Thread: Teachable Moment- Magnitude 6.7 Offshore Bio-Bio, Chile

A large aftershock from the February 27th Magnitude 8.8 earthquake
occurred on the subduction zone plate boundary at the Peru – Chile
Trench where the oceanic Nazca Plate subducts beneath the continental
South American Plate. This is one of the largest of over 200
aftershocks larger than Magnitude 5 that have occurred in the region.
A short 5 slide PPT has been prepared with additional details about
the aftershocks and a discussion of the recent reports of cities in
Chile moving to the west.

The ppt and animation can be downloaded from:

http://www.iris.edu/hq/retm

Bob Butler and Tammy Bravo
University of Portland, IRIS E&O
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