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

To find out how a big earthquake might hit your neighborhood take a look at scenario maps created for Southern California regions. For the basics in earthquake cartography—learn how hazard maps ...

Over fifty scientists and engineers conducted the USGS National Seismic Hazard Model (NSHM). This model was used to create a ...

In neighboring Oregon, the map colors are ... second highest earthquake risk in the US and correspondingly a significant tsunami risk as well,” Daniel Eungard, a tsunami hazards geologist ...