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Rheological Controls on Asperity Weakening During Earthquake Slip

Hayward, Kathryn; Hawkins, Rhys; Cox, Stephen; Le Losq, Charles


Evolution of fault strength during the initial stages of seismic slip plays an important role in the onset of velocity‐induced weakening, which in turn, leads to larger earthquake events. A key dynamic weakening mechanism during the early stages of slip is flash heating, where stress concentrations at contacts on the interface lead to the rapid generation of heat. Although potential weakening from flash heating has been extensively modeled, there is little recorded microstructural evidence of...[Show more]

CollectionsANU Research Publications
Date published: 2019-12-19
Type: Journal article
Source: Journal of Geophysical Research: Solid Earth
DOI: 10.1029/2019JB018231
Access Rights: Open Access


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