Numerical and laboratory simulation of fault motion and earthquake occurrence
作者:
Steven C. Cohen,
期刊:
Reviews of Geophysics
(WILEY Available online 1979)
卷期:
Volume 17,
issue 1
页码: 61-72
ISSN:8755-1209
年代: 1979
DOI:10.1029/RG017i001p00061
数据来源: WILEY
摘要:
This paper reviews the simulation of earthquake occurrence by numerical and laboratory mechanical block models. Simple linear rheological elements are used with elastic forces driving the main events and viscoelastic forces being important for aftershock and creep occurrence. Friction and its dependence on velocity, stress, and displacement also play a key role in determining how, when, and where fault motion occurs. The discussion of the qualitative behavior of the simulators focuses on the manner in which energy is stored in the system and released by the unstable and stable sliding processes. The numerical results emphasize the statistics of earthquake occurrence and the correlations among source parameters.
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