ruaumoko: 1985 Mt. Tihia/ Tokaanu quakes

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1985 Mt. Tihia/ Tokaanu quakes

Only 1 event in the Mt. Tihia/Tokaanu area in 1985, a 3.48ML located west of the Hipaua Thermal Area on the 12th January.
Mt. Tihia/Tokanaau quakes 1985

REF, LAT, LONG, TIME, DEPTH, MAG
1566657, -38.96, 175.72, 1985/01/12 09:48:19.0, 4, 3.48

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

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Earthquake Swarms

Earthquake swarms are events where a local area experiences sequences of many earthquakes striking in a relatively short period of time. The length of time used to define the swarm itself varies, but the United States Geological Survey points out that an event may be on the order of days, weeks, or months. They are differentiated from earthquakes succeeded by a series of aftershocks by the observation that no single earthquake in the sequence is obviously the main shock. Earthquake swarms are one of the events typically preceding eruptions of volcanoes

Earthquake Aftershocks

An aftershock is an earthquake that occurs after a previous earthquake (the main shock). An aftershock is in the same region of the main shock but is always of smaller magnitude strength. If an aftershock is larger than the main shock, the aftershock is redesignated as the main shock and the original main shock is redesignated as a foreshock. Aftershocks are smaller earthquakes formed as the crust around the displaced fault plane adjusts to the effects of the main shock

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