California's seismic risk is increasing with supershear earthquakes, which are faster and more destructive than typical earthquakes.

Earthquakes are often treated as acts of nature that strike without warning along famous plate boundaries, yet a growing body of evidence shows that human activity can also trigger damaging shaking.

It's been a shaky couple of weeks for the ground in Connecticut, with three earthquakes recorded in the state since March 10.

A series of strong quakes abroad and smaller ones at home has Californians increasingly asking the same question: Is the “Big One” looming? Two earthquakes of magnitude 7.0 or greater struck within ...

The backup dam, which stands just downstream from the original, was built in 2005 after experts determined the original dam would not survive a 7.3 earthquake similar to the 1886 Charleston quake. The ...