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Laboratory Earthquakes: The Sub-Rayleigh-to-Supershear Rupture Transition
March 19 2004
March 19 2004
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Abstract
We report on the experimental observation of spontaneously nucleated supershear rupture
and on the visualization of sub-Rayleigh-to-supershear rupture transitions in frictionally
held interfaces. The laboratory experiments mimic natural earthquakes. The results
suggest that under certain conditions supershear rupture propagation can be facilitated
during large earthquake events.