A magnitude 3.7 earthquake was recorded in the Bay Area on Friday morning, according to the United States Geological Survey.

An earthquake with a preliminary magnitude of 3.7 shook San Francisco on Friday morning, the U.S. Geological Survey said. The quake struck about three miles northwest of the San Francisco Zoo at 7:02 a.

A preliminary 3.7 magnitude earthquake struck Friday morning in San Francisco, according to the United States Geological Survey.

While Friday morning's 3.7 earthquake and its aftershocks near the San Andreas Fault may have been small, a USGS scientist says it is a reminder to stay prepared.

"The greatest loss in the city of San Francisco was principally the result of the fire, which was rendered uncontrollable owing to the wrecking of the water-supply system by the earthquake," said one of the reports.

A 3.7-magnitude earthquake shook the San Francisco Bay Area in Northern California, the U.S. Geological Survey reported. The about 5-mile deep quake hit about three miles northwest from the San Francisco Zoo, at 7:02 a.m. on Friday, Jan. 10, according to the USGS.

The San Francisco Peninsula shook three times in less than four hours on Friday, with all the earthquakes centered off Ocean Beach. The quakes of magnitude 3.6, 2.5 and 2.9 had epicenters 3 to 4 miles northwest of the San Francisco Zoo, according to the U.S. Geological Survey.

SAN FRANCISCO - Several earthquakes struck near the San Francisco Zoo on Friday. The first, magnitude 3.6, downgraded from a 3.7, hit just after 7 a.m. The earthquake hit about 3 miles east of the zoo, according to the USGS. The quake had a depth of 8.4 kilometers, the agency said.

An earthquake with a preliminary magnitude of 3.7 shook San Francisco on Friday morning, the U.S. Geological Survey said. The quake struck about three miles northwest of the San Francisco Zoo at 7:02 a.m. It had a depth of five miles, USGS said.

A magnitude 3.7 earthquake hit Concord Sunday morning, the United States Geological Survey said. The quake hit between Willow Pass and Clayton roads, near 6th Street, around 8:49 a.m. According to the USGS, the earthquake had a depth of nearly 9 miles.

SAN FRANCISCO (KGO) -- A 3.7 preliminary magnitude earthquake struck off the coast of San Francisco Friday morning, according to the U.S. Geological Survey. The USGS says it was about three miles ...

An earthquake with a 3.7 magnitude struck just off the coast of San Francisco, according to data from the U.S. Geological Survey. This is a breaking news update. More information to be added as available.