There have been more than 400 tremors recorded in this swarm as of May 11. How unusual is this?

About 55 earthquakes a day – 20,000 a year – are recorded by the National Earthquake Information Center. Most are tiny and barely noticed by people living where they happen. But some are strong enough ...

According to reporting based on U.S. Geological Survey data, a magnitude 4.9 earthquake struck Riverside County at 5:56 p.m. local time, centered roughly seven miles from Indio. The quake was shallow, ...

The quake struck at 10:44 a.m.Thursday. The shaking reached as far as the San Francisco Bay Area, nearly 270 miles away. People there said they felt both the initial quake and several waves of ...

Unlike other earthquake-prone places around the planet, California is overdue for a major quake, according to a recent study. But that doesn’t mean a catastrophic event like the 1906 San Francisco ...

SALT LAKE CITY (ABC4) — Seismologists with the University of Utah provided an update on the 4.7 magnitude earthquake Thursday morning. “It’s not considered a big earthquake at all,” Keith Koper, the ...

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When the house started shaking, Mandy Evenson picked up her 7-year-old son and dashed outside. “It was a really hard, sharp shake,” she said. “It felt like I was in a snow globe — like somebody ...