OpenSHA is an effort to develop object-oriented, web- & GUI-enabled, open-source, and freely available code for conducting Seismic Hazard Analyses (SHA).

Our goal is to provide a framework where any arbitrarily complex (e.g., physics based) earthquake-rupture forecast, ground-motion, or engineering-response model can “plug in” for analysis without having to change what’s being plugged into.

Although some applications will be stand alone, our goal is also to enable the various SHA components to be geographically distributed over the internet in what we term a “community modeling environment”, all tied together with a user-friendly web interface.

This infrastructure should significantly reduce the gap between cutting-edge geophysics and state-of-the-art hazard and risk evaluations.

We encourage participation from anyone in this development.