Paul Earle, director of the USGS National Earthquake Information Center, told SFGATE that the alert was an “errant message from earthquake early warning system” and said the agency is investigating what triggered the bogus notification. The phantom quake briefly showed up on USGS feeds before being deleted.

A minor, 3.2-magnitude earthquake struck in the San Francisco Bay Area on Thursday, according to the United States Geological Survey. The temblor happened at 7:27 a.m. Pacific time about 2 miles southeast of San Ramon, Calif., data from the agency shows.

Just after 8 a.m., Bay Area residents received a MyShake alert warning of magnitude 5.9 quake hitting east of Carson City, Nevada, close to the Lake Tahoe region. The quake also appeared on the USGS map of latest earthquakes. But within minutes, the report of the quake disappeared from the USGS page.

A magnitude 3.3 earthquake shook the Santa Rosa area in Northern California, followed by an overnight series of aftershocks, the U.S. Geological Survey reported.

SAN FRANCISCO COUNTY, CA - on Thursday around midday, a 2.3 magnitude quake was registered close to San Francisco Zoo, according to the U.S. Geological Survey. A tremor shook the area at 12:09 p.m. The earthquake's epicenter was situated about 3 miles west ...

Just minutes after a minor earthquake shook the Bay Area, San Francisco officials demonstrated the city’s preparedness for a more serious natural disaster — with what they called the nation’s only dedicated emergency firefighting system. The ...

SAN FRANCISCO (KGO) -- The government shutdown is forcing changes to San Francisco's Fleet Week. Since 2011, the event has included a large-scale earthquake drill -- bringing together military and local agencies to test disaster response. But this year ...