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Spatial distribution of large-scale landslides induced by the 5.12 Wenchuan Earthquake

  • Qiang XuEmail author
  • Shuai Zhang
  • Weile Li
Article

Abstract

The 5.12 Wenchuan Earthquake in 2008 induced hundreds of large-scale landslides. This paper systematically analyzes 112 large-scale landslides (surface area > 50000 m2), which were identified by interpretation of remote sensing imagery and field investigations. The analysis suggests that the distribution of large-scale landslides is affected by the following four factors: (a) distance effect: 80% of studied large-scale landslides are located within a distance of 5 km from the seismic faults. The farther the distance to the faults, the lower the number of large-scale landslides; (b) locked segment effect: the large-scale landslides are mainly located in five concentration zones closely related with the crossing, staggering and transfer sections between one seismic fault section and the next one, as well as the end of the NE fault section. The zone with the highest concentration was the Hongbai-Chaping segment, where a great number of large-scale landslides including the two largest landslides were located. The second highest concentration of large-scale landslides was observed in the Nanba-Donghekou segment at the end of NE fault, where the Donghekou landslide and the Woqian landslide occurred; (c) Hanging wall effect: about 70% of the large-scale landslides occurred on the hanging wall of the seismic faults; and (d) direction effect: in valleys perpendicular to the seismic faults, the density of large-scale landslides on the slopes facing the seismic wave is obviously higher than that on the slopes dipping in the same direction as the direction of propagation of the seismic wave. Meanwhile, it is found that the sliding and moving directions of large-scale landslides are related to the staggering direction of the faults in each section. In Qingchuan County where the main fault activity was horizontal twisting and staggering, a considerable number of landslides showed the feature of sliding and moving in NE direction which coincides with the staggering direction of the seismic faults.

Keywords

5.12 Wenchuan Earthquake Landslides Distribution pattern Direction effect Locked segment effect 

References

  1. Champati RPK, Parvaiz I (2009) Analysis of seismicity-induced landslides due to the 8 October 2005 earthquake in Kashmir Himalaya. Current science 97(12): 1742–1751Google Scholar
  2. Cole WF, Marcum DR, Shires PO (1998) Analysis of earthquake-reactivated landslides in the epicenter region, central santa crumountains, California. In: Keefer DV (eds.), The Loma Prieta, California, Earthquake of October 17, 1989-Landslides: U.S. Geological Survey Professional paper1551-C. pp C165–C185Google Scholar
  3. David P (2008) Earthquake induced landslides lessons from Taiwan and Pakistan. In: Multi-media academic report in Chengdu University of Technology.Google Scholar
  4. Garcia-Rodriguez MJ, Malpica JA, Benito B (2008) Susceptibility assessment of earthquake-triggered landslides in El Salvador using logistic regression. [Retrieved on November 6, 2010 from http://oa.upm.es/2325/1/INVE_MEM_2008_54925.pdf]
  5. Hasi B, Ishii Y, Maruyama K, et al. (2010) Controls on distribution and scale of earthquake-induced landslides caused by the Iwate-Miyagi Inland earthquake in 2008, Japan. European Geosciences Union (EGU) General Assembly 2010, held 2–7 May, 2010 in Vienna, Austria. p 3827Google Scholar
  6. Hasi B, Ishii Y, Suzuki S et al. (2009) Landslides distribution nearby earthquake seismic fault of the Chuetsu-offshore earthquake, Niigata Prefecture in 2007. [Retrieved on November 6, 2010 from http://wwwsoc.nii.ac.jp/jepsjmo/cdrom/2009cd-rom/program/session/pdf/Y167/Y167-P003_e.pdf]
  7. Huang RQ et al. (2009) Geohazard Assessment of the Wenchuan earthquake. Beijing: Science Press. (In Chinese)Google Scholar
  8. Huang RQ, Pei XJ, Li TB (2008a) Basic characteristics and formation mechanism of the largest-scale landslide at Daguangbao occurred during the Wenchuan Earthquake. Journal of Engineering Geology 16(6): 730–741.(In Chinese)Google Scholar
  9. Huang RQ, XU Q et al. (2008b) Catastrophic landslides in China. Beijing: Science Press. (In Chinese)Google Scholar
  10. Huang RQ, Li WL (2008) Research on development and distribution rules of geohazards induced by Wenchuan earthquake on 12th May,2008. Chinese Journal of Rock Mechanics and Engineering 27(12): 2585–2592. (In Chinese)Google Scholar
  11. Huang RQ, Li WL (2009) Fault effect analysis of geo-hazard triggered by Wenchuan earthquake. Journal of Engineering Geology 17(1): 19–28.(In Chinese)Google Scholar
  12. Jibson RW, Harp EL, Michael JA (1998) A method for producing digital probabilistic seismic landslide hazard maps: an example from the Los Angeles, California, area. U.S. Geological Survey Open-file Report: 98–113Google Scholar
  13. Keefer DK (1984) Landslides caused by earthquakes. Geological Society of America Bulletin, 95: 406–421CrossRefGoogle Scholar
  14. Li CY, Wei ZY (2009) Deformation styles of the northernmost surface rupture zone of the MS 8.0 Wenchuan earthquake. Seismology and Geology 31(1): 1–8.(In Chinese)Google Scholar
  15. Li Y, Huang RQ et al. (2009) Basic features and research progresses of Wenchuan Ms 8.0 earthquake. Journal of Sichuan University (Engineering Science edition) 41(3): 7–25. (In Chinese)Google Scholar
  16. Marui H Landslide Disaster Caused by Inland Earthquake. [Retrieved on November 6, 2010 from http://www.saboint.org/case/2007pakistan.pdf]
  17. McCrink TP and Real CR (1996) Evaluation of the Newmark method for mapping earthquake-induced landslide hazards in the Laurel 7.5′ quadrangle, Santa Cruz County, California. California Division of Mines and Geology Final Technical Report for U.S. Geological Survey Contract 143-93-G-2334, U.S. Geological Survey, Reston Virginia, p31Google Scholar
  18. Ramos-C, AM, Rodriguez-P, C. E (2009) Ground strong motion and landslides relationships: the lamaprieta earthquake analysis. [Retrieved on November 6, 2010 from http://fing.javeriana.edu.co/geofisico/ARCHIVOS/8NCEE-0251.pdf]
  19. Sato HP, Harp EL (2009) Interpretation of earthquake-induced landslides triggered by the 12 May 2008, M7.9 Wenchuan earthquake in the Beichuan area, Sichuan Province, China using satellite imagery and Google Earth. Landslides 6:153–159CrossRefGoogle Scholar
  20. Tang CA, Zuo YJ, Qin SF et al. (2008) Landslide shallow layer spalling cast modes and its kinetics explanation in Wenchuan earthquake. In: Song SW (eds.), The proceedings of the tenth national rock mechanics and engineering science conference, Chengdu, China. pp 258–262. (In Chinese)Google Scholar
  21. Westen CV, Gorum T, Fan XM et al. (2010) Distribution pattern of earthquake-induced landslides triggered by the 12 May 2008 Wenchuan Earthquake. Geophysical Research Abstracts 12.(EGU2010-4437)Google Scholar
  22. Wang J, Yao LK, Arshad H (2010) Analysis of earthquake-triggered failure mechanisms of slopes and sliding surfaces. Journal of Mountain Science 7:282–290CrossRefGoogle Scholar
  23. Xu C, Dai FC, Yao X (2009) Incidence number and affected area of Wenchuan Earthquake-induced landslides. Review of Science and Technology 27(11): 79–81 (In Chinese)Google Scholar
  24. Xu Q, Huang RQ (2008) Kinetics characteristics of large landslides triggered by May 12th Wenchuan earthquake. Journal of Engineering Geology 16(6): 721–729. (In Chinese)Google Scholar
  25. Xu Q, Pei XJ, Huang RQ et al. (2009) Large-scale landslides induced by the Wenchuan earthquake. Science Press. (In Chinese)Google Scholar
  26. Xu XW, Wen XZ, Ye JQ et al. (2008) The MS 8.0 Wenchuan earthquake surface ruptures and it’s seismogenic structure. Seismology and geology 30(3): 597–628. (In Chinese)Google Scholar

Copyright information

© Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.State Key Laboratory of Geohazard Prevention and Geoenvironment ProtectionChengdu University of TechnologyChengduChina

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