Software
This is a subset of our downloadable software for earthquake research. USGS uses GitHub for all new software development, as well as open sourcing older software as time allows. For a comprehensive listing of all available software, see how our applications work, and to collaborate with us, please go to USGS GitHub.
Filter Total Items: 68
MacR1D MacR1D
MacR1D is a one-dimensional seismic travel-time calculator for Macintosh.
PDL PDL
The Product Distribution Layer (PDL) is a USGS platform for receiving earthquake data over the Internet in near-real time.
PQLX: A Software Tool to Evaluate Seismic Station Performance PQLX: A Software Tool to Evaluate Seismic Station Performance
PQLX is open-source software system for evaluating seismic station performance and data quality.
NSHMP Models, Codes and Catalogs - National Seismic Hazard Mapping Project NSHMP Models, Codes and Catalogs - National Seismic Hazard Mapping Project
Models, Codes and Catalogs used to produce the National Seismic Hazard Maps.
OpenSHA OpenSHA
OpenSHA is an effort to develop object-oriented, web- & GUI-enabled, open-source, and freely available code for conducting Seismic Hazard Analyses (SHA).
MacRay MacRay
MacRay is a general purpose two-dimensional seismic ray-tracer for Macintosh.
HYPOINVERSE Earthquake Location HYPOINVERSE Earthquake Location
HYPOINVERSE2000 determines earthquake locations and magnitudes from seismic network data like first-arrival P and S arrival times, amplitudes and coda durations.
HypoDD HypoDD
HypoDD is a Fortran computer program package for relocating earthquakes with the double-difference (DD) algorithm of Waldhauser and Ellsworth (2000).
HASH 1.2 HASH 1.2
HASH is a Fortran 77 code that computes double-couple earthquake focal mechanisms from P-wave first motion polarity observations, and optionally S/P amplitude ratios.
FPFIT, FPPLOT and FPPAGE FPFIT, FPPLOT and FPPAGE
FPFIT is a Fortran program that computes double-couple fault plane solutions from P-wave first motion data using a grid search method.
Direct Green's Function Synthetic Seismograms Direct Green's Function Synthetic Seismograms
These programs are an implementation of the Direct Green’s Function method described by Friederich and Dalkolmo (1995) and Dalkolmo (1993).
ComCat Wrapper Libraries ComCat Wrapper Libraries
Bulk access via scripts, programs, and tools for obtaining specific products from ComCat (the earthquake catalog).