4.5 Earthquake Shakes San Francisco Bay Area

A magnitude 4.5 earthquake was widely felt across the San Francisco Bay Area on Monday night. The Los Angeles Times reports moderate shaking was felt at 10:33pm with the epicenter in the Pleasant Hill and Walnut Creek areas. The US Geological Survey says weak shaking was felt in San Francisco, Oakland, and San Jose. Scientists say they don't expect any major structural damage, the AP reports. Keith Knudsen, USGS geologist and deputy director of the agency's Earthquake Science Center, tells the Times that the earthquake had a preliminary depth of about 9 miles underneath the surface, fairly deep for this part of the world. (More earthquake stories.)