• Corpus ID: 247159061

Supershear shock front contribution to the tsunami from the 2018 $\mathbf M_{\mathbf w}$ 7.5 Palu, Indonesia earthquake

  title={Supershear shock front contribution to the tsunami from the 2018 \$\mathbf M\_\{\mathbf w\}\$ 7.5 Palu, Indonesia earthquake},
  author={Faisal Amlani and Harsha S. Bhat and Wim J. F. Simons and Alexandre Schubnel and Christophe Vigny and Ares J. Rosakis and Joni Efendi and Ahmed E Elbanna and Pierpaolo Dubernet and Hasanuddin Zainal Abidin},
Hazardous tsunamis are known to be generated predominantly at subduction zones. However, the 2018 Mw 7.5 Sulawesi (Indonesia) earthquake on a strike-slip fault generated a tsunami that devastated the city of Palu. The mechanism by which this tsunami originated from such an earthquake is being debated. Here we present near-field ground motion (GPS) data confirming that the earthquake attained supershear speed, i.e., a rupture speed greater than the shear wave speed of the host medium. We study… 
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