N​early 75% of the country is at risk for a potentially damaging earthquake, according to a recently updated USGS map.

Other sections of this part of the country are prone to earthquakes, but can expect fewer quakes of smaller magnitude. Below is a map showing the risk of damage by earthquakes for the continental ...

On the map, the color red identifies places with the highest earthquake shaking risk — a 95% chance an earthquake of magnitude 5 or higher will occur in the next 100 years and bring slight or ...

And while the risk of earthquakes in the San Francisco ... When aftershock data is available, the corresponding maps and charts include earthquakes within 100 miles and seven days of the initial ...

Additional information collected about the earthquake may also prompt U.S.G.S. scientists to update the shake-severity map. Aftershocks can occur days, weeks or even years after the first earthquake.