Hawthorne, JC orcid.org/0000-0002-4117-2082 and Rubin, AM (2013) Laterally propagating slow slip events in a rate and state friction model with a velocity-weakening to velocity-strengthening transition. Journal of Geophysical Research: Solid Earth, 118 (7). pp. 3785-3808. ISSN 2169-9313
Abstract
We investigate the behavior of simulated slow slip events using a rate and state friction model that is steady state velocity weakening at low slip speeds but velocity strengthening at high slip speeds. Our simulations are on a one-dimensional (line) fault, but we modify the elastic interactions to mimic the elongate geometry frequently observed in slow slip events. Simulations exhibit a number of small events as well as periodic large events. The large events propagate approximately steadily “along strike,” and stress and slip rate decay gradually behind the propagating front. Their recurrence intervals can be determined by considering what is essentially an energy balance requirement for long-distance propagation. It is possible to choose the model parameters such that the simulated events have the stress drops, slip velocities, and propagation rates observed in Cascadia.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2013, American Geophysical Union. All Rights Reserved. An edited version of this paper was published by AGU and available at: https://doi.org/10.1002/jgrb.50261 |
Keywords: | slow earthquakes; rate and state friction; weakening to strengthening transition |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst of Geophysics and Tectonics (IGT) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Sep 2017 12:47 |
Last Modified: | 08 Sep 2017 12:47 |
Status: | Published |
Publisher: | American Geophysical Union |
Identification Number: | 10.1002/jgrb.50261 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:111048 |