U.S. Geological Survey News

Strong Quake Shakes Small Town in Central Alaska

The U.S. Geological Survey reports that a magnitude-4.8 earthquake hit central Alaska on over the weekend. The agency says the quake’s epicenter is about 60 miles west of the town of Talkeetna, which has an estimated population of 900, and …

West Coast Towns Vulnerable to Tsunamis Consider Ways to Save Lives

Bracing for a tsunami like the one that devastated Japanese communities during a 2011 mega-earthquake, coastal communities from British Columbia to California have been grappling with how to protect people from a similar catastrophe. One of those towns is constructing …

Earthquake Swarm Around San Francisco Persists

The U.S. Geological Survey reports that in the last two weeks more than 400 small earthquakes have hit a city east of San Francisco. KNTV reported that the city of San Ramon appears to have broken an earthquake record with …

Study: Larger Oklahoma Quakes Caused by Industrial Activity

A sharp rise in earthquakes in Oklahoma in the past 100 years is likely the result of industrial activities in the energy-rich state, such as oil and natural gas production, a new study suggests. The paper by the U.S. Geological …

99.9 Percent Probability of L.A.-Area Earthquake: Study

There is a 99.9 percent chance of a magnitude-5 or greater earthquake striking within three years in the greater Los Angeles area, where a similar sized temblor caused more the $12 million in damage last year, according to a study …

Quakes Still Rattling Area East of San Francisco

A series of small earthquakes that have struck east of San Francisco since last week continue to rattle the region. KGO-TV reported Tuesday that the largest one so far, a magnitude-3.5 temblor struck around 4:20 p.m. Monday, according to the …

Small Quake Shakes Big Bear Area in Southern California

A small earthquake has shaken the Big Bear Lake area of the San Bernardino Mountains east of Los Angeles. The U.S. Geological Survey says the 6:55 a.m. Wednesday tremor had a magnitude of 3.6. It was centered 3 miles south …

Dual Magnitude 4.0 Earthquakes Shake Northern Oklahoma

The U.S. Geological Survey has recorded several earthquakes in northern Oklahoma, including two of magnitude 4.0. No damage or injuries are reported from the Tuesday and Wednesday temblors. The USGS reports a 4.0 magnitude earthquake one mile northwest of Cushing …

Small Quake Hits Washington, But No Reports of Damage

The U.S. Geological Survey says a 4.0-magnitude earthquake hit the eastern part of the Seattle, Wash. area over the weekend. But there are no reports of damage. The agency says the earthquake struck at 3:22 p.m. and was centered in …

4.0 Magnitude Quake Rattles Northern Oklahoma

An earthquake has shaken parts of northern Oklahoma near the Kansas border. The U.S. Geological Survey says the preliminary 4.0 magnitude earthquake was recorded at about 4:25 p.m. on Aug. 14 about 3 miles west-northwest of Medford in Grant County. …