USGS News

Massive Earthquake Shakes Alaska, Hitting Roads And Bridges Hard

A powerful earthquake jolted southern Alaska on Friday morning, buckling roads, disrupting rush-hour traffic and jamming telephone service in and around Anchorage, the state’s largest city, but there were no reports of serious injuries. The 7.0 magnitude quake struck about …

Small Quake Rattles West Central California Valley

A magnitude-4.0 earthquake rattled the rural west side of the San Joaquin Valley early, the U.S. Geological Survey confirmed. No damages were reported. The USGS reported the temblor occurred at 5:07 a.m. on Tuesday and was centered 6 miles northwest …

West Coast Quake Warning System up and Running

Automated alerts from the fledgling West Coast earthquake early warning system are ready to be used broadly by businesses, utilities, schools and other entities but not for mass public notification, officials said Wednesday. “We’re making a large change from a …

Small Temblor Shakes Inland Southern California Area

Some inland Southern California communities received an early morning jolt from a minor earthquake, the U.S. Geological Survey confirmed. The USGS says the magnitude-3.4 tremor occurred at 5:44 a.m. Thursday. The quake was centered 2 miles southwest of San Bernardino …

Small Earthquake Triggered by Minor KIlauea Explosion

A small explosion on the summit of Kilauea volcano has triggered an earthquake but there are no reports of damage. The U.S. Geological Survey says the magnitude 5.2 earthquake happened around 4:50 a.m. Saturday on the Big Island and felt …

Hawaii Volcano Lava Destroys 117 Homes on Big Island

Lava from Hawaii’s erupting Kilauea volcano has destroyed more than 100 homes in a rural Big Island district. As of Monday, lava burned down 117 homes, said Hawaii County spokeswoman Janet Snyder. On Friday, the count was at 87 homes. …

USGS: M3.5 Quake Hit San Francisco Bay Area

A small earthquake has rattled the San Francisco Bay Area but there are no immediate reports of damage or injuries, the U.S. Geological Survey confirmed. The USGS said a 3.5-magnitude temblor struck at 7:18 p.m. Monday. The quake was centered …

USGS: M3.3 Quake Rattles Southern California Desert

A magnitude 3.3 earthquake has rattled the Southern California desert, the U.S. Geological Survey confirmed. The USGS said the quake on Saturday was centered about 27 miles northwest of El Centro in the desert near the Arizona border. It struck …

3 Small Earthquakes Occurred off Southern California Ocean

Several minor earthquakes well offshore have lightly shaken some Southern California coastal communities, according to the U.S. Geological Survey. The quakes occurred before dawn Tuesday near the southern end of San Clemente Island, more than 60 miles off the mainland. …

M3.3 Magnitude Rattles Shakes San Francisco Bay Area

A minor earthquake has shaken the San Francisco Bay area, the United States Geological Survey confirmed. The USGS says an earthquake with a preliminary magnitude of 3.3 struck just before 5 a.m. on Monday. The epicenter of the quake was …