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Refinements to the Graves–Pitarka Kinematic Rupture Generator, Including a Dynamically Consistent Slip‐Rate Function, Applied to the 2019 M w 7.1 Ridgecrest Earthquake
Deterministic 3D Ground‐Motion Simulations (0–5 Hz) and Surface Topography Effects of the 30 October 2016 M w 6.5 Norcia, Italy, Earthquake
EQSIM—A multidisciplinary framework for fault-to-structure earthquake simulations on exascale computers part I: Computational models and workflow
EQSIM—A multidisciplinary framework for fault-to-structure earthquake simulations on exascale computers, part II: Regional simulations of building response
Using Dense Array Waveform Correlations to Build a Velocity Model with Stochastic Variability
Effect of Random 3D Correlated Velocity Perturbations on Numerical Modeling of Ground Motion from the Source Physics Experiment
Regional‐Scale 3D Ground‐Motion Simulations of M w 7 Earthquakes on the Hayward Fault, Northern California Resolving Frequencies 0–10 Hz and Including Site‐Response Corrections
The Effect of Fault Geometry and Minimum Shear Wavespeed on 3D Ground‐Motion Simulations for an M w 6.5 Hayward Fault Scenario Earthquake, San Francisco Bay Area, Northern California
Broadband (0–5 Hz) Fully Deterministic 3D Ground‐Motion Simulations of a Magnitude 7.0 Hayward Fault Earthquake: Comparison with Empirical Ground‐Motion Models and 3D Path and Site Effects from Source Normalized Intensities
The Source Physics Experiments Large N Array
Kinematic Ground‐Motion Simulations on Rough Faults Including Effects of 3D Stochastic Velocity Perturbations
Generation of Shear Motion from an Isotropic Explosion Source by Scattering in Heterogeneous Media
Analysis of Ground Motion from An Underground Chemical Explosion
Refinements to the Graves and Pitarka (2010) Broadband Ground‐Motion Simulation Method
Broadband Ground‐Motion Simulation of an Intraslab Earthquake and Nonlinear Site Response: 2010 Ferndale, California, Earthquake Case Study
Evaluation of Seismic-Acoustic Analysis Methods for a Real-time UXO Monitoring System
3D elastic finite-difference modeling of seismic motion using staggered grids with nonuniform spacing
Abstract This article provides a technique to model seismic motions in 3D elastic media using fourth-order staggered-grid finite-difference (FD) operators implemented on a mesh with nonuniform grid spacing. The accuracy of the proposed technique has been tested through comparisons with analytical solutions, conventional 3D staggered-grid FD with uniform grid spacing, and reflectivity methods for a variety of velocity models. Numerical tests with nonuniform grids suggest that the method allows sufficiently accurate modeling when the grid sampling rate is at least 6 grid points per shortest shear wavelength. The applicability for a finite fault with nonuniform distribution of point sources is also confirmed. The use of nonuniform spacing improves the efficiency of the FD methods when applied to large-scale structures by partially avoiding the spatial oversampling introduced by the uniform spacing in zones with high velocity. The significant reduction in computer memory that can be obtained by the new technique improves the efficiency of the 3D-FD method at handling shorter wavelengths, larger areas, or more realistic 3D velocity structures.