Hazards

The USGS has recently released a 2016 one-year seismic hazard forecast for the Central and Eastern United States. This forecast includes seismic hazard from induced and natural earthquakes. Maps, documentation, and data will be posted here, at the Induced Earthquakes link below as they become available.

Seismic Hazard Maps and Data

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Probabilistic and scenario ground-motion hazard maps, input and output data, and documentation. More…

Seismic Design Maps, Data, and Tools for Engineers

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Ground motion parameter values for building and bridge design. More…

Seismic Hazard Analysis Tools

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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.
  • 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.
  • Hazard Curves
    Displays hazard curves and uniform hazard response spectra, and provides details on programmatic access to USGS hazard data.
  • Vs30
    Generates map and grid of Vs30 derived from topographic slope for anywhere in the world.
  • Interactive Deaggregations
    Tables and plots of source contributions to hazard exceedance by magnitude, distance, ε and ε0 in the conterminous US, Alaska, and Hawaii.
  • Banded Deaggregations
    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.

Faults

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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…

Seismic Hazards Primers

About the NSHM Project