4.7 California Earthquake Strikes; No Fatalities Reported

An earthquake hit southern California late Monday was estimated to be a 4.7 in magnitude, according to the California Institute of Technology in Pasadena. It was widely felt and produced several aftershocks, but no fatalities were reported.

The epicenter was a little over 10 miles from the Riverside County desert community of Anza, about 100 miles southeast of Los Angeles. Residents from downtown L.A. to Mexico reportedly felt the temblor. The quake, which was initially ruled as a 5.2 before being downgraded, was the biggest to strike the Los Angeles area since 2010.

There have been at least 100 aftershocks, according to the U.S. Geological Survey. The largest one, magnitude 3.2, struck less than a minute after the quake. The rest of them were barely perceptible, at a magnitude of less than 2.5.

No injuries or major damage were reported, but the temblor revived usually below-the-surface fears of the Big One in California, which analysts say is overdue for a massive earthquake.

Some people reported being alarmed. Shannon Haber from the L.A. Unified School District's high rise in Westlake said she got scared.

"There was small shaking, and it made me nervous because I am 23 floors up."

Spanish tennis prodigy Rafael Nadal was playing at the Indian Wells tournament near Palm Springs, about 30 miles from the epicenter and said he felt alarmed, particularly because he had never experience any shake before.

L.A. is on the so-called "Ring of Fire," which circles the Pacific and has produced a number of devastating earthquakes, including Japan's March 2011 quake and tsunami.