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https://hdl.handle.net/10356/146197
Title: | Bifurcations at the stability transition of earthquake faulting | Authors: | Mele Veedu, Deepa Giorgetti, Carolina Scuderi, Marco Barbot, Sylvain Marone, Chris Collettini, Cristiano |
Keywords: | Science::General | Issue Date: | 2020 | Source: | Mele Veedu, D., Giorgetti, C., Scuderi, M., Barbot, S., Marone, C., & Collettini, C. (2020). Bifurcations at the stability transition of earthquake faulting. Geophysical Research Letters, 47(19), e2020GL087985-. doi:10.1029/2020GL087985 | Project: | M4430260.B50.500000 | Journal: | Geophysical Research Letters | Abstract: | Tectonic faults typically break in a single rupture mode within the range of styles from slow slip to dynamic earthquake failure. However, in increasingly well‐documented instances, the same fault segment fails in both slow and fast modes within a short period, as in the sequences that culminated in the 2011 Mw = 9.0 Tohoku‐Oki, Japan, and 2014 Mw = 8.2 Iquique, Chile, earthquakes. Why slow slip alternates with dynamic rupture in certain regions but not in others is not well understood. Here, we integrate laboratory experiments and numerical simulations to investigate the physical conditions leading to cycles where the two rupture styles alternate. We show that a bifurcation takes place near the stability transition with sequences encompassing various rupture modes under constant loading rate. The range of frictional instabilities and slip cycles identified in this study represents important end‐members to understand the interaction of slow and fast slip on the same fault segment. | URI: | https://hdl.handle.net/10356/146197 | ISSN: | 0094-8276 | DOI: | 10.1029/2020GL087985 | Research Centres: | Earth Observatory of Singapore | Rights: | © 2020 American Geophysical Union. All rights reserved. This paper was published in Geophysical Research Letters and is made available with permission of American Geophysical Union. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | EOS Journal Articles |
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Bifurcations at the stability transition of earthquake faulting.pdf | 5.18 MB | Adobe PDF | View/Open |
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