2 results
31 - Landslides induced by the Wenchuan earthquake
- Edited by John J. Clague, Simon Fraser University, British Columbia, Douglas Stead, Simon Fraser University, British Columbia
-
- Book:
- Landslides
- Published online:
- 05 May 2013
- Print publication:
- 23 August 2012, pp 383-392
-
- Chapter
- Export citation
-
Summary
Abstract A large number of landslides were triggered by the 2008 Mw 7.9 Wenchuan earthquake, which was accompanied by 270 km of surface rupture along the Longmenshan fault at the eastern margin of the Tibetan Plateau. The landslides were strongly controlled by geology, geomorphology, and earthquake shaking. They were concentrated on the hanging walls of the fault ruptures, and their directions seem to have been affected by the directivity of seismic waves. Landslides were also concentrated within the inner gorge of Minjian River. Carbonate rocks failed preferentially, probably due to their low shear resistance, caused in part by dissolution. A power function defines the relationship between the cumulative number of landslides and landslide area. The largest landslide, with an estimated volume of 0.8 km3, occurred on a cataclinal slope of carbonate rocks and was preceded by slow gravitational slope deformation. The second-largest landslide occurred in carbonate rocks on an undercut slope. Another large landslide had a long runout due to liquefaction and entrainment of sandy valley-bottom sediments. More than 800 of the landslides triggered by the earthquake blocked watercourses and impounded lakes.
Contributors
-
- By Federico Agliardi, Andrea Alpiger, Gianluca Bianchi Fasani, Lars Harald Blikra, Brian D. Bornhold, Edward N. Bromhead, Marko H.K. Bulmer, D. Calvin Campbell, Marie Charrière, Masahiro Chigira, John J. Clague, John Coggan, Giovanni B. Crosta, Tim Davies, Marc-Henri Derron, Mark Diederichs, Erik Eberhardt, Carlo Esposito, Robin Fell, Paolo Frattini, Corey R. Froese, Monica Ghirotti, Valentin Gischig, James S. Griffiths, Stephen R. Hencher, Reginald L. Hermanns, Kris Holm, Seyyedmahdi Hosseyni, Niels Hovius, Christian Huggel, Florian Humair, Oldrich Hungr, D. Jean Hutchinson, Michel Jaboyedoff, Matthias Jakob, Julien Jakubowski, Randall W. Jibson, Katherine S. Kalenchuk, Nikolay Khabarov, Oliver Korup, Luca Lenti, Serge Leroueil, Simon Loew, Oddvar Longva, Patrick MacGregor, Andrew W. Malone, Salvatore Martino, Scott McDougall, Mika McKinnon, Mauri McSaveney, Patrick Meunier, Dennis Moore, Jeffrey R. Moore, David C. Mosher, Michael Obersteiner, Lucio Olivares, Thierry Oppikofer, Luca Pagano, Massimo Pecci, Andrea Pedrazzini, David Petley, Luciano Picarelli, David J.W. Piper, John Psutka, Nicholas J. Roberts, Gabriele Scarascia Mugnozza, David Stapledon, Douglas Stead, Richard E. Thomson, Paolo Tommasi, J. Kenneth Torrance, Nobuyuki Torii, Gianfranco Urciuoli, Gonghui Wang, Christopher F. Waythomas, Malcolm Whitworth, Heike Willenberg, Xiyong Wu
- Edited by John J. Clague, Simon Fraser University, British Columbia, Douglas Stead, Simon Fraser University, British Columbia
-
- Book:
- Landslides
- Published online:
- 05 May 2013
- Print publication:
- 23 August 2012, pp vii-x
-
- Chapter
- Export citation