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Book Chapter

Theory of Velocity of Earthquake Dislocations

By
Johannes Weertman
Johannes Weertman
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Published:
January 01, 1975

In a previous publication, I calculated the velocity at which earthquake dislocations should propagate if the friction law of a fault is dominated by a dependence on the slippage velocity. It was found that earthquake dislocations should travel at either the Rayleigh velocity (edge dislocations), or the shear-wave velocity (screw dislocations), or at a supersonic velocity. In this paper an investigation is made of the permitted earthquake dislocation velocities for faults whose friction law is dominated by a dependence on slippage displacement rather than slippage velocity. It is found that dislocations can move at arbitrary subsonic velocities and at least one transonic velocity

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GSA Memoirs

Quantitative Studies in the Geological Sciences

E. H. Timothy Whitten
E. H. Timothy Whitten
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Geological Society of America
Volume
142
ISBN print:
9780813711423
Publication date:
January 01, 1975

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