“Nearly 75% of the United States Could Experience a Damaging Earthquake”

Color-coded map of the contiguous U.S., plus Alaska (above) and Hawaii (below).
National Seismic Hazard Model (2023). Map displays the likelihood of damaging earthquake shaking in the United States over the next 100 years.

The U.S. Geological Survey (USGS) recently published a new color-coded map of all 50 states showing where damaging earthquakes are most likely to occur. The map was created using a comprehensively updated USGS National Seismic Hazard Model (NSHM). “The update includes more faults, better-characterized land surfaces, and computational advancements in modeling that provide the most detailed view ever of the earthquake risks we face,” said Mark Petersen, the USGS geophysicist and lead author of the study that produced the map.

Read the USGS announcement and view the map.

Learn about the scientific assessment behind the map: article in the journal Earthquake Spectra