3D Modeling of kinematic and dynamic ruptures in anisotropic media

百花草

We study the behavior of expanding sources and their radiated wave fields in the
context of fault zone typical velocity structures and anisotropy (due to cracking) in
the surrounding material.
We solve the set of elasto−dynamic equations for the three−dimensional anisotropic
case [2] using standard finite difference scheme.
Fault zones are thought to consist of a narrow zone of reduced seismic velocities and
considerable material anisotropy due to aligned cracks and fractures. In this study we
focus on two questions: How does material anisotropy in the fault zone effect the
radiated wave field of expanding directed sources, and how does dynamic rupture
propagation interact with the anisotropic media and reduced seismic velocity in the
fault zone.

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goodminer

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