Swarm of Quakes Shakes San Diego Area

April 12, 2010
Boston Globe


SAN DIEGO — A cluster of moderate earthquakes near the US-Mexico border continued to rattle southern San Diego County one week after a magnitude-7.2 quake slammed the area.

The US Geological Survey said a magnitude-4.4 earthquake struck at 9:42 a.m. yesterday about 11 miles west of downtown Calexico. More than two dozen other quakes in the magnitude-3 range were also reported in the same area yesterday.

On Saturday, a magnitude-4.5 earthquake near the border rattled parts of Imperial and San Diego counties. The Geological Survey said that quake hit at 2:12 a.m. about 16 miles west southwest of Calexico. More than a dozen quakes above magnitude 3 hit later Saturday.

No damage or injuries have been reported.

Scientists say the increased seismic activity is normal following the magnitude-7.2 earthquake April 4. Officials say the Easter quake killed two people and caused an estimated $100 million in damage in California alone.

That temblor was the third strong quake to roil the Americas this year, after a magnitude-7 quake in Haiti killed 300,000 people and a magnitude-8.8 temblor in Chile killed 450.

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