Probabilistic and scenario ground-motion hazard maps, input and output data, and documentation. More…
Ground-motion hazard maps originally created in 1996 and updated in 2002 and 2008.
Ground-motion hazard maps originally created in 1999 and updated in 2007.
Ground-motion hazard map (1998).
Puerto Rico & U.S. Virgin Islands
Ground motion hazard map (2003).
Guam & Marianas
Seismic Hazard Assessment for Guam and the Northern Mariana Islands.
Samoa & Pacific Islands
Seismic Hazard Assessment for Samoa/Pacific Islands.
Urban & Regional
Probabilistic and deterministic hazard maps for urban areas using local geologic site effects.
Expected ground motions and effects of specific hypothetical large earthquakes using Shakemap.
Ground-motion hazard maps assuming faults are less likely to rupture after recent large events.
Probabilistic and deterministic ground motion hazard maps for SE Asia, Afghanistan, and Gujarat (India).
Ground motion parameter values for building and bridge design. More…
Create customized hazard and probability maps with additional options to assess individual source-contributions to overall hazard. More…
Create Custom Hazard Maps
Replot local portions of national hazard maps. You define center and span.
Interactive Hazard Maps
On-line SA or PGA maps for 2% or 10% in 50 year PE for conterminous US with features you can turn on and off. Zoom in or pan out.
Map and table of probability that an earthquake with magnitude > M and distance < R will occur in the next k years. Uses the 2009 or 2002 model. Centered on user-supplied location.
Hazard Curve Application
Displays hazard curves and uniform hazard response spectra, and provides details on programmatic access to USGS hazard data.
Tables and plots of source contributions to hazard exceedance by magnitude, distance, ε and ε0 in the conterminous US, Alaska, and Hawaii.
Generates map and grid of Vs30 derived from topographic slope for anywhere in the world.
For a given location, generates a plot of ground motion in bands versus rate as well as an ascii text file of the hazard matrices for each ground motion band.
About the NSHM Project
Learn who we are, and what we do. Gain a better understanding of what these maps and data mean. Information for beginners and experts alike. More…
- Earthquake Hazards 101-The Basics
- Earthquake Hazards 201-Technical Q&A
- Fact Sheet-what are hazard maps?
Where are the faults in my area, and when did they last have a large earthquake? Find maps and comprehensive geologically based information on known or suspected active faults and folds in the United States. More…