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Earthquake shakes the San Francisco Bay Area

An earthquake rattled northern California at 10:40 A.M. (Pacific Daylight Time) today, centered 11 miles (18 kilometers) north of the city of Morgan Hill and 16 miles (25 kilometers) east by southeast of San Jose. The U.S. Geological Survey (USGS) assessed the initial magnitude of the quake as 4.3 on the Richter scale.

According to the San Francisco Chronicle, the earthquake could be "felt throughout the Bay Area and beyond from Santa Rosa and Napa on the north, Soledad on the south, and Groveland in Tuolumne County on the east." The CBS affiliate in Sacramento reported that the "Morgan Hill police dispatcher said there were no immediate reports of injuries or damage"; the dispatcher told the Associated Press that the tremors were "short, but strong."

Costa Rica rocked by earthquake

Residents of San Jose, Costa Rica, took to the streets today just after lunch as an earthquake registering 6.1 on the Richter scale shook the capital city. Windows broke, walls cracked and landslides were triggered in the countryside, but so far no casualties have been reported.

The epicenter of the quake at 1:21 P.M. local time was just 20 miles (35 kilometers) northwest of the capital, the U.S. Geological Survey reports, and originated 8.6 miles (14 kilometers) beneath Earth's surface. Aftershocks have been reported throughout the afternoon.

Costa Rica is located in the middle of Central America and makes up part of the "Ring of Fire" circling the Pacific Ocean; it is home to several active volcanoes, including Poas, which erupted just last year and Arenal, which erupted in 2007. A similar strength quake in 1910 killed at least 700 people in the city of Cartago; more recently a temblor measuring 6.4 shook the capital in November 2004, killing eight.


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