Characteristics of Earthquake Cycles: A Cross-Dimensional Comparison of 0D to 3D Numerical Models.

ABSTRACT: High-resolution computer simulations of earthquake sequences in three or even two dimensions pose great demands on time and energy, making lower-cost simplifications a competitive alternative. We systematically study the advantages and limitations of simplifications that eliminate spatial dimensions in quasi-dynamic earthquake sequence models, from 3D models with a 2D fault plane down to 0D or 1D models with a 0D fault point. We demonstrate that, when 2D or 3D models produce quasi-periodic characteristic earthquakes, their behavior is qualitatively similar to lower-dimension models. Certain coseismic characteristics like stress drop and fracture energy are largely controlled by frictional parameters and are thus largely comparable. However, other observations are quantitatively clearly aff

SUBMITTER: Li M 

PROVIDER: S-EPMC9539514 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature