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* Tuesday, April 07, 2009 at 04:23:34 UTC
* Tuesday, April 07, 2009 at 04:23:34 PM at epicenter
Location 46.141°N, 151.420°E
Depth 39.1 km (24.3 miles)
Region KURIL ISLANDS
Distances 295 km (180 miles) ENE of Kuril'sk, Kuril Islands
615 km (380 miles) SW of Severo-Kuril'sk, Kuril Islands, Russia
1515 km (940 miles) NE of TOKYO, Japan
7140 km (4440 miles) NE of MOSCOW, Russia
Location Uncertainty horizontal +/- 9.3 km (5.8 miles); depth +/- 13.8 km (8.6 miles)
Parameters NST=166, Nph=166, Dmin=730.3 km, Rmss=0.7 sec, Gp= 50°,
M-type=teleseismic moment magnitude (Mw), Version=6
* USGS NEIC (WDCS-D)
Event ID us2009fdak
The Kuril Islands form part of the ring of tectonic instability encircling the Pacific ocean referred to as the Ring of Fire. The islands themselves are summits of stratovolcanoes that are a direct result of the subduction of the Pacific Plate under the Okhotsk Plate, which forms the Kuril Trench some 200 km east of the islands. The chain has around 100 volcanoes, some 40 of which are active, and many hot springs and fumaroles. There is frequent seismic activity, including an earthquake of magnitude 8.3 recorded on November 15, 2006, which resulted in tsunami waves up to 5 ft reaching the California coast.
Originally posted by blackhatchet
The magnitude has been revised...