Name of program: "FaultPatch Model" (top-level executable is "fp-engine")

Type of program (eg quake model, mesh generator, strain calculator, visualizer, etc): quake model (event sequences, not single event details)

Author: Seth McGinnis

Institution: University of Colorado

Program's heritage (ie name and author of predecessor code if any): New

Actively being further developed (y/n): yes

Language: C++

2d (y/n): y

3d (y/n): y

Elastic full space (y/n): y

Elastic half space (y/n): y

Layered elastic (y/n): n*

Viscoelastic half space (y/n): n*

Layered viscoelastic (y/n): n*

Maximum number of faults: processor-limited

Forward model (y/n): y

Inversion capability (y/n): n

Type of inversion:

Finite element ability (y/n): n

Boundary constraints:

Automatic mesh generation:

Includes self gravitation (y/n): n

Quasi-static failure criteria (y/n): y

User defined failure criteria (y/n): y

Hardwired failure criteria (eg Coulomb):

Dynamic solution (y/n): n

Includes waves (y/n): n

Highest resolved frequency:

Includes inertia (y/n): n

Are there accompanying utilities (y/n): y

n*: No, but I've thought about it and think it could be added in without gratuitous pain and suffering.

Is it one main program or several programs that communicate via scripts, files, and pipes? One main program

If it is several programs, please give a 1 line description of the major players.

Input format description: All files are plain-text. Requires a parameter file and a file describing fault element geometries and containing loading rate stresses.

Output format description: Customizable at run-time, to a degree, via parameters in input files. Outputs event sequences (time, size, location) in detail (formatted for display with LASSPTools' DynamicLattice, provided the fault is roughly planar) or in summary.

Is this code available to interested researchers (y/n): yes

Executable available (y/n): I suppose

Type of machine: linux PC

Source available (y/n): yes

Please describe what you consider to be the important features of this code in a paragraph or two.

The FaultPatch model places no contraints on fault geometry, and treats stresses in full and correct tensor form, allowing the full effects of 3-d geometry to be studied.

References describing the algorithms or results from use: None yet. Halfspace Green's functions from Okada, BSSA 1992. Algorithms descendants of model in Rundle, JGR 1988