The bold question-askers at What If examine the nearly impossible fault line conditions needed to trigger a magnitude 20 ...

An underwater fault line along the US West Coast could trigger a megaquake that would be more devastating than California's 'Big One,' a new study suggests. Using underwater mapping techniques ...

A group of fault lines sit underground near Van Horn, Texas, dating up to 1.6 million years old, according to a map published by the USGS.

A new paper in the journal Nature offers an explanation for why the major fault line is overdue for the Big One. By Thomas Fuller It has been about three centuries since the last great earthquake ...

Experts have predicted an earthquake could erupt, causing devastation to the Pacific Northwest area of the US after a crack was discovered in a 600-mile long fault line ...

Oklahoma has a series of fault lines that run through the state which have been mapped out by the US Geological Survey. The two which are most likely to affect the state are the Madrid Fault and ...

The new fault line runs across Vancouver Island, close to the U.S. border, and poses a hazard to the region's 400,000 inhabitants, the study authors said.

A group of fault lines sit underground near Van Horn, Texas, dating up to 1.6 million years old, according to a map published by the USGS.