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.

Read more The US Geological Survey (USGS) detected the seismic activity near Stanley, a town that played a key role in the gold rush during the late 1860s and 1870s The first earthquake struck at ...

An earthquake has struck California's Bay Area right along a fault line experts now fear may be the surprise cause of the long-awaited 'Big One.' The US Geological Survey (USGS) said the 3.2 ...

A giant swarm of earthquakes has struck Southern California near a major fault line that could unleash the infamous 'Big One' and decimate the West Coast. The US Geological Survey (USGS) said that ...