Evidence for anthropogenic surface loading as trigger mechanism of the 2008 Wenchuan earthquake

  title={Evidence for anthropogenic surface loading as trigger mechanism of the 2008 Wenchuan earthquake},
  author={Christian D. Klose},
  journal={Environmental Earth Sciences},
  • C. Klose
  • Published 13 July 2010
  • Geology
  • Environmental Earth Sciences
Two and a half years prior to China’s M7.9 Wenchuan earthquake of May 2008, at least 300 million metric tons of water accumulated with additional seasonal water level changes in the Minjiang River Valley at the eastern margin of the Longmen Shan. This article shows that static surface loading in the Zipingpu water reservoir induced Coulomb failure stresses on the nearby Beichuan thrust fault system at <17 km depth. Triggering stresses exceeded levels of daily lunar and solar tides and perturbed… 

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A poroelastic triggering effect (even if indirectly) of the THE AUTHORS due to the impoundment of the ZR is suggested, which may have advanced tectonic loading of the fault system by ~60–450 years.

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Tidal triggering of reservoir-associated earthquakes

  • F. Klein
  • Geology, Environmental Science
  • 1976

Evidence that the 2008 Mw 7.9 Wenchuan Earthquake Could Not Have Been Induced by the Zipingpu Reservoir

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