Alaska was jolted by a 7.3-magnitude earthquake on Wednesday afternoon. Tsunami information was not immediately available.

San Francisco has assigned a seismic hazard score to hundreds of city-owned buildings. Some key ones, including a jury duty site, might fare badly in a big quake.

Along San Francisco's Embarcadero, a groundbreaking experiment is revealing promising results. At the aging seawall, during low tide, a diver with the Port of San Francisco carefully removed nine ...

A tsunami warning is in effect along parts of Alaska’s lightly populated southern coast after a 7.3 magnitude earthquake.

A late-night 2.9-magnitude earthquake shook the San Francisco Bay Area in California, the U.S. Geological Survey reported. The six-mile deep quake hit three miles from Fairview, which is about a ...

Experts claim that the next big US quake will also occur along the San Andreas fault, where many of the biggest earthquakes in U.S. history have been recorded. In fact, the United States Geological ...

It is a new day, San Francisco. Literally and figuratively, according to Mayor Daniel Lurie’s 5 a.m. remarks at the 119th commemoration of the 1906 San Francisco earthquake. “We’ve gone through some ...

In California, where the next “Big One” is an always-looming threat, some lessons learned from the 1925 Santa Barbara quake ...

EXTENSION: Research how the federal government responded to the April 1906 San Francisco earthquake and detail what precedents this set for future government responses to natural disasters.

So, for every magnitude 8, like the 1906 San Francisco earthquake, there are 10 Loma Prieta-sized earthquakes, and 100 Napa-sized earthquakes, and 1,000 magnitude 5 earthquakes.

An earthquake registering a magnitude of 3.7 shook part of the San Francisco Bay Area and people reported feeling a quick jolt. There were no immediate reports of injuries or major property damage.