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Repeating earthquakes, episodic tremor and slip: Emerging patterns in complex earthquake cycles? by Wang-Ping Chen; Michael R. Brudzinski is a Physics and Astronomy article available to read on EtoBox.

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## Abstract The lack of regularity in earthquake cycles continues to be a confounding issue in earthquake science. Lately, observations of episodic nonvolcanic tremor and slip (ETS) along a few well‐instrumented tectonic plate boundaries are intriguing: these features recur together with predictable time intervals. Data now trace recurring ETS back to 1990 and no significant earthquake ever followed an ETS episode. This observation and the fact that stress drops associated with episodic slips are low, only on the order of 0.01 MPa, suggests that repeated ETS has little cumulative effects in priming the fault for the next large earthquake. Another known regularity in seismic activity is the so‐called repeating earthquakes that rupture the same patch of fault repetitively. Current hypotheses for repeating earthquakes point to the interaction of continual, aseismic fault slip with locked, seismogenic patches of the fault. Interestingly, ETS also recur near where the transition between brittle faulting and plastic flow is expected, although it is not clear how and why regularities in space and time are interconnected. New data show that ETS recurs throughout the entire length of the Ca

Who reads Repeating earthquakes, episodic tremor and slip: Emerging patterns in complex earthquake cycles??

Author

Wang-Ping Chen; Michael R. Brudzinski

Publisher

John Wiley and Sons; Hindawi Limited; Wiley (ISSN 1076-2787)

Published

2007

Language

EN

Field

Physics and Astronomy (Physical Sciences)