The U.S. Geological Survey was still trying to unravel how an alert was sent Thursday morning for a nonexistent 5.9 earthquake outside Dayton, Nevada. A quake of that size wouldn't be implausible.

The U.S. Geological Survey (USGS) confirmed Thursday that alerts of a 5.9 magnitude earthquake in Nevada were a false alarm. On its website, the USGS said that its ShakeAlert early-warning system sent ...

A false alarm claiming a major earthquake had just struck the western US sparked confusion and panic Thursday morning. According to an alert from the US Geological Survey (USGS) just after 11am ET ...

The USGS initially reported a 5.9 quake near Dayton, Nevada about 8 a.m. Moments afterward, the USGS deleted the event. The USGS said the first alert was a mistake and they were looking into it.