U.S. Geological Survey News

Small Quake Struck Pacific Ocean off Oregon Coast

A magnitude 4.5 earthquake struck in the Pacific Ocean off the coast of Oregon. The U.S. Geological Survey confirmed. The agency reported the earthquake hit a spot 286.5 miles west of Yachats at 7:40 p.m. on Saturday. Yachats is a …

3.7M Earthquake Hits Northern California

The U.S. Geological Survey confirmed a 3.7 preliminary magnitude earthquake rattled the small city of Piedmont in northern California. The USGS says the tremor occurred on Wednesday at 4:42 a.m. The impacts of the earthquake were not immediately known. Earthquakes …

2 Small Earthquakes Strike Western Colorado

Two mild earthquakes struck western Colorado, the U.S. Geological Survey confirmed. The quakes hit early Tuesday but likely weren’t strong enough to cause any damage. The quakes were both just north of Glenwood Springs. The USGS says a 3.4 quake …

28 Streamflow Records Broken in Carolinas by Hurricane Florence Floods

A federal report shows Hurricane Florence broke records in a key flooding measure at more than two-dozen stream gauges in the Carolinas. The U.S. Geological Survey released a report Nov. 13 on streamflow, which measures how much water passes a …

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 Shakes North Alabama

No damage is being reported after a minor earthquake rattled northern Alabama. The U.S. Geological Survey says a magnitude 2.1 earthquake happened around 7:22 a.m. Monday about 15 miles north of Huntsville near the Tennessee state line. The Geological Survey …

4.0 Mag Earthquake and Aftershock Shake Parts of Central Oklahoma

The U.S. Geological Survey says a 4.0 magnitude earthquake has shaken parts of central Oklahoma, but there were no immediate reports of damage. The USGS says the earthquake was recorded at 3:56 p.m. about 7 miles (12 kilometers) north of …

2014 Napa Quake Could be Linked to Groundwater Changes, Study Shows

Research suggests the magnitude 6.0 earthquake that rocked California wine country in 2014 may have been caused by an expansion of Earth’s crust because of seasonally receding groundwater under the Napa and Sonoma valleys. The vineyard-filled valleys flank the West …

Study Finds Possible Deep, Unmapped Faults in Oklahoma

Scientists may have found previously unmapped faults in Oklahoma that could be contributing to a sharp increase in induced earthquakes in the state, according to a report on a study that used magnetic imaging to explore the rock formations below …