More than a million tiny earthquakes revealed in Southern California

Abundant data on little quakes can help scientists learn more about what triggers the big ones

Baja California, Mexico

COUNTING QUAKES  The magnitude 7.2 El Mayor-Cucapah earthquake triggered numerous aftershocks across much of Southern California when it struck Baja California, Mexico, in 2010. A new study has identified more than a million tiny quakes recorded by seismometers in the region from 2008 to 2017, including hundreds of previously unnoticed aftershocks from the 2010 quake.

Centro de Investigacion Cientifica y de Educacion Superior de Ensenada (CICESE) 

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