| | |  Editorials | Environmental 
More Mexico-Centered Quakes Shake Border Region
 Andrew Kleske - San Diego Union-Tribune
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April 09, 2010
Several earthquakes in Mexico Thursday, including a 5.3 magnitude quake at 9:44 a.m., could be felt in San Diego.
Automated USGS seismographs indicate a magnitude 5.3 quake hit 30 miles south-southeast of Mexicali while a 4.5 magnitude quake hit about 18 miles west-southwest of Mexicali an hour earlier.
The epicenters are in the general area of the Cerro Prieto geothermal field, an area featuring a dormant volcano in an active continental rift between the San Andreas fault and a spreading ridge of the East Pacific Rise of the Gulf of California.
The quake is one of a string of thousands of quakes shaking the area this year. The Cerro Prieto area alone has witnessed dozens of small quakes of various magnitudes in the past week.
A 7.2 magnitude earthquake hit the same general area on Easter Sunday, triggering hundreds of aftershocks. Gov. Arnold Schwarzenegger was touring the city of Calexico, which was hard-hit by the Easter quake, just before today's big earthquake, according to a spokesperson.
Officials with San Diego police, San Diego County Sheriff's Department and the San Diego Fire-Rescue Department said they had received no immediate reports of damage from the latest quake. |
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