Nonlinear thermoporoelastic effects on dynamic earthquake rupture

Dynamic Stress Changes during Earthquake Rupture

We assess two competing dynamic interpretations that have been proposed for the short slip durations characteristic of kinematic earthquake models derived by inversion of earthquake waveform and geodetic data. The first interpretation would require a fault constitutive relationship in which rapid dynamic restrengthening of the fault surface occurs after passage of the rupture front, a hypothesi...

Nonlinear dynamic rupture inversion of the 2000 Western Tottori, Japan, earthquake

[1] We have developed a systematic nonlinear inversion method for estimating rupture propagation and the underlying dynamic parameters for large historical earthquakes. The rupture modeling is carried out using a three-dimensional finite-difference method, and the inversion is implemented by a neighbourhood algorithm, minimizing the misfit between computed and observed near-fault seismograms. W...

Modeling Dynamic Rupture in a 3D Earthquake Fault Model

We propose a fourth-order staggered-grid finite-difference method to study dynamic faulting in three dimensions. The method uses an implementation of the boundary conditions on the fault that allows the use of general friction models including slip weakening and rate dependence. Because the staggered-grid method defines stresses and particle velocities at different grid points, we preserve symm...

The Mechanics of Earthquake Rupture

Dynamic earthquake rupture simulations on nonplanar faults embedded in 3D geometrically complex, heterogeneous elastic solids

Article history: Received 15 December 2014 Received in revised form 12 October 2015 Accepted 13 October 2015 Available online 19 October 2015