Maxwell: A semi-analytic 4D code for earthquake cycle modeling of transform fault systems

TitleMaxwell: A semi-analytic 4D code for earthquake cycle modeling of transform fault systems
Publication TypeJournal Article
Year of Publication2018
AuthorsSandwell D., Smith-Konter B
JournalComputers & Geosciences
Volume114
Pagination84-97
Date Published2018/05
Type of ArticleArticle
ISBN Number0098-3004
Accession NumberWOS:000428828700008
Keywordscalifornia; Computer Science; Geology; half-space; hector mine; mantle flow; postseismic deformation; relaxation; san-andreas fault; Shear; southern; strike-slip-fault; viscoelastic model
Abstract

We have developed a semi-analytic approach (and computational code) for rapidly calculating 3D time-dependent deformation and stress caused by screw dislocations imbedded within an elastic layer overlying a Maxwell viscoelastic half-space. The maxwell model is developed in the Fourier domain to exploit the computational advantages of the convolution theorem, hence substantially reducing the computational burden associated with an arbitrarily complex distribution of force couples necessary for fault modeling. The new aspect of this development is the ability to model lateral variations in shear modulus. Ten benchmark examples are provided for testing and verification of the algorithms and code. One final example simulates interseismic deformation along the San Andreas Fault System where lateral variations in shear modulus are included to simulate lateral variations in lithospheric structure.

DOI10.1016/j.cageo.2018.01.009
Short TitleComput. Geosci.
Student Publication: 
No