[irised] M7.7 Chile Earthquake Rupture

[John Lahr]

Now that I'm home, I've moved the document describing the M7.7 Chile 
earthquake of November 14, 2007, to a more permanent 
location:  http://jclahr.com/science/psn/as1/index.html#Summary

I've also created a video describing the aftershock sequence from 
this event.  This was done using the program Camtasia to capture the 
sequence as it was being displayed by the Seismic Eruption program:
http://jclahr.com/science/psn/as1/chile07/chile2007/index.html

Based on the extent of the aftershock zone, the mainshock ruptured 
from the north to the south-southwest for a distance of about 150 
km.  At 3 km/second, which is a typical rupture propagation speed, 
the mainshock would have lasted 50 seconds.

Cheers,
John

#################################/ John C. Lahr
################################/ Emeritus Seismologist
###############################/ U.S. Geological Survey
==========================/ Central Region Geologic Hazards Team
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