Topo-Map of Chilean Coast showing the location of the M8.8 Earthquake and most of the Aftershocks
Posted by JAC on 3/2/2010, 6:45 am



The above topographic map shows the epicenter of the M8.8 megaquake and the area between the cities Santiago and Concepcion, the Chilean capital  and its 2nd largest city respectively, where most of the aftershocks occurred.

The red line marks the boundary line between the Nazca and South America Plates.

Nazca plate subducts South America Plate at a rate of 80 mm/year.  

Black circles also show the magnitude of the shocks.

Image Credit: NASA.

The area has experienced at least 13 events of magnitude 7.0 or greater since 1973.

The M8.8 shock on February 27 struck about 230 km north of the epicenter of the M9.5 earthquake that occurred in May, 1960 - world's largest instrumentally recorded quake which killed 1,655 people in southern Chile.

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Chilean earthquake hints at dangers of 'Big One' for USA - JAC, 3/1/2010, 7:23 am
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