Articles | Volume 17, issue 7
https://doi.org/10.5194/nhess-17-1159-2017
https://doi.org/10.5194/nhess-17-1159-2017
Research article
 | 
11 Jul 2017
Research article |  | 11 Jul 2017

Prediction of the area affected by earthquake-induced landsliding based on seismological parameters

Odin Marc, Patrick Meunier, and Niels Hovius

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Cited articles

Alfaro, P., Delgado, J., Garcia-Tortosa, F. J., Lenti, L., Lopez, J. A., Lopez-Casado, C., and Martino, S.: Widespread landslides induced by the Mw 5.1 earthquake of 11 May 2011 in Lorca, SE Spain, Eng. Geol., 137–138, 40–52, https://doi.org/10.1016/j.enggeo.2012.04.002, 2012.
Allmann, B. P. and Shearer, P. M.: Global variations of stress drop for moderate to large earthquakes, J. Geophys. Res.-Sol. Ea., 114, B01310, https://doi.org/10.1029/2008JB005821, 2009.
Avouac, J.-P., Meng, L., Wei, S., Wang, T., and Ampuero, J.-P.: Lower edge of locked Main Himalayan Thrust unzipped by the 2015 Gorkha earthquake, Nat. Geosci., 8, 708–711, https://doi.org/10.1038/ngeo2518, 2015.
Baltay, A., Ide, S., Prieto, G., and Beroza, G.: Variability in earthquake stress drop and apparent stress, Geophys. Res. Lett., 38, L06303, https://doi.org/10.1029/2011GL046698, 2011.
Baltay, A. S. and Hanks, T. C.: Understanding the Magnitude Dependence of PGA and PGV in NGA West 2 Data, B. Seismol. Soc. Am., 104, 2851–2865, https://doi.org/10.1785/0120130283, 2014.
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Short summary
We present an analytical expression for the surface area of the region within which landslides induced by a given earthquake are distributed. The expression is based on seismological scaling laws. Without calibration the model predicts, within a factor of 2, up to 49 out of 83 cases reported in the literature and agrees with the smallest region around the fault containing 95 % of the total landslide area. This model may be used for hazard assessment based on early earthquake detection parameters.
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