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Chile Earthquake Magnitude M7.8 Aftershock

Some computations from the hazard viewer.  This event is much closer to Iquique than the mainshock, probably more damage.

(Update  21:29 PDT: Magnitude now downgraded to 7.6)

Events and forecast map, together with selection circle.

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Chile Tsunami Should be Approaching Taiwan Now

From NOAA.  Posted at 15:33 on 4/2/2014

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Chile Earthquake filled an Old Gap

This slide is from a compilation by the IRIS consortium

 

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Chile Earthquake Seismic Gap

One of the theories about earthquake occurrence over the years is that seismic gaps develop between major and great earthquakes, and are eventually filled.  With that in mind, it is interesting to plot the approximate slip planes for both the M8.8 earthquake of 27 February, 2010, and today's M8.2 earthquake of April 1, 2014.

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Magnitude M8.2 and Tsunami, Iquique Chile, April 1, 2014

Earthquake in Chile with tsunami watch and warning.  Areas of the Pacific should take precausions, including Hawaii and Japan, among other areas.  Depth shallow, about 10 km.  Screenshot of earthquake location below, with forecast contours for M>6.5.  The forecast was computed at midnight last night - forecasts are updated every night at midnight California time.

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Is Earthquake Insurance Worth It?

We often get asked this question.  Here is one opinion after the recent March 28, 2014 Brea/La Habra (Los Angeles) California earthquake.

http://video.cnbc.com/gallery/?video=3000262924

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Magnitude 5.1 Earthquake Los Angeles, March 28, 2014

The earthquake occurred last night at about 9:09:42 pm PDT. Below are some screenshots and simple analysis of future earthquake risk taken from the Hazard Viewer.

The epicenter was closest to the Puente Hills mapped fault:

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M4.4 Earthquake near Los Angeles, CA March 17, 2014

(Updated 10:45 PDT 3/17/2014)

A moderate earthquake occurred this morning at 0625 am PDT.  It was centered at a location 9 km NNW of Westwood, CA, where the University of California at Los Angeles is located.  A screenshot from the Open Hazards Hazard Viewer is shown below:

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