Magnitude 4.2 Quake Jolts The Geysers, 2nd Similar-Strength Temblor There in 2 DaysThe United States Geological Survey says a quake with a preliminary magnitude of 4.2 struck at 12:34 p.m. Sunday near The Geysers in northern Sonoma County.
Magnitude 3.9 Earthquake Rattles Sonoma County Near Kincade Fire SaturdayA 3.9 earthquake rattled Sonoma County near the Geysers on Saturday morning, according to the U.S. Geological Survey.
July Ridgecrest Quakes Strained Dangerous SoCal Fault That Has Begun to MoveThe earthquakes that hammered the Southern California desert near the town of Ridgecrest last summer increased strain on a major nearby fault which has begun to move, according to a new study.
Crockett Fuel Tank Fire Raises Questions About Refineries On Fault LinesThe cause explosion and fire at the NuStar Energy facility in Crockett is still unknown, but on Tuesday it was revealed that the Monday night earthquake in Pleasant Hill was part of that investigation.
3.4 Magnitude Quake Strikes Near Pleasant Hill Day After 4.5 Rocks East BayLess than 24 hours after a 4.5 magnitude earthquake rocked the East Bay, a 3.4 quake struck the same area Tuesday evening.
4.5 Magnitude Earthquake Strikes Near Pleasant Hill; Felt Around Bay AreaA pair of earthquakes, measuring 2.5 and 4.5 magnitude respectively, struck just south of Pleasant Hill on Monday evening, rocking the East Bay, authorities said.
Magnitude 3.5 Earthquake, Aftershocks Strike PeninsulaA magnitude 3.5 earthquake struck off the coast just south of San Francisco on Saturday morning, jolting local residents from their beds and breakfast tables.
Series Of Small Earthquakes Could Mean Big One Is About To Strike, Research SuggestsScientist may finally know how large earthquakes get started: with many smaller ones.
Unprecedented Water Pond in Hawaii Volcano Could Trigger Explosive EruptionsFor the first time in recorded history, a pond of water has been discovered inside the summit crater of Hawaii's Kilauea volcano, a development that could signal a shift to a more explosive phase of future eruptions.
USGS Partners Say ShakeAlert Early Earthquake Warning Worked Ahead Of East Bay QuakesFollowing a 4.3-magnitude earthquake and a 3.5 aftershock in Contra Costa County on Tuesday, 50 technical partners of the U.S. Geological Survey’s ShakeAlert early earthquake warning system were successfully notified, according to a coordinator with the program.
UC Berkeley Scientists Developing Mobile Earthquake ShakeAlert AppSeismologists at University of California at Berkeley are developing a mobile ShakeAlert app to notify Bay Area residents when an earthquake has begun.
7.1 Quake In Southern California A Reminder 'The Big One' Could Strike Bay Area AnytimeThe 7.1 magnitude earthquake that struck Ridgecrest is a reminder to people living in Northern California that the ‘Big One’ could strike here. In fact, a large quake on the Hayward fault is overdue.
California Desert Communities Reeling From Powerful Earthquake SequenceGov. Gavin Newsom has declared a state of emergency for a section of Southern California that saw significant damage after Friday night's magnitude 7.1 earthquake.
SoCal Quake Jolts Complacent Californians Toward PreparednessThe Southern California earthquake is jolting Bay Area residents to get prepared for The Big One.
Aftershocks Rattle SoCal After Magnitude 6.4 Earthquake Hits Mojave DesertA 5.4 magnitude earthquake hit Searles Valley early Friday morning, one of a swarm of hundreds of aftershocks in the wake of Thursday’s massive 6.4 magnitude earthquake in the same area.