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Monthly Archives: February 2013
another large aftershock M7
Here is a large aftershock M7 near the island closest to the mainshock M8. USGS site page Here is a summary poster of the tectonics in the region: USGS site page USGS poster (68MB pdf)
Posted in geology, research, subduction, tsunami
Tagged subduction
Interesting aftershock to the M8 Santa Cruz Isles earthquake
Here is an aftershock that appears to be past the end of the subduction zone. The people who work in this region have not extended the subduction zone this far. I look forward to seeing the focal mechanism for this … Continue reading
Posted in geology
M8 Santa Cruz Isles earthquake tsunami hazard diminishing
At least for the west coast of the US and Hawaii, the tsunami hazard potential is diminishing. The tsuami watch for Hawaii has been removed and locally measured wave heights (Solomon Isles) are under 1 m. Locally destructive and dangerous. … Continue reading
M8 Santa Cruz Isles: tsunami measured
In California, an informational statement has been issued: PUBLIC TSUNAMI INFORMATION STATEMENT NUMBER 2 NWS WEST COAST/ALASKA TSUNAMI WARNING CENTER PALMER AK 625 PM PST TUE FEB 5 2013 …THIS IS A TSUNAMI INFORMATION STATEMENT FOR ALASKA/ BRITISH COLUMBIA/ WASHINGTON/ … Continue reading
M8 in the Santa Cruz Islands region (Vanuatu subduction zone, New Hebrides trench)
M8 Earthquake following a couple weeks of increased seismic activity in the region. located at the northern end of this subduction zone. Here is a map of the subduction zone: Here is the USGS web page for the earthquake. Here … Continue reading
Posted in geology, tsunami
Tagged subduction, tsunami