Although the earth is 3-dimensional (3-D), numerical simulations of wave propagation through laterally heterogeneous media are easier to formulate and more practical to use in 2-D. In this thesis, schemes to model seismic wave propagation through laterally varying structures with 2-D numerical algorithms are developed and applied to earthquake and explosion problems. In Chapter 1, 2-D source expressions that have the same radiation patterns as their 3-D counterparts are derived which can rectify the following three problems: the use of 2-D simulations generally results in "line source tails" on what would be impulsive arrivals in 3-D, 1/√R rather than 1/R amplitude decay for body waves, and no decay rather than 1/√R amplitude decay for s...
Two-dimensional (2-D) finite-difference (FD) synthetics, which fill the gap between fast 1-D analyti...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1970....
For iterative calculations of synthetic seismograms with limited computer resources, a fast and accu...
Finite-difference seismograms calculated for the 1971 San Fernando earthquake show strong effects du...
Three-dimensional finite difference simulations of elastic waves in the San Bernardino Valley were p...
An analytic technique is developed that couples to finite difference calculations to extend the res...
I present synthetics of seismic wave propagation near free surface topography. The velocity-stress f...
Boundary conditions are derived for numerical wave simulations that minimize artificial reflections ...
The accuracy of the finite-difference method for generating synthetic seismograms of SH wave propaga...
Path effects for seismic wave propagation within three-dimensional (3-D) basin structures are analyz...
We present a scheme for generating synthetic point-source seismograms for shear dislocation sources ...
At subduction zones, the laterally heterogeneous medium such as the steeply dipping sea bottom and t...
A finite-difference algorithm is used to generate synthetic seismograms for waves propagating throug...
The 1994 Northridge mainshock and its aftershocks show a complex pattern of peak accelerations at st...
For iterative calculations of synthetic seismograms with limited computer resources, a fast and accu...
Two-dimensional (2-D) finite-difference (FD) synthetics, which fill the gap between fast 1-D analyti...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1970....
For iterative calculations of synthetic seismograms with limited computer resources, a fast and accu...
Finite-difference seismograms calculated for the 1971 San Fernando earthquake show strong effects du...
Three-dimensional finite difference simulations of elastic waves in the San Bernardino Valley were p...
An analytic technique is developed that couples to finite difference calculations to extend the res...
I present synthetics of seismic wave propagation near free surface topography. The velocity-stress f...
Boundary conditions are derived for numerical wave simulations that minimize artificial reflections ...
The accuracy of the finite-difference method for generating synthetic seismograms of SH wave propaga...
Path effects for seismic wave propagation within three-dimensional (3-D) basin structures are analyz...
We present a scheme for generating synthetic point-source seismograms for shear dislocation sources ...
At subduction zones, the laterally heterogeneous medium such as the steeply dipping sea bottom and t...
A finite-difference algorithm is used to generate synthetic seismograms for waves propagating throug...
The 1994 Northridge mainshock and its aftershocks show a complex pattern of peak accelerations at st...
For iterative calculations of synthetic seismograms with limited computer resources, a fast and accu...
Two-dimensional (2-D) finite-difference (FD) synthetics, which fill the gap between fast 1-D analyti...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1970....
For iterative calculations of synthetic seismograms with limited computer resources, a fast and accu...