Nearly 75% of the country is at risk for a potentially damaging earthquake in the next 100 years, according to a recently updated map from the U.S. Geological Survey. The map is the first to include all 50 states in a single USGS assessment, and it shows ...

A shake alert went out over the U.S. Geological Survey's early warning system on Dec. 4, warning that a 5.9 earthquake near Carson City in western Nevada could produce heavy shaking in the region. But moments later, the survey announced the alert, which was sent to people as far west as San Francisco, was a false alarm.

A map provided by the U.S. Geological Survey (USGS) shows the nearly 600 miles of northern California and southern Oregon coastline under a tsunami warning after a magnitude 7.0 earthquake rattled the region on Thursday. The earthquake hit offshore Cape ...

A notification about a magnitude-5.9 earthquake in western Nevada near the California border was a false alert, the USGS said.

Many residents in Northern California got a MyShake alert Thursday morning about a 5.9 earthquake in western Nevada, but it is unclear if it actually happened after it was removed from the USGS website.

At least seven earthquakes have struck in California in the last 24 hours, according to data from the United States Geological Survey (USGS). The quakes range in size from a 2.5 magnitude up to a 4.1 magnitude,

A 5.9 magnitude earthquake was reported in Nevada, causing alerts in San Francisco. However, the USGS later removed the quake from its map, leading to uncertainty about its occurrence.