Seventy-five tremors hit San Ramon, a small California city on 2. Here's what caused the swarm and why it isn't entirely ...

More than 200 small earthquakes peppered California's Imperial Valley on Wednesday night and Thursday morning. The USGS reports that 240 small earthquakes occurred near Westmorland, California, ...

The quake struck just after 7:30 a.m. according to the U.S. Geological Survey. The San Ramon Valley area has recorded 83 quakes since Nov. 9 wiin a tight one-mile radius. According to USGS, the ...

The Hawthorne Bridge was closed for nearly an hour during the Tuesday evening commute after the Willamette River crossing encountered a mechanical malfunctionMu SWAT team arrests two people at ...

A swarm of small earthquakes hit south of San Ramon on Monday, according to the U.S. Geological Survey. About 16 quakes were recorded overnight and into Monday, USGS researcher Annemarie Baltay told ...

SAN RAMON, Calif. — The ground has been restless in this California community 35 miles east of San Francisco. Since late last year, dozens of earthquakes have rumbled through San Ramon and its tidy ...