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4.0 earthquake strikes California border region

June 24, 2010 | 11:17 am

A 4.0 earthquake rattled the California-Mexico border Thursday, likely the latest of thousands of aftershocks from the Easter Sunday earthquake that rocked Mexicali.

According to the U.S. Geological Survey, the quake hit at 10:07 a.m. about two miles southeast of Ocotillo, Calif. That town had experienced a swarm of minor quakes last week, including a few greater than 4.0 magnitude.

There were no reports of damage or injuries, but the quake was felt nearby.

A NASA report released Wednesday showed that the 7.2 Mexicali earthquake on April 4 was so powerful that it shifted the Earth's crust up to 10 feet in Mexico. The quake also shifted the crust 31 inches near Calexico. The data for the California shift came from NASA satellites, and information about the Mexico shift came from European and Japanese satellites. Both sets of data were analyzed by NASA's Jet Propulsion Laboratory.

The April 4 quake killed two people and collapsed numerous buildings in the Mexicali area. There was more than $90 million in damage in California, mostly in Imperial County.

-- Shelby Grad

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