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, 2008, and 2014.
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.
Time-Dependent EQ Probability Maps
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…
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.
Custom Earthquake Probability Maps
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.
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.
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.
Generates map and grid of Vs30 derived from topographic slope for anywhere in the world.