Hal Murray wrote:
[Chile quake]
Graph of position (3 meters!):
http://ivsopar.obspm.fr/earth/tigo
3 meters in one direction and 60 in another.
Just to make sure we are all on the right track, the scale on the graph is
cm, so the motion was 300 cm West and 60 cm South.
I may have confused things by translating 300 cm to 3 m. My head doesn't
normally use cm but I can quickly grasp 3 meters.
That's not all that big a displacement for that size earthquake,
although the location is a ways from the epicenter.
Here's a map:
http://www.gpsworld.com/government/mapping/news/map-chilean-earthquake-coseismic-displacement-derived-gps-data-9667
The local 1992 Landers quake (mag 7+) had a displacement of some 5-6
meters horizontally and 2m vertically. Imagine sitting in a car on a 2
lane road, and 30 seconds later, the road in front of you is displaced
the width of the road, so you're looking at no road. This one has been
studied a lot because there's a whole raft of precision geodetic
measuring points near it, as well as experimental satellite
interferometric SAR data, etc.
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