Earthquake in Chile

Magnitude 8.8

The epicenter was 325 Km (200 miles) south of Santiago

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Saturday, February 27, 2010 at 03:34:14 AM at epicenter 

At least 700 people killed, many injured and at least 500,000 houses damaged by the earthquake and tsunami in the Concepcion-Valparaiso area. Felt in much of Chile and Argentina. Also felt in parts of Bolivia, southern Brazil, Paraguay, Peru and Uruguay. A Pacific-wide tsunami was generated and caused minor damage to boats and a dock in the San Diego area, California.
This earthquake occurred at the boundary between the Nazca and South American tectonic plates. The two plates are converging at a rate of 70 mm per year. The earthquake occurred as thrust-faulting on the interface between the two plates, with the Nazca plate moving down and landward below the South American plate. Coastal Chile has a history of very large earthquakes. Since 1973, there have been 13 events of magnitude 7.0 or greater. The February 27 shock originated about 230 km north of the source region of the magnitude 9.5 earthquake of May, 1960 -- the largest earthquake worldwide since the beginning of instrumental seismology at the beginning of the twentieth century. The giant 1960 earthquake spawned a tsunami that caused destruction on coasts throughout the Pacific Ocean basin. USGS