.037, 175.7093, 2002/03/02 20:50:22.3, 12, 1.158
1853767, -39.0471, 175.6995, 2002/03/15 09:39:03.6, 8, 1.137
1853786, -39.0376, 175.695, 2002/03/15 12:53:33.5, 8, 1.271
1853820, -39.0394, 175.6612, 2002/03/15 17:05:13.4, 12, 0.515
1856095, -39.0332, 175.6733, 2002/03/22 14:38:57.1, 12, 0.839
1875252, -39.0544, 175.7467, 2002/05/11 00:13:37.0, 5, 0.872
2011661, -39.0484, 175.7813, 2002/05/11 18:19:15.3, 5, 1.205
1875505, -39.0176, 175.6749, 2002/05/12 02:07:11.6, 5, 0.923
2012177, -39.0251, 175.7184, 2002/05/14 22:35:47.9, 12, 0.949
1877074, -39.0337, 175.6871, 2002/05/14 22:35:51.7, 7, 1.968
1877544, -39.0473, 175.6634, 2002/05/15 15:30:23.1, 11, 1.147
1877866, -39.0265, 175.6862, 2002/05/16 16:41:37.8, 5, 0.698
1877891, -39.0155, 175.7163, 2002/05/16 19:08:27.4, 5, 1.053
2012524, -39.0213, 175.6953, 2002/05/17 01:16:25.0, 12, 1.131
1878708, -39.052, 175.7081, 2002/05/18 14:32:39.7, 5, 0.641
2013349, -39.0538, 175.6734, 2002/05/20 05:56:18.9, 5, 0.857

A small swarm of 9 events Mag 1.355 to 2.515 ML occurred on 24th May , clustered in the low laying land north west of Lake Rotoaira.
1881303, -39.0461, 175.6941, 2002/05/24 08:34:18.3, 5, 1.811
1881347, -39.0262, 175.6934, 2002/05/24 11:36:16.2, 12, 2.056
2013686, -39.0395, 175.6828, 2002/05/24 11:37:02.4, 5, 2.455
1881359, -39.0425, 175.686, 2002/05/24 12:28:22.6, 7, 2.277
1881390, -39.0262, 175.6653, 2002/05/24 15:21:03.3, 7, 2.031
2013732, -39.0412, 175.6603, 2002/05/24 18:04:10.2, 5, 1.558
1881418, -39.0444, 175.677, 2002/05/24 18:04:15.7, 5, 2.515
2013735, -39.0299, 175.6926, 2002/05/24 18:27:07.7, 12, 1.355
1881429, -39.0406, 175.6833, 2002/05/24 19:07:56.9, 6, 2.316


1881500, -39.0411, 175.69, 2002/05/25 01:45:43.7, 5, 2.279
1883603, -39.0406, 175.6917, 2002/05/30 04:38:16.5, 5, 3.085
1889203, -39.0165, 175.6729, 2002/06/16 16:29:59.7, 13, 1.021
1889204, -39.0182, 175.6944, 2002/06/16 16:35:16.1, 13, 0.998
1894881, -39.026, 175.6802, 2002/07/01 13:06:52.6, 12, 1.678
1894882, -39.0338, 175.6802, 2002/07/01 13:12:42.4, 12, 1.157
1896249, -39.0356, 175.7086, 2002/07/07 13:17:11.7, 12, 2.447

A small micro swarm on 30th August with magnitudes between 0.996 and 2.379 ML. As in May clustered in the north west corner of Lake Rotoaira, with 3 quakes along the western shoreline and one out under the lake itself, but the largest event located under Mt Pihanga to the east.
1916468, -39.0292, 175.6948, 2002/08/30 13:30:11.4, 5, 1.44
2035341, -39.0438, 175.7819, 2002/08/30 13:30:16.4, 5, 2.379
1916469, -39.0212, 175.6768, 2002/08/30 13:32:08.1, 5, 1.837
1916470, -39.0301, 175.6814, 2002/08/30 13:33:47.1, 10, 1.437
1916472, -39.0342, 175.6941, 2002/08/30 13:46:53.6, 5, 1.484
1916473, -39.0169, 175.7007, 2002/08/30 13:50:14.6, 11, 1.942
1916481, -39.035, 175.7035, 2002/08/30 14:19:53.5, 11, 0.996
1916535, -39.0375, 175.6911, 2002/08/30 20:57:17.5, 5, 1.282


A small 6 minute micro burst on Sept 4th across the middle of Lake Rotoaira, perhaps a precursor to the larger swarm 12 days later.
1917886, -39.0385, 175.6933, 2002/09/04 12:48:15.8, 8, 1.858
1917887, -39.0422, 175.7065, 2002/09/04 12:50:51.8, 8, 1.716
1917888, -39.0442, 175.7173, 2002/09/04 12:52:59.7, 7, 1.725
1917889, -39.0479, 175.6961, 2002/09/04 12:54:09.0, 5, 1.618


The 68 event swarm of 18-25th September was concentrated through the mid northern part of lake Rotoaira, the bulk of the quakes located from just onshore the western side across under the lake in a W-E direction to the northern, western and southern sides of Onepoto Craters with a lesser number up towards Motuopuhi Island.

1925951, -39.0387, 175.7164, 2002/09/18 10:20:57.2, 7, 1.97
2040516, -39.0362, 175.7076, 2002/09/18 10:21:12.5, 7, 1.44
1925956, -39.0367, 175.6977, 2002/09/18 11:00:21.3, 5, 3.247
2040519, -39.0416, 175.7196, 2002/09/18 11:02:23.9, 6, 1.787
2040551, -39.0483, 175.6995, 2002/09/18 11:02:54.7, 9, 1.246
2040737, -39.0416, 175.7235, 2002/09/18 11:03:38.7, 5, 1.127
2040738, -39.0485, 175.6882, 2002/09/18 11:04:18.4, 5, 1.03
1925959, -39.0458, 175.7061, 2002/09/18 11:04:43.5, 9, 1.68
2040741, -39.0403, 175.6916, 2002/09/18 11:04:54.1, 5, 1.245
1925960, -39.0414, 175.6991, 2002/09/18 11:05:44.4, 5, 0.915
1925962, -39.047, 175.6952, 2002/09/18 11:10:40.2, 5, 0.921
2041806, -39.0391, 175.676, 2002/09/18 11:10:50.7, 5, 1.046
2040743, -39.0373, 175.6995, 2002/09/18 11:11:47.5, 5, 1.074
1925964, -39.0495, 175.695, 2002/09/18 11:12:48.6, 8, 1.056
2040752, -39.0453, 175.7373, 2002/09/18 11:13:46.9, 7, 1.663
1925965, -39.0398, 175.728, 2002/09/18 11:13:58.2, 7, 2.36
2041948, -39.0351, 175.7096, 2002/09/18 11:14:09.0, 8, 2.598
2042039, -39.0364, 175.6884, 2002/09/18 11:14:21.2, 5, 2.382
2040753, -39.0192, 175.6648, 2002/09/18 11:14:50.7, 5, 1.339
2042159, -39.0524, 175.6986, 2002/09/18 11:14:58.1, 5, 1.304
1925968, -39.0311, 175.7116, 2002/09/18 11:23:46.3, 5, 0.79
1925969, -39.0469, 175.7252, 2002/09/18 11:24:45.5, 5, 1.275
1925971, -39.0439, 175.7188, 2002/09/18 11:33:58.8, 5, 2.072
1925972, -39.0466, 175.7128, 2002/09/18 11:35:46.7, 5, 1.4
2042169, -39.0436, 175.6988, 2002/09/18 11:35:57.8, 5, 1.086
1925973, -39.0445, 175.7208, 2002/09/18 11:36:53.0, 6, 2.248
1925974, -39.04, 175.7128, 2002/09/18 11:38:28.0, 7, 1.979
2041174, -39.0495, 175.7309, 2002/09/18 11:44:59.0, 5, 1.776
1925978, -39.0435, 175.727, 2002/09/18 11:47:08.1, 7, 1.618
2041177, -39.0436, 175.7131, 2002/09/18 11:47:32.0, 5, 1.005
1925981, -39.05, 175.7244, 2002/09/18 11:53:38.9, 7, 1.217
1925987, -39.0348, 175.6953, 2002/09/18 12:51:25.5, 8, 2.204
1925989, -39.0416, 175.7161, 2002/09/18 12:57:06.6, 6, 1.58
1925990, -39.0382, 175.7162, 2002/09/18 12:58:11.1, 7, 2.077
1926000, -39.0457, 175.714, 2002/09/18 13:46:52.0, 5, 1.564
2041198, -39.0505, 175.693, 2002/09/18 13:50:16.9, 5, 0.714
1926001, -39.0445, 175.7163, 2002/09/18 13:50:46.7, 6, 1.743
1926003, -39.0394, 175.7137, 2002/09/18 13:57:11.3, 6, 2.264
2041603, -39.0497, 175.724, 2002/09/18 13:57:38.4, 5, 1.398
2041671, -39.0411, 175.7026, 2002/09/18 13:57:50.6, 5, 1.096
1926010, -39.0407, 175.7222, 2002/09/18 14:27:17.3, 5, 0.921
1926021, -39.0392, 175.7298, 2002/09/18 15:41:16.2, 4, 1.336
1926027, -39.0344, 175.7265, 2002/09/18 16:09:00.4, 5, 1.585
2041324, -39.0468, 175.731, 2002/09/18 19:11:31.3, 5, 1.921
1926091, -39.0454, 175.7221, 2002/09/18 21:28:25.0, 5, 2.015
1926208, -39.0407, 175.7175, 2002/09/19 04:05:03.9, 5, 1.865
1926858, -39.0453, 175.7216, 2002/09/21 01:03:44.3, 5, 2.07
1926918, -39.047, 175.711, 2002/09/21 05:27:32.7, 5, 1.283
1928523, -39.036, 175.7303, 2002/09/24 21:38:48.9, 5, 3.848
2044351, -39.048, 175.7039, 2002/09/24 21:40:43.1, 5, 1.504
2044352, -39.0434, 175.7107, 2002/09/24 21:41:31.9, 5, 2.009
2044353, -39.0331, 175.7138, 2002/09/24 21:41:55.2, 5, 2.112
2044354, -39.0443, 175.6908, 2002/09/24 21:42:57.1, 5, 1.31
1928525, -39.0283, 175.7487, 2002/09/24 21:44:27.2, 5, 1.134
1928526, -39.0377, 175.7137, 2002/09/24 21:45:46.0, 8, 2.051
1928527, -39.0522, 175.6931, 2002/09/24 21:47:32.9, 8, 1.305
1928529, -39.0479, 175.7254, 2002/09/24 21:50:57.9, 5, 0.977
1928530, -39.0385, 175.7209, 2002/09/24 21:53:55.5, 5, 1.23
2044296, -39.0465, 175.7131, 2002/09/24 21:54:25.7, 5, 1.06
1928535, -39.0353, 175.7168, 2002/09/24 22:05:32.4, 7, 1.967
2044299, -39.0375, 175.7285, 2002/09/24 22:05:52.4, 5, 1.902
2044338, -39.0445, 175.6955, 2002/09/24 23:07:26.7, 5, 1.16
1928574, -39.0482, 175.7109, 2002/09/24 23:52:53.6, 7, 1.667
1928592, -39.0332, 175.7215, 2002/09/25 00:26:30.2, 7, 2.109
1928595, -39.0458, 175.7079, 2002/09/25 00:39:50.8, 4, 2.127
1928596, -39.0455, 175.7104, 2002/09/25 00:42:15.4, 5, 1.668
1928856, -39.0464, 175.7305, 2002/09/25 15:30:57.8, 5, 1.861
2044673, -39.0497, 175.765, 2002/09/25 15:32:30.9, 5, 1.56

There were a further 11 quakes across the Rotoaira/Rotopounamu area during October and November;
1972859, -39.036, 175.663, 2002/09/30 06:01:01.1, 7, 1.283
1974546, -39.0192, 175.6682, 2002/10/05 09:48:36.3, 5, 0.724
1974665, -39.0444, 175.712, 2002/10/05 17:46:23.3, 5, 1.709
1976429, -39.0438, 175.7476, 2002/10/10 20:07:58.2, 5, 1.16
1976908, -39.0347, 175.7437, 2002/10/12 07:56:21.8, 5, 1.226
1980365, -39.0292, 175.6701, 2002/10/15 10:13:26.6, 5, 0.607
1987208, -39.0271, 175.7045, 2002/10/26 23:28:55.4, 102, 3.262
1994716, -39.0475, 175.6697, 2002/11/13 07:10:44.4, 7, 1.018
1994719, -39.0448, 175.6643, 2002/11/13 07:21:57.6, 8, 1.334
2000362, -39.0202, 175.6927, 2002/11/29 03:27:10.5, 5, 0.855

data by geonet. map by google maps. plots by highace using GPS Visualizer

2001 Rotoaira/Rotopounamu quakes

2001 was a relativly quiet year with only 20 quakes in the Rotoaira/Rotopounamu area, with activity restricted to the months of February, March, July and October. The deepest quake was 14km deep, a mag 1.81 ML on the 31st July at 12:35:08.9 UTC.



Small swarm on 10th February lasting 3¼ hrs on the northern section of lake Rotoaira between Mangamutu Stream, Mt Tihia, Motuopuhi Island and the eastern shore.
REF, LAT, LONG, TIME, DEPTH, MAG, FELT
1752619, -39.0298, 175.711, 2001/02/10 02:26:00.0, 5, 1.519
1691580, -39.0199, 175.7068, 2001/02/10 02:30:59.9, 5, 1.878
1752175, -39.0236, 175.7078, 2001/02/10 02:31:16.0, 5, 1.167
1691584, -39.0173, 175.7053, 2001/02/10 02:41:11.9, 5, 1.729
1752179, -39.0195, 175.7015, 2001/02/10 02:41:42.6, 9, 2.111
1691590, -39.0249, 175.7004, 2001/02/10 03:34:03.4, 5, 2.532
1691594, -39.0329, 175.6659, 2001/02/10 03:45:49.5, 5, 0.842
1752258, -39.0168, 175.7084, 2001/02/10 05:30:17.7, 5, 1.897
1691615, -39.0185, 175.7036, 2001/02/10 05:47:24.4, 5, 2.095


1754705, -39.0472, 175.6939, 2001/02/13 13:34:54.9, 5, 0.986
1695962, -39.0389, 175.7597, 2001/02/22 10:11:27.7, 12, 1.076
1697954, -39.0569, 175.7847, 2001/03/02 09:13:48.3, 5, 2.53

Small swarm of 6 quakes, located under the northwestern Rotoaira valley SW and NE of Whairehu Canal, occurred on the 31st July.
1769020, -39.0435, 175.6618, 2001/07/31 10:28:37.4, 7, 1.739
1769036, -39.035, 175.6845, 2001/07/31 12:35:08.9, 14, 1.81
1853628, -39.0433, 175.6714, 2001/07/31 12:35:33.5, 9, 1.819
1769037, -39.0248, 175.7013, 2001/07/31 12:36:58.0, 7, 2.384
1896388, -39.0167, 175.6946, 2001/07/31 12:37:03.5, 5, 2.307
1769059, -39.036, 175.6781, 2001/07/31 16:01:29.7, 8, 1.264


Two further quakes in October;
1796748, -39.0152, 175.6852, 2001/10/06 20:31:46.8, 10, 1.424
1809493, -39.0512, 175.6686, 2001/10/23 15:02:47.5, 8, 1.509

data by geonet. map by google maps. plots by highace using GPS Visualizer

2000 Rotoaira/Rotopounamu quakes

In 2000 there were 72 earthquakes in the Rotoaira/Rotopounamu area, with one large swarm on the 13th and 14th May. The largest and deepest quake of 2000 was not part of the swarm but occurred a month later in June on the 25th at 21:15:31.3 at a depth of 156km, located 680 metres south of Motuopuhi Island and 540 metres west of the eastern shore of Lake Rotoaira (shown on map as a grey coloured orb).



REF, LAT, LONG, TIME, DEPTH, MAG
1477055, -39.0299, 175.7213, 2000/01/19 11:18:57.8, 5, 1.313
1477061, -39.0354, 175.6933, 2000/01/19 12:14:36.9, 12, 1.203
1485305, -39.0381, 175.6826, 2000/01/31 23:22:53.0, 12, 1.796
1489231, -39.0579, 175.6749, 2000/02/12 17:17:11.8, 5, 2.072
1495513, -39.0201, 175.6699, 2000/03/07 08:45:28.6, 5, 1.537
1498809, -39.0288, 175.71, 2000/03/17 06:26:29.3, 5, 0.985
1501019, -39.0497, 175.6847, 2000/03/26 17:41:48.0, 12, 1.099
1504412, -39.0586, 175.6711, 2000/04/02 10:02:18.7, 5, 0.787
1522979, -39.0196, 175.7245, 2000/04/02 23:29:50.6, 5, 1.648
1504800, -39.0239, 175.7134, 2000/04/04 22:55:06.3, 5, 1.462
1518685, -39.0194, 175.7166, 2000/04/05 12:44:38.2, 5, 1.338

Swarm on 13th – 14th May across the northern reaches of Lake Rotoaira, in a NW to SE direction, from Wairehu Stream in the west through to Onepoto Cratres in the east, mostly south of Motuopuhi Island. The swarm developed in clusters time wise, with multiple events at NZST 7pm and 9pm on the 13th , then at 6am, 11am, noon, and 3pm on the 14th.

REF, LAT, LONG, TIME, DEPTH, MAG
1522047, -39.029, 175.6952, 2000/05/13 07:10:48.3, 7, 2.181
1522048, -39.0359, 175.6801, 2000/05/13 07:12:19.1, 5, 1.909
1522049, -39.0325, 175.683, 2000/05/13 07:14:04.9, 5, 1.889
1532554, -39.034, 175.6788, 2000/05/13 07:48:35.6, 5, 1.551
1522060, -39.0199, 175.6914, 2000/05/13 09:10:49.1, 9, 2.667
1522061, -39.0371, 175.7022, 2000/05/13 09:13:11.0, 5, 2.036
1522062, -39.0316, 175.7286, 2000/05/13 09:14:00.3, 5, 1.765
1522063, -39.0297, 175.6992, 2000/05/13 09:17:12.1, 7, 2.303
1522064, -39.0298, 175.7037, 2000/05/13 09:20:57.5, 5, 1.634
1522072, -39.037, 175.7165, 2000/05/13 12:14:12.3, 5, 1.888
1540313, -39.0299, 175.6786, 2000/05/13 17:59:55.7, 5, 1.525
1522088, -39.0345, 175.6777, 2000/05/13 18:00:01.9, 5, 1.915
1540314, -39.0334, 175.6902, 2000/05/13 18:00:41.4, 5, 1.37
1522089, -39.0291, 175.6964, 2000/05/13 18:00:57.4, 9, 2.847
1540044, -39.0375, 175.6995, 2000/05/13 18:01:42.6, 5, 1.813
1522091, -39.039, 175.7097, 2000/05/13 18:21:17.2, 5, 1.665
1522092, -39.0329, 175.6937, 2000/05/13 18:24:24.4, 7, 2.347
1532739, -39.043, 175.7345, 2000/05/13 18:28:07.2, 5, 1.309
1522093, -39.0311, 175.6829, 2000/05/13 18:41:27.5, 10, 2.479
1522094, -39.032, 175.7005, 2000/05/13 18:42:44.9, 9, 2.207
1522095, -39.0229, 175.7027, 2000/05/13 18:45:51.7, 5, 1.547
1540539, -39.0401, 175.7257, 2000/05/13 18:46:10.4, 5, 1.203
1532751, -39.045, 175.7139, 2000/05/13 19:06:04.2, 5, 1.315
1522105, -39.0367, 175.7072, 2000/05/13 21:16:18.0, 5, 1.89
1522109, -39.0351, 175.6982, 2000/05/13 23:44:26.8, 5, 2.462
1540285, -39.0347, 175.6982, 2000/05/13 23:45:37.5, 5, 2.536
1540286, -39.0342, 175.6854, 2000/05/13 23:45:59.0, 5, 2.195
1540287, -39.024, 175.6703, 2000/05/13 23:46:22.3, 5, 1.44
1540289, -39.0344, 175.7086, 2000/05/13 23:47:05.9, 5, 1.261
1522112, -39.0414, 175.7119, 2000/05/13 23:49:24.7, 5, 1.291
1522113, -39.0378, 175.7007, 2000/05/14 00:05:14.1, 5, 1.154
1540540, -39.0349, 175.7037, 2000/05/14 00:05:27.5, 5, 0.96
1522114, -39.0391, 175.6911, 2000/05/14 00:07:32.2, 5, 1.162
1522116, -39.0357, 175.6887, 2000/05/14 00:35:05.4, 5, 1.542
1522117, -39.0251, 175.7092, 2000/05/14 00:38:40.7, 5, 0.987
1522118, -39.0363, 175.6814, 2000/05/14 00:39:51.9, 6, 1.852
1540288, -39.0356, 175.6933, 2000/05/14 00:40:23.8, 5, 1.198
1540290, -39.0345, 175.7064, 2000/05/14 00:41:00.0, 7, 1.032
1540291, -39.027, 175.6725, 2000/05/14 00:41:16.8, 5, 1.402
1522121, -39.0321, 175.694, 2000/05/14 00:47:26.9, 8, 2.2
1522127, -39.0386, 175.7046, 2000/05/14 02:17:16.9, 5, 1.331
1522129, -39.0195, 175.6913, 2000/05/14 03:29:55.9, 8, 2.345
1540292, -39.0407, 175.7078, 2000/05/14 03:31:03.3, 5, 1.242
1522130, -39.0322, 175.6931, 2000/05/14 03:31:34.4, 7, 1.804
1540293, -39.0377, 175.6888, 2000/05/14 03:32:08.4, 6, 2.183
1522132, -39.0404, 175.6857, 2000/05/14 03:33:21.4, 5, 1.728
1522133, -39.0459, 175.7044, 2000/05/14 03:34:37.4, 4, 0.99
1540296, -39.0342, 175.7057, 2000/05/14 03:35:00.0, 5, 1.132
1540297, -39.0334, 175.7021, 2000/05/14 03:35:47.0, 5, 1.214
1522135, -39.0397, 175.6982, 2000/05/14 03:37:02.6, 5, 1.057
1522137, -39.0403, 175.7065, 2000/05/14 03:56:46.3, 5, 1.16
1522158, -39.0427, 175.7015, 2000/05/14 06:49:24.5, 5, 1.053
1522162, -39.0302, 175.6829, 2000/05/14 07:48:20.8, 9, 2.454
1525958, -39.0404, 175.7002, 2000/05/23 06:48:28.9, 5, 1.406
1526185, -39.0363, 175.7214, 2000/05/24 06:44:06.6, 5, 1.031

Further quakes in May, June, July, October, and November:
1526192, -39.036, 175.7144, 2000/05/24 07:36:51.5, 5, 0.968
1526309, -39.0387, 175.7368, 2000/05/25 08:55:28.6, 5, 1.534
1536639, -39.0408, 175.7086, 2000/06/25 21:15:31.3, 156, 3.319
1589803, -39.033, 175.7659, 2000/07/31 20:24:16.3, 5, 1.14
1598157, -39.0155, 175.7033, 2000/08/13 05:23:21.1, 5, 1.918
1635543, -39.023, 175.6989, 2000/11/02 04:47:42.9, 12, 2.048

data by geonet. map by google maps. plots by highace using GPS Visualizer

1999 Rotoaira/Rotopounamu quakes

In 1999 there were 13 earthquakes in the Rotoaira/Rotopounamu area, the closest thing to a swarm was a series of 5 events on the 27th and 28th February. The largest quake in 1999 was a 2.431ML 7km deep under Matapupuni Stream north of Te Ponanga Road on 27th February at 02:49:49.4 UTC.



REF, LAT, LONG, TIME, DEPTH, MAG
1363156, -39.02495, 175.71417, 1999/02/17 17:02:16.0, 5, 1.423
1377706, -39.02744, 175.73485, 1999/02/20 14:07:35.9, 5, 1.44
1369817, -39.01824, 175.71817, 1999/02/27 02:49:49.4, 7, 2.431
1369822, -39.02443, 175.72803, 1999/02/27 07:35:31.7, 5, 1.919
1369823, -39.01605, 175.7235, 1999/02/27 07:50:48.1, 9, 2.1
1369856, -39.02859, 175.71146, 1999/02/28 03:42:27.3, 5, 1.522
1369858, -39.01897, 175.71707, 1999/02/28 05:07:56.0, 5, 2.327
1395215, -39.02836, 175.69376, 1999/04/19 13:14:05.1, 5, 1.267
1424372, -39.01929, 175.74179, 1999/08/19 15:13:01.4, 5, 1.631
1428208, -39.02145, 175.70267, 1999/09/05 08:31:15.7, 11, 1.628
1430216, -39.03331, 175.70935, 1999/09/17 07:39:47.5, 5, 1.482
1468315, -39.02621, 175.78966, 1999/12/28 13:51:22.9, 5, 1.464
1468319, -39.02725, 175.78214, 1999/12/28 14:21:29.0, 5, 1.474

data by geonet. map by google maps. plots by highace using GPS Visualizer

1998 Rotoaira/Rotopounamu quakes

In 1998 there were 18 earthquakes in the Rotoaira/Rotopounamu area. There was a series of 4 micro quakes within 50 minutes on the 18th March west of Lake Rotoaira and south of Mangatipua Stream (shown on map as a pink coloured orbs) The largest and deepest quake in 1998 was a 3.746ML, 214km deep on the 26th June at 02:57:16 UTC under Mangatipua Stream 2km E of Otukou (shown on map as a purple coloured orb). Another deep quake, a 2.96ML, 154km deep, struck on the 27th January at 06:37:11.8 UTC WSW of Motuopuhi Island. (shown on map as a magenta coloured orb).



REF, LAT, LONG, TIME, DEPTH, MAG
1223199, -39.04008, 175.7076, 1998/01/01 21:27:51.7, 5, 2.074
1221759, -39.04977, 175.66832, 1998/01/04 21:55:33.1, 5, 1.581
1229538, -39.01683, 175.66895, 1998/01/21 23:29:59.3, 5, 1.576
1227886, -39.03475, 175.70341, 1998/01/27 06:37:11.8, 154, 2.96
1243408, -39.03874, 175.69421, 1998/03/12 08:19:52.4, 5, 1.13
1248212, -39.05026, 175.67963, 1998/03/18 02:49:51.0, 5, 1.413
1248213, -39.05017, 175.68246, 1998/03/18 03:26:57.8, 5, 1.797
1262259, -39.04921, 175.67245, 1998/03/18 03:27:05.1, 5, 2.016
1262260, -39.05591, 175.69035, 1998/03/18 03:38:52.9, 5, 1.398
1248239, -39.05941, 175.66362, 1998/03/22 05:49:37.7, 5, 1.078
1249998, -39.03293, 175.76743, 1998/03/24 09:19:02.9, 5, 1.73
1203040, -39.05705, 175.67653, 1998/03/27 01:54:05.4, 5, 2.328
1258758, -39.02758, 175.67015, 1998/04/10 20:23:16.5, 5, 1.404
1213976, -39.03918, 175.68039, 1998/04/10 20:23:57.7, 5, 1.269
1213977, -39.04248, 175.685, 1998/04/10 20:35:27.3, 5, 1.446
1241204, -39.04976, 175.7093, 1998/05/25 06:47:13.4, 5, 1.358
1261268, -39.03965, 175.67325, 1998/06/26 02:57:16.0, 214, 3.746
1271055, -39.02768, 175.78816, 1998/08/03 13:00:40.5, 5, 1.702

data by geonet. map by google maps. plots by highace using GPS Visualizer

1997 Rotoaira/Rotopounamu quakes

In 1997 there were 74 earthquakes in the Rotoaira/Rotopounamu area.
There were two main swarms, one on the 7th January, the other on 6th/7th February.
There were four other smaller swarms of 4 events each on 3rd Jan., 17th May., 14th June and 23rd August.
The deepest and second largest quake of 1997 was a 3.077 ML, 93km deep on the 19th October at 10:01:57 located in the NE corner of Lake Rotoaira near Opotaka kainga (historic settlement) ( marked on the map as a magenta orb). The largest and only other deep quake of the year was a 3.468 ML, 80km deep on 14th November at 04:32:20.5 located under the southern flanks of Mt Pihanga (marked on the map as a purple orb). Neither of these were reported as felt and were not part of any of the earthquake swarms mentioned above.


REF, LAT, LONG, TIME, DEPTH, MAG
1072295, -39.01932, 175.7372, 1997/01/03 01:15:40.4, 5, 2.719
1071314, -39.02197, 175.70793, 1997/01/03 02:55:30.5, 11, 1.946
1070455, -39.02097, 175.70103, 1997/01/03 05:47:42.0, 5, 1.843
1072298, -39.03003, 175.71382, 1997/01/03 06:06:57.6, 5, 1.85

Swarm with 14 events on the 7th January along the southern base of Mt. Tihia in a W-E direction from Mangamutu Stream east to Lake Rotopounamu
REF, LAT, LONG, TIME, DEPTH, MAG
1083864, -39.02048, 175.72298, 1997/01/07 11:35:27.1, 5, 1.6
1083866, -39.01861, 175.72563, 1997/01/07 11:47:06.3, 5, 1.405
1081643, -39.01928, 175.7251, 1997/01/07 13:46:15.4, 5, 1.322
1083870, -39.01873, 175.71744, 1997/01/07 13:56:15.7, 5, 1.753
1083871, -39.02097, 175.72412, 1997/01/07 13:57:25.9, 5, 1.645
1083620, -39.01826, 175.71852, 1997/01/07 14:38:34.7, 5, 2.092
1073011, -39.01821, 175.71288, 1997/01/07 14:42:15.0, 5, 2.487
1070188, -39.01721, 175.73134, 1997/01/07 14:49:23.6, 5, 1.519
1073248, -39.02036, 175.7336, 1997/01/07 15:38:10.1, 5, 1.476
1073013, -39.02311, 175.73672, 1997/01/07 17:34:30.2, 5, 2.775
1072790, -39.02807, 175.68805, 1997/01/07 18:17:13.7, 5, 1.257
1083621, -39.02434, 175.71333, 1997/01/07 19:36:48.8, 5, 1.685
1083883, -39.02161, 175.72896, 1997/01/07 19:42:48.5, 5, 1.922
1083622, -39.01884, 175.70558, 1997/01/07 20:56:49.8, 11, 2.165



One other event in January:
1084023, -39.04131, 175.73732, 1997/01/16 03:58:47.1, 0, 1.582

Swarm on 6th and 7th February scattered across the northern end of Lake Rotaira from Otukuo in the west to Mt. Pihanga in the east up to the base of Mt Tihia in the NW and Puketopo Cone in the NE.
REF, LAT, LONG, TIME, DEPTH, MAG
1083798, -39.02357, 175.71936, 1997/02/06 15:37:39.5, 5, 1.826
1099068, -39.03179, 175.68327, 1997/02/06 15:38:10.8, 5, 1.51
1099070, -39.01691, 175.69658, 1997/02/06 15:38:17.7, 5, 1.992
1099072, -39.03179, 175.71262, 1997/02/06 15:41:01.3, 5, 1.316
1084545, -39.02773, 175.73929, 1997/02/06 15:42:35.2, 5, 1.615
1099073, -39.01869, 175.74937, 1997/02/06 15:42:56.1, 5, 1.541
1084546, -39.01637, 175.69824, 1997/02/06 15:44:17.3, 5, 2.427
1099077, -39.03719, 175.66887, 1997/02/06 15:44:57.3, 5, 2.074
1084547, -39.02219, 175.72044, 1997/02/06 15:45:55.2, 5, 2.092
1083803, -39.01554, 175.69615, 1997/02/06 15:51:24.5, 5, 1.842
1099079, -39.02677, 175.718, 1997/02/06 15:57:43.3, 5, 1.414
1084548, -39.01584, 175.72128, 1997/02/06 16:03:22.5, 5, 1.892
1099080, -39.01941, 175.72064, 1997/02/06 16:03:33.7, 5, 1.686
1084549, -39.03674, 175.68919, 1997/02/06 16:36:13.5, 5, 1.439
1084552, -39.01896, 175.71263, 1997/02/06 17:40:30.8, 5, 2.058
1083807, -39.01557, 175.70198, 1997/02/06 17:55:54.0, 5, 2.017
1084554, -39.04055, 175.67606, 1997/02/06 19:30:08.7, 5, 1.601
1083808, -39.05475, 175.76129, 1997/02/07 07:02:58.8, 5, 2.565
1083539, -39.04951, 175.76563, 1997/02/07 07:22:29.8, 5, 1.562
1083809, -39.04939, 175.74794, 1997/02/07 11:09:10.9, 5, 2.573


REF, LAT, LONG, TIME, DEPTH, MAG
1093287, -39.04892, 175.73378, 1997/02/12 11:40:56.3, 5, 2.546
1093340, -39.02951, 175.74709, 1997/02/21 15:58:11.6, 5, 1.711
1094833, -39.04794, 175.78694, 1997/02/21 15:58:56.2, 5, 1.417
1119066, -39.04618, 175.72464, 1997/04/07 17:22:21.1, 12, 2.33
1121831, -39.02031, 175.71785, 1997/04/20 01:40:23.3, 12, 1.948
1120351, -39.03003, 175.67053, 1997/04/20 17:56:22.4, 9, 2.09
1120352, -39.02234, 175.72874, 1997/04/20 17:57:21.6, 5, 2.207
1133694, -39.041, 175.7211, 1997/05/17 10:27:21.1, 5, 1.966
1134781, -39.04241, 175.72238, 1997/05/17 11:00:27.5, 5, 2.04
1138599, -39.03599, 175.71281, 1997/05/17 21:10:05.9, 5, 1.688
1134783, -39.05378, 175.70233, 1997/05/17 23:04:56.6, 5, 1.531
1136511, -39.03353, 175.69624, 1997/05/20 05:25:29.6, 5, 1.68
1139134, -39.02341, 175.71059, 1997/05/28 08:27:55.0, 5, 1.648
1155607, -39.04791, 175.66991, 1997/06/07 10:26:37.5, 12, 1.187
1146056, -39.05197, 175.71523, 1997/06/07 10:27:30.9, 5, 1.64
1155608, -39.02413, 175.69185, 1997/06/07 10:27:54.3, 5, 1.623
1146917, -39.03432, 175.66084, 1997/06/13 21:28:07.8, 5, 1.19
1145910, -39.02243, 175.6694, 1997/06/13 23:50:21.3, 5, 1.323
1146641, -39.02224, 175.70695, 1997/06/14 01:51:08.5, 5, 1.513
1146642, -39.02198, 175.71423, 1997/06/14 01:54:06.4, 5, 1.907
1146924, -39.01508, 175.69124, 1997/06/14 02:52:04.7, 5, 1.474
1144922, -39.03478, 175.69737, 1997/06/14 10:39:58.7, 5, 1.154
1165457, -39.03487, 175.71841, 1997/08/23 08:26:47.4, 5, 2.423
1169028, -39.0402, 175.73183, 1997/08/23 09:05:52.8, 5, 2.026
1169029, -39.05813, 175.71936, 1997/08/23 10:29:03.1, 12, 1.772
1165458, -39.04234, 175.68988, 1997/08/23 21:39:43.6, 12, 1.696
1188921, -39.02178, 175.71614, 1997/10/19 10:01:57.0, 93, 3.077
1199076, -39.02399, 175.71404, 1997/11/09 11:45:47.6, 5, 2.99
1199077, -39.01578, 175.71077, 1997/11/09 11:52:45.0, 12, 2.444
1199080, -39.0162, 175.70882, 1997/11/09 14:15:04.1, 5, 2.499
1204359, -39.05347, 175.77289, 1997/11/14 04:32:20.5, 80, 3.468
1212140, -39.04707, 175.6656, 1997/12/04 10:40:01.0, 5, 1.548
1218865, -39.01538, 175.75455, 1997/12/23 03:27:07.6, 5, 2.658
1219773, -39.0184, 175.76706, 1997/12/23 03:48:05.5, 5, 2.171
1219811, -39.01933, 175.74709, 1997/12/28 00:17:17.8, 5, 2.149

data by geonet. map by google maps. plots by highace using GPS Visualizer

1996 Rotoaira/Rotopounamu quakes

In 1996 there were 117 earthquakes in the Rotoaira/Rotopounamu area.
There were two main swarms, one on the 10-11th February and another larger swarm between March 6th and 10th. A smaller swarm occurred on April 6th, located between Otukou and Lake Rotoaira near the Mangatipua Stream, and another on 2nd September at the southern base of Mt Tihia near the Te Ponanga Saddle Rd with 4 events between 1.933 and 2.484 ML.
The largest quake of 1996, a 3.407 ML at 5km deep, was also located beneath the Te Ponanga Saddle Rd west of Lake Rotopounamu on the 11th September at 07:59:10.4 UTC (marked on the map as a purple coloured orb)
The deepest quake of 1996 was a 3.205 ML, 93km deep, on 24th October at 00:45:28.2 beneath the Mangatipua Stream (marked on the map as a magenta coloured orb)


On 10th-11th February there was a swarm of 17 events, located in two clusters, 4 events to the NE of Otukou near the Wairehu Stream and another cluster of 12 events along the southern base of Mt. Tihia in a W- SE direction towards Onepoto Craters and lake Rotopounamu. There was one isolated event, a 1.119ML just inland from the western shore of Lake Rotaira.
REF, LAT, LONG, TIME, DEPTH, MAG
937638, -39.02861, 175.66931, 1996/02/10 23:32:52.1, 12, 2.006
923638, -39.0256, 175.73431, 1996/02/10 23:39:25.6, 5, 0.992
923639, -39.01673, 175.6933, 1996/02/10 23:53:09.5, 5, 1.54
923641, -39.01591, 175.69786, 1996/02/10 23:55:43.0, 5, 1.441
923645, -39.01502, 175.69019, 1996/02/11 00:03:54.9, 5, 1.174
936690, -39.0246, 175.6624, 1996/02/11 00:45:19.1, 5, 1.109
912166, -39.03944, 175.72899, 1996/02/11 01:55:12.3, 5, 1.15
923658, -39.02279, 175.71594, 1996/02/11 01:59:25.0, 5, 1.051
937634, -39.05784, 175.69357, 1996/02/11 02:17:49.3, 5, 1.119
912424, -39.01645, 175.6982, 1996/02/11 02:19:51.7, 5, 1.499
923659, -39.01617, 175.70976, 1996/02/11 02:29:02.4, 5, 1.277
923661, -39.01951, 175.69685, 1996/02/11 02:33:56.5, 5, 1.282
923662, -39.02448, 175.6657, 1996/02/11 02:50:52.0, 5, 1.066
923666, -39.0333, 175.72867, 1996/02/11 03:29:34.9, 5, 1.148
911977, -39.01785, 175.69403, 1996/02/11 03:55:06.8, 5, 1.186
923669, -39.02724, 175.70969, 1996/02/11 04:00:58.9, 5, 1.109
911768, -39.02007, 175.6682, 1996/02/11 04:06:21.1, 9, 1.508


Two further events in February;
947764, -39.03692, 175.66048, 1996/02/15 22:43:19.8, 5, 1.087
925164, -39.03401, 175.6815, 1996/02/16 01:11:15.9, 5, 1.107

A larger swarm of 46 events occurred on 6th –10th March, again in two defined clusters, this time either side of Lake Rotoaira.
The main cluster around and SE of Mangatipua Stream and east towards the lake. The other cluster, which all occurred on the 7th March, in a NW-SE line from the mouth of the Mangamutu Stream, through south of Motuopuhi Island to the southern flanks of Onepoto Craters.


REF, LAT, LONG, TIME, DEPTH, MAG
957814, -39.05569, 175.66975, 1996/03/06 17:18:09.5, 5, 1.293
950627, -39.04301, 175.69096, 1996/03/06 17:50:35.4, 5, 1.235
953182, -39.04982, 175.66922, 1996/03/06 18:51:52.8, 5, 1.545
952600, -39.05534, 175.67009, 1996/03/06 20:19:39.8, 5, 1.719
948286, -39.0548, 175.67216, 1996/03/06 21:12:40.2, 5, 1.696
952878, -39.05288, 175.68423, 1996/03/06 21:56:10.9, 5, 1.484
952353, -39.05645, 175.67538, 1996/03/06 22:14:36.5, 5, 1.471
953195, -39.0435, 175.72214, 1996/03/06 22:24:19.3, 5, 1.512
953196, -39.0533, 175.6814, 1996/03/06 22:26:03.6, 5, 1.618
953197, -39.04825, 175.67526, 1996/03/06 22:31:29.8, 5, 1.358
953198, -39.04735, 175.69803, 1996/03/06 22:33:54.1, 5, 1.306
948287, -39.0549, 175.70351, 1996/03/06 23:07:48.6, 5, 1.106
948288, -39.04755, 175.66273, 1996/03/06 23:34:36.2, 5, 1.099
948823, -39.05036, 175.66916, 1996/03/06 23:38:30.2, 5, 1.146
948289, -39.04657, 175.69395, 1996/03/06 23:45:55.8, 5, 1.285
948824, -39.03056, 175.69633, 1996/03/07 00:17:40.8, 5, 1.595
949291, -39.04553, 175.69412, 1996/03/07 00:33:53.7, 5, 1.726
953203, -39.04905, 175.69452, 1996/03/07 00:53:55.6, 5, 1.39
953204, -39.04906, 175.73198, 1996/03/07 01:18:13.3, 5, 1.082
948963, -39.04869, 175.69569, 1996/03/07 01:28:11.7, 5, 1.506
953209, -39.05787, 175.67584, 1996/03/07 01:58:11.5, 5, 1.445
957837, -39.04861, 175.675, 1996/03/07 03:23:40.2, 5, 1.53
953211, -39.05017, 175.68628, 1996/03/07 03:47:43.5, 5, 1.264
953052, -39.05051, 175.6642, 1996/03/07 05:08:24.6, 5, 1.113
948307, -39.05553, 175.67497, 1996/03/07 06:30:34.6, 5, 1.871
953220, -39.03632, 175.70859, 1996/03/07 08:02:37.2, 5, 1.418
953221, -39.03467, 175.70055, 1996/03/07 08:08:25.5, 5, 1.279
952563, -39.0432, 175.72237, 1996/03/07 08:30:58.7, 5, 2.394
953225, -39.03147, 175.69386, 1996/03/07 08:35:00.3, 5, 1.54
953229, -39.04485, 175.68433, 1996/03/07 08:50:16.5, 5, 1.355
957857, -39.04119, 175.69211, 1996/03/07 09:09:42.8, 5, 1.636
953231, -39.03772, 175.70955, 1996/03/07 09:31:40.2, 5, 1.615
952993, -39.04478, 175.69077, 1996/03/07 10:08:07.7, 5, 1.05
953238, -39.05319, 175.6864, 1996/03/07 15:18:31.1, 5, 0.816
953247, -39.05367, 175.66426, 1996/03/07 17:35:53.5, 5, 2.068
952565, -39.05915, 175.66182, 1996/03/07 23:46:35.3, 5, 1.844
952566, -39.05013, 175.68022, 1996/03/07 23:59:05.4, 5, 2.41
952312, -39.05874, 175.67891, 1996/03/08 00:07:22.0, 5, 0.848
936766, -39.04675, 175.66852, 1996/03/08 00:53:24.5, 5, 3.089
952512, -39.04497, 175.66173, 1996/03/08 07:09:55.5, 5, 0.888
953392, -39.04987, 175.66342, 1996/03/08 07:15:24.0, 5, 0.679
953443, -39.04786, 175.68758, 1996/03/09 03:29:33.3, 5, 1.253
936811, -39.04954, 175.67862, 1996/03/09 04:25:31.3, 5, 1.538
950409, -39.05759, 175.67485, 1996/03/10 06:29:44.4, 5, 1.661
955834, -39.05603, 175.67947, 1996/03/10 19:12:03.8, 5, 1.249
955838, -39.05365, 175.6855, 1996/03/10 20:00:13.8, 5, 1.284

REF, LAT, LONG, TIME, DEPTH, MAG
955896, -39.04899, 175.68083, 1996/03/13 11:05:08.8, 5, 1.27
950970, -39.0425, 175.6768, 1996/03/13 11:09:19.8, 5, 0.987
955237, -39.04534, 175.66159, 1996/03/15 09:39:00.3, 5, 1.229
955983, -39.05487, 175.66878, 1996/03/15 13:29:53.8, 5, 1.951
957226, -39.05151, 175.71315, 1996/03/21 12:11:21.3, 12, 1.83
961183, -39.01884, 175.73268, 1996/04/03 10:10:47.8, 5, 1.706
961493, -39.04962, 175.66969, 1996/04/05 15:46:14.6, 7, 2.555
961494, -39.04642, 175.67661, 1996/04/05 16:08:03.5, 5, 2.163

A small swarm occurred on April 6th, located between Otukou and Lake Rotoaira near the Mangatipua Stream with 7 events between 0.777 and 2.228 ML.

960907, -39.04501, 175.66116, 1996/04/06 06:19:01.1, 5, 0.808
968441, -39.03731, 175.67366, 1996/04/06 06:19:52.5, 5, 0.777
961495, -39.0154, 175.71786, 1996/04/06 06:37:09.0, 5, 2.228 (not shown, located 6km to the NE)
960488, -39.04432, 175.66663, 1996/04/06 06:44:27.3, 5, 1.066
958413, -39.04175, 175.67628, 1996/04/06 10:17:27.2, 5, 1.541
978592, -39.03807, 175.67316, 1996/04/06 10:17:35.9, 5, 1.244
962272, -39.04218, 175.6712, 1996/04/06 10:20:41.7, 5, 0.836
962273, -39.04499, 175.66402, 1996/04/06 10:21:07.9, 5, 0.99


Rest of the year;
960494, -39.04263, 175.6871, 1996/04/07 05:33:38.5, 12, 1.463
983108, -39.01571, 175.69299, 1996/04/20 22:34:32.2, 5, 1.308
983111, -39.03248, 175.66951, 1996/04/21 00:37:16.4, 5, 1.189
983125, -39.02397, 175.69971, 1996/04/21 14:55:30.2, 12, 1.246
983127, -39.02998, 175.67125, 1996/04/21 15:00:30.7, 5, 1.578
983152, -39.05568, 175.6774, 1996/04/22 04:02:45.0, 5, 2.568
983155, -39.05792, 175.68333, 1996/04/22 06:05:23.4, 5, 1.475
982484, -39.04479, 175.68715, 1996/04/29 13:14:07.2, 5, 2.161
992763, -39.0414, 175.69342, 1996/05/14 23:33:20.6, 5, 1.279
990205, -39.05982, 175.70432, 1996/05/18 12:54:08.1, 5, 1.693
1029608, -39.04441, 175.73506, 1996/07/31 05:44:40.2, 5, 1.903
1031479, -39.03743, 175.72649, 1996/08/21 16:13:51.6, 5, 1.717
1030219, -39.02137, 175.7137, 1996/08/31 09:15:11.9, 5, 1.685
1034403, -39.01943, 175.69377, 1996/09/02 16:47:11.6, 12, 2.071
1034976, -39.02088, 175.69984, 1996/09/02 17:02:13.5, 12, 2.001
1033042, -39.01799, 175.71065, 1996/09/02 17:19:20.9, 8, 2.484
1033535, -39.0258, 175.7021, 1996/09/02 17:28:40.1, 12, 1.933
1037455, -39.0312, 175.76707, 1996/09/05 11:12:02.9, 5, 1.606
1037582, -39.0163, 175.71257, 1996/09/05 17:26:58.9, 5, 1.693
1037467, -39.03418, 175.68803, 1996/09/06 19:54:33.1, 5, 1.477
1034946, -39.01736, 175.70081, 1996/09/11 02:55:45.6, 5, 2.11
1033837, -39.0195, 175.72639, 1996/09/11 07:59:10.4, 5, 3.407
1037399, -39.0279, 175.73422, 1996/09/12 03:57:18.5, 5, 2.077
1040716, -39.01957, 175.69637, 1996/09/20 02:28:43.3, 5, 1.503
1041526, -39.03315, 175.69412, 1996/10/02 07:46:03.8, 12, 2.317
1042569, -39.03596, 175.69998, 1996/10/02 07:47:10.0, 12, 2.541
1049283, -39.03, 175.70929, 1996/10/15 11:45:18.7, 12, 1.701
1049284, -39.05218, 175.70291, 1996/10/15 17:58:02.7, 12, 2.42
1049186, -39.04803, 175.68341, 1996/10/24 00:45:28.2, 93, 3.205
1076747, -39.01705, 175.68843, 1996/11/09 13:47:53.0, 5, 2.231
1054393, -39.02523, 175.71738, 1996/11/09 14:01:07.7, 5, 1.318
1077057, -39.01851, 175.69572, 1996/11/09 15:27:32.9, 5, 1.296
1055254, -39.01506, 175.68777, 1996/11/10 13:23:51.0, 11, 1.755
1054641, -39.0174, 175.71072, 1996/11/10 13:45:10.8, 5, 1.348
1084852, -39.01553, 175.74504, 1996/12/15 12:00:44.7, 5, 1.853
1070854, -39.02732, 175.7281, 1996/12/28 17:56:42.5, 5, 1.855

data by geonet. map by google maps. plots by highace using GPS Visualizer