Multiple reports highlight which cities in the U.S. face increased risk of earthquakes, with California topping the list.

Two fault systems on North America's West Coast – the Cascadia subduction zone and the San Andreas fault – may be synchronized, with earthquakes on one fault potentially triggering seismic events on ...

PASADENA, Calif. — 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 ...

Early-warning systems for earthquakes like the one that saved lives recently in Mexico City are highly effective, but the USGS ShakeAlert program is in jeopardy thanks to disputes over funding. After ...