20 Mar '12, 10pm

Magnitude 7.4 Earthquake Strikes Oaxaca, Mexico [image] #NASA

Magnitude 7.4 Earthquake Strikes Oaxaca, Mexico [image] #NASA

A strong earthquake, measured at magnitude 7.4, struck southern Mexico on March 20, 2012. The earthquake’s epicenter was in the state of Oaxaca, near the village of San Juan Tepeltlapa. According to the USGS, the earthquake was caused by the convergence of the Cocos and North American tectonic plates. The region’s rugged topography, shown in this shaded relief map, suggests that it is active tectonically. Green areas, such as the coarse of the Rio La Mariscala, are low elevation. Yellow indicates high elevation—over 1,100 meters (3,600 feet) in the mountains immediately west of the epicenter. Linear features running west-northwest through the image may be evidence of faults. The elevation data were collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite. References Microsoft Corporation. (2012). Bing Maps. Accessed ...

Full article: http://earthobservatory.nasa.gov/NaturalHazards/view.php?...

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