Distribution pattern of coseismic landslides triggered by the 2014 Ludian, Yunnan, China Mw6.1 earthquake: special controlling conditions of local topography

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• 作者：Chen Xiaoli ; Zhou Qing ; Liu Chunguo
• 关键词：The 2014 Ludian earthquake ; Coseimic landslides ; Landslide area ratios ; Local topographic conditions ; Seismic source process
• 刊名：Landslides
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：12
• 期：6
• 页码：1159-1168
• 全文大小：2,083 KB
• 参考文献：Ashford SA, Sitar N, Lysmer J (1997) Topographic effects on the seismic response of steep slopes. Bull Seismol Soc Am 87(3):701-09
  Bommer JJ, Carlos E, Rodr′?guez CR (2002) Earthquake-induced landslides in Central America. Eng Geol 63:189-20CrossRef
  Chang ZF, Zhou RJ, An XW, Chen YJ, Zhou QY, Li JL (2014) Late-Quaternary activity of the Zhaotong-Ludian fault zone and its tectonic implication. Seismol Geol 36(4):1260-279 (in Chinese)
  Chang ZF, Chen XL, An XW, Cui JW (2015) Why the 2014 Ludian, Yunnan, China Ms 6.5 earthquake triggered an unusually large landslide? Nat Hazards Earth Syst Sci Discuss 3:367-99CrossRef
  Chen XL, Ran HL, Yang WT (2012) Evaluation of factors controlling large earthquake-induced landslides by the Wenchuan earthquake. Nat Hazards Earth Syst Sci 12:3645-657CrossRef
  Chigira M, Yagi H (2006) Geological and geomorphological characteristics of landslides triggered by the 2004 Mid Niigta prefecture earthquake in Japan. Eng Geol 82(4):202-21CrossRef
  Dai FC, Xu C, Yao X, Xu L, Tu XB, Gong QM (2011) Spatial distribution of landslides triggered by the 2008 Ms 8.0 Wenchuan earthquake, China. J Asian Earth Sci 40(4):883-95CrossRef
  Fang LH, Wu JP, Wang WL, Lü ZY, Wang CZ, Yang T, Zhong SJ (2014) Relocation of the aftershock sequance of the Ms6.5 Ludian earthquake and its seismogenic structure. Seismol Geol 36(4):1171-185
  Gorum T, Fan X, van Westen CJ, Huang RQ, Xu Q, Tang C, Wang G (2011) Distribution pattern of earthquake-induced landslides triggered by the 12 May 2008 Wenchuan earthquake. Geomorphology 133(3):152-67CrossRef
  Gorum T, van Westen CJ, Korup O, van der Meijde M, Fan X, van der Meer FD (2013) Complex rupture mechanism and topography control symmetry of mass-wasting pattern, 2010 Haiti earthquake. Geomorphology 184:127-38CrossRef
  Guzzetti F, Carrara A, Cardinali M, Reichenbach P (1999) Landslide hazard evaluation: a review of current techniques and their application in a multi-scale study, Central Italy. Geomorphology 31:181-16CrossRef
  Harp EL, Jibson RW (1996) Landslides triggered by the 1994 Northridge, California earthquake. Bull Seismol Soc Am 86(1B):S319–S332
  Huang RQ (2015) Understanding the mechanism of large-scale landslides. In: Lollino G (ed) Engineering geology for society and territory—volume 2. Springer International Publishing, Switzerland
  Huang RQ, Li WL (2009) Analysis of the geo-hazards triggered by the 12 May 2008 Wenchuan Earthquake, China. Bull Eng Geol Environ 68(3):363-71CrossRef
  Institute for Earthquake Engineering Survey of Yunnan Province (2014) Assessment report on seismic safety of the project site at the dammed lake on the Niulanjiang River nearby Hongshiyan. Yunnan Province, in Chinese
  Jibson RW, Harp EL, Schulz W, Keefer DK (2004) Landslides triggered by the 2002 M-7.9 Denali Fault, Alaska, earthquake and the inferred nature of the strong shaking. Earthquake Spectra 20:669-91CrossRef
  Katz O, Morgan JK, Aharonov E, Dugan B (2014) Controls on the size and geometry of landslides: insights from discrete element numerical simulations. Geomorphology 220:104-13CrossRef
  Keefer DK (1984) Landslides caused by earthquakes. Geol Soc Am Bull 95(4):406-21CrossRef
  Keefer DK (2002) Investigating landslides caused by earthquakes—a historical review. Surv Geophys 23(6):473-10CrossRef
  Khazai B, Sitar N (2003) Evaluation of factors controlling earthquake-induced landslides caused by Chi-Chi earthquake and comparison with the Northridge and Loma Prieta events. Eng Geol 71(1-):79-5
  Malamud BM, Turcotte DL, Guzzetti F, Reichenbach P (2004) Landslide inventory and their statistical properties. Earth Surf Process Landforms 29:687-11CrossRef
  Meunier P, Hovius N, Haines JA (2007) Regional patterns of earthquake-triggered landslides and their relation to ground motion. Geophys Res Lett 34, L20408. doi:10.-029/-007GL031337 CrossRef
  Meunnier P, Uchida T, Hovius N (2013) Landslide patterns reveal the sources of large earthquakes. Earth Planetary Sci Lett 363:27-3. doi:10.-016/?j.?epsl.-012.-2.-18 CrossRef
  Montgomery DR, Brandon MT (2002) Topographic controls on erosion rates in tectonically active mountain ranges. Earth Planet Sci Lett 201:481-89CrossRef
  Parise M, Jibson RW (2000) A seismic landslide susceptibility rating of geologic units based on analysis of characteristics of landslides triggered by the 17 January, 1994 Northridge, California earthquake. Eng Geol 58:251-70CrossRef
  Qi SW, Xu Q, Lan HX, Zhang B, Liu JY (2010) Spatial distribution analysis of landslides triggered by 2008.5.12 Wenchuan Earthquake, China. Eng Geol 116:95-08CrossRef
  Rodr?′guez CE, Bommerb JJ, Chandlerb RJ (1999) Earthquake-induced landslides: 1980-997. Soil Dyn Earthq Eng 18:325-46CrossRef
  Sato HP, Hasegawa H, Fujiwara S, Tobita M, Koarai M, Une H, Iwahashi J (2007) Interpretation of landslide distribution triggered by the 2005 Northern Pakistan earthquake using SPOT 5 image
• 作者单位：Chen Xiaoli (1)
  Zhou Qing (1)
  Liu Chunguo (2)
  
  1. Key Lab of Active Tectonics and Volcano, Institute of Geology, China Earthquake Administration, Beijing, 100029, China
  2. China Earthquake Networks Center, Beijing, 100045, China
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Applied Geosciences
  Geography
  Agriculture
  Civil Engineering
  
• 出版者：Springer Berlin Heidelberg
• ISSN：1612-5118

文摘

The distribution of coseismic landslides triggered by the 2014 Ludian, Yunnan, China Mw6.1 earthquake exhibits a particular pattern. They do not concentrate linearly along a fault (e.g., the causative fault) or a tectonic zone, instead mostly appear in the southeast and west of the epicenter of the main shock in a relatively clustering manner, 5- km distant. Majority of them occur at the river reaches with cliffs, including the unusually large-scale landslide at the Hongshiyan village, north bank of the Njiulanjiang River. Such a phenomenon implies that local conditions of terrain of the river valley might control the distribution of coseismic landslides induced by the Ludian event, which is of a moderate magnitude. To verify quantitatively this intuitive conjecture, this study proposes a parameter of the relative landslide area ratio, with which a statistics is made for landslide area ratios and local terrain conditions. The results demonstrate that this ratio value is highly correlated with the three terrain variables, i.e., slope angle, local relief, and slope aspect (facing direction of the slope). In the study area, most coseismic landslides occur at loci with slope angle greater than 30°-0°, particularly the river reaches with slope angle exceeding 50°. Localized distribution of the landslides is positively correlated with terrain relief, of which majority lies at places with altitude differences over 400 m. The side slopes facing south and southeast are most prone to occurrence of coseismic landslides, which may be explained by the mainshock process that the seismogenic fault ruptured from northwest to southeast and from deep to shallow. It may also be an account on which there is no coseismic landslide southwest of the epicenter, though there also exist river reaches with steep slopes. It means that the seismic source process can pose a constraint on the control of local terrain conditions on the distribution pattern of earthquake-induced landslides. Keywords The 2014 Ludian earthquake Coseimic landslides Landslide area ratios Local topographic conditions Seismic source process