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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: 63

neic-glass3

neic-glass3 is an open source and platform independent seismic event detection and association algorithm developed by the United States Geological Survey (USGS) National Earthquake Information Center (NEIC) and Caryl Erin Johnson, PhD, Introspective Systems LLC. This algorithm converts a time series of seismic phase arrival times, back azimuth estimates from array beams, and cross-correlated de
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

ShakeMap v4 Software

ShakeMap v4 Software and Documentation
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

groundfailure

This software is for calculating earthquake-induced ground failure hazard (i.e., landslide and liquefaction). These models are intended for regional or global scale applications, and are intended to be distributed in near-real-time, triggered by the Shakemaps.
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Natural Hazards Mission Area, Earthquake Hazards Program, Landslide Hazards Program, Geologic Hazards Science Center

SeismoTectonic Regime Earthquake Calculator (STREC)

Automatically determines the earthquake type (subduction zone interface, active crustal shallow, stable continental region, etc.) and the earthquake focal mechanism.

By
Earthquake Hazards Program

landslides-mLS

mLS is a function that estimates the landslide magnitude (mLS) from cutoff (smallest area that follows power law), beta (power-law exponent), and an array of areas derived from a landslide inventory following the methods of Tanyas and others (in prep). The function plots the best power-law fit for the medium and large landslides and the frequency-area distribution of the analyzed inventory. It als
By
Natural Hazards Mission Area, Earthquake Hazards Program, Landslide Hazards Program, Geologic Hazards Science Center

landslides-metadata

Automate production of metadata following the USGS geospatial metadata format.
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Natural Hazards Mission Area, Earthquake Hazards Program, Landslide Hazards Program, Community for Data Integration (CDI), Geologic Hazards Science Center

nshmp-haz-v1

U.S. Geological Survey (USGS) National Seismic Hazard Mapping Project (NSHMP) code for performing probabilistic seismic hazard (PSHA) and related analyses. These codes are intended for use with seismic hazard models developed by the NSHMP for the U.S. and its territories.
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Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

Point-source to finite-fault distance conversions

Produce approximated finite fault distances and variance corrections given point source information, e.g., Repi (epcentral distance) to Rrup (rupture distance).
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Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

Graizer-Kalkan (2015) Ground Motion Prediction Equation

Graizer-Kalkan (2015) ground motion prediction equation (GMPE) is designed to predict peak-ground acceleration and 5% damped pseudo-spectral acceleration response ordinates for shallow-crustal continental earthquakes to be used in earthquake-engineering applications including probabilistic and deterministic seismic hazard analyses.

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Earthquake Hazards Program

SLAMMER - Seismic Landslide Movement Modeled using Earthquake Records

SLAMMER is a Java program that facilitates performing a variety of sliding-block analyses to evaluate seismic slope performance.

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Earthquake Hazards Program

USGS Twitter Earthquake Dispatch (@USGSted)

@USGSted (USGS Twitter Earthquake Dispatch) distributes Twitter alerts for earthquakes worldwide with magnitudes of 5.5 and above. When citizens feel shaking activity, they often use the popular social media application, Twitter, to "tweet" what they are experiencing.

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Earthquake Hazards Program, Earthquake Science Center, Fort Collins Science Center

Risk-Targeted Ground Motion Calculator

This web application can be used to calculate risk-targeted ground motion values in accordance with “Method 2” of 2010 ASCE 7 Standard Section 21.2.1.2.

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Natural Hazards Mission Area, Earthquake Hazards Program