A shake alert went out over the U.S. Geological Survey's early warning system on Dec. 4, warning that a 5.9 earthquake near Carson City in western Nevada could produce heavy shaking in the region. But moments later, the survey announced the alert, which was sent to people as far west as San Francisco, was a false alarm.

The U.S. Geological Survey is investigating how an “errant” report of a 5.9 magnitude earthquake was issued early Thursday morning.

Did you feel them? Several earthquakes struck south of the Bay Area on Black Friday. The strongest quake was a magnitude 3.4, according to the USGS, but came after two days of similar sized earthquakes in the area of Gilroy and San Juan Bautista.

A series of earthquakes struck off Indonesia within 24 hours between Friday and Saturday, highlighting the seismic risks that persist in one of the world’s most geologically active regions. The three earthquakes ranged in strength from a magnitude of 4.

An earthquake has hit the UK, with towns and cities across the country shaking due to the magnitude 3.4 tremor

ATHENS, Greece (AP) — Multiple earthquakes are rattling Santorini, a volcanic island in Greece, prompting authorities to dispatch rescuers with tents, a sniffer dog and drones, and to shut schools on four islands. Last week, scientists said they noticed ...