Software
An official USGS software project is code reviewed and approved at the bureau-level for distribution.
Filter Total Items: 883
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.
Cleanstrain+ Cleanstrain+
Cleanstrain+ is a program to process strainmeter data.
CLUSTER2000 CLUSTER2000
CLUSTER2000 recognizes clusters in space-time in an earthquake catalog.
3D Focal Mechanisms 3D Focal Mechanisms
3D Focal Mechanisms is a tool for viewing earthquake focal mechanism symbols three dimensionally.
3D Velocity Modeling 3D Velocity Modeling
Fortran code (VMS compatible) for 3-D velocity model determination and hypocentral location with local earthquake data.
MODFLOW-2005: USGS Three-Dimensional Finite-Difference Ground-Water Model MODFLOW-2005: USGS Three-Dimensional Finite-Difference Ground-Water Model
MODFLOW 6 is presently the core MODFLOW version distributed by the USGS, but MODFLOW-2005 (the previous core version) is still actively maintained and supported. MODFLOW-2005 simulates steady and nonsteady flow in an irregularly shaped flow system in which aquifer layers can be confined, unconfined, or a combination of confined and unconfined.