DATABASE OF LANDSLIDES TRIGGERED BY 2015 GORKHA(NEPAL) MW7.8 EARTHQUAKE

doi:10.3969/j.issn.0253-4967.2018.05.011

Abstract

Abstract: In this study, a detailed database of landslides triggered by the 25 April 2015 Gorkha (Nepal)M_W7.8 earthquake is constructed based on visual interpretation of pre- and post-earthquake high-resolution satellite images and field reconnaissance. Results show the earthquake triggered at least 47 200 landslides, which have a NWW direction spatial distribution, similar with the location and strike of the seismogenic fault. The landslides are of a total area about 110km² and an oval distribution area about 35 700km². On the basis of a scale relationship between landslide area (A)and volume (V), V=1.314 7×A^{1.208 5}, the total volume of the coseismic landslides is estimated to be about 9.64×10⁸m³. In the oval landslide distribution area, the landslide number density, area density, and volume density were calculated and the results are 1.32km^-2, 0.31%, and 0.027m, respectively. This study provides a detailed and objective inventory of landslides triggered by the Gorkha earthquake, which provides very important and essential basic data for study of mechanics of coseismic landslides, spatial pattern, distribution law, and hazard assessment. In addition, the landslide database related to an individual earthquake also provides an important earthquake case in a subduction zone for studying landslides related to multiple earthquakes from a global perspective.

Key words: Gorkha M_W7.8 earthquake, coseismic landslide, landslide number, landslide area, visual interpretation

摘要： 文中基于地震前后高分辨率卫星影像的人工目视解译方法，结合野外实地考察，建立2015年4月25日尼泊尔廓尔喀M_W7.8地震触发滑坡数据库。结果表明本次地震触发了至少47 200处滑坡，这些滑坡在空间上大体呈NWW向分布，与地震发震构造位置与走向大体一致。这些滑坡的总面积为110km²，分布在1个面积约35 700km²的椭圆形区域内。根据地震滑坡"面积（A）-体积（V）"幂律关系式V=1.314 7×A^{1.208 5}，估计这些滑坡的总体积约9.64×10⁸m³。在滑坡分布的椭圆形区域内，滑坡点密度、面密度、体积密度分别为1.32km^-2、0.31%与0.027m。文中提供了1个全面详细的廓尔喀地震滑坡数据库，为分析地震滑坡机制、分布样式、规律与危险性评估等提供了重要的基础数据，也为全球视角下的多震例地震滑坡研究提供了1个俯冲带地区推覆断层型地震滑坡实例。

关键词: 廓尔喀M_W7.8地震, 同震滑坡, 滑坡数量, 滑坡面积, 目视解译

CLC Number:

P315.9

XU Chong, TIAN Ying-ying, SHEN Ling-ling, MA Si-yuan, XU Xi-wei, ZHOU Ben-gang, HUANG Xue-qiang, MA Jun-xue, CHEN Xi. DATABASE OF LANDSLIDES TRIGGERED BY 2015 GORKHA(NEPAL) M_W7.8 EARTHQUAKE[J]. SEISMOLOGY AND GEOLOGY, 2018, 40(5): 1115-1128.

许冲, 田颖颖, 沈玲玲, 马思远, 徐锡伟, 周本刚, 黄学强, 马俊学, 陈曦. 2015年尼泊尔廓尔喀M_W7.8地震滑坡数据库[J]. 地震地质, 2018, 40(5): 1115-1128.

References

吴玮莹, 许冲. 2018. 2014年鲁甸M_W6.2地震触发滑坡新编目［J］. 地震地质, 40(5):1140-1148. doi:10.39691j.issn.0753-4967.2018.05.013. WU Wei-ying, XU Chong. 2018. A new inventory of landslides triggered by the 2014 Ludian M_W6.2 earthquake［J］. Seismology and Geology, 40(5):1140-1148(in Chinese).
许冲, 王世元, 徐锡伟, 等. 2018. 2017年8月8日四川省九寨沟M_S7.0地震触发滑坡全景［J］. 地震地质, 40(1):232-260. doi:10.3969/j.issn.0253-4967.2018.01.017. XU Chong, WANG Shi-yuan, XU Xi-wei, et al. 2018. A panorama of landslides triggered by the 8 August 2017 Jiuzhaigou, Sichuan M_S7.0 earthquake［J］. Seismology and Geology, 40(1):232-260(in Chinese).
许冲, 徐锡伟, 沈玲玲, 等. 2014. 2014年鲁甸M_S6.5地震触发滑坡编录及其对一些地震参数的指示［J］. 地震地质, 36(4):1186-1203. doi:10.3969/j.issn.0253-4967.2014.04.020. XU Chong, XU Xi-wei, SHEN Ling-ling, et al. 2014. Inventory of landslides triggered by the 2014M_S6.5 Ludian earthquake and its implications on several earthquake parameters［J］. Seismology and Geology, 36(4):1186-1203(in Chinese).
张杰, 王宇, 张红兵, 等. 2014. 云南彝良9·07地震次生地质灾害特征分析［J］. 工程地质学报, 22(2):280-291. ZHANG Jie, WANG YU, ZHANG Hong-bing, et al. 2014. Characteristics of secondary geological hazards induced by Yiliang 9·07 earthquakes in Yunnan Province［J］. Journal of Engineering Geology, 22(2):280-291(in Chinese).
Adams J. 1980. Contemporary uplift and erosion of the Southern Alps, New Zealand［J］. Geological Society of America Bulletin, 91(1, Part Ⅱ):1-114.
Adhikari L B, Gautam U P, Koirala B P, et al. 2015. The aftershock sequence of the 2015 April 25 Gorkha-Nepal earthquake［J］. Geophysical Journal International, 203(3):2119-2124.
Alfaro P, Delgado J, García-Tortosa F J, et al. 2012. Widespread landslides induced by the M_W5.1 earthquake of 11 May 2011 in Lorca, SE Spain［J］. Engineering Geology, 137-138:40-52.
Avouac J P, Meng L, Wei S, et al. 2015. Lower edge of locked Main Himalayan Thrust unzipped by the 2015 Gorkha earthquake［J］. Nature Geoscience, 8:701-711.
British Geological Survey, Earthquakes without Frontiers, Durham University. 2015. 2015 Nepal Earthquakes mapped landslide intensity(Revision 4.0-19 June 2015)［EB/OL］. https://data.hdx.rwlabs.org/group/nepal-earthquake.
Elliott J R, Jolivet R, González P J, et al. 2016. Himalayan megathrust geometry and relation to topography revealed by the Gorkha earthquake［J］. Nature Geoscience, 9:174-180.
Fukuoka H, Sassa K, Scarascia-Mugnozza G. 1997. Distribution of landslides triggered by the 1995 Hyogo-ken Nanbu earthquake and long runout mechanism of the Takarazuka Golf Course Landslide［J］. Journal of Physics of the Earth, 45(2):83-90.
Gnyawali K R, Adhikari B R. 2017. Spatial relations of earthquake induced landslides triggered by 2015 Gorkha earthquake M_W=7.8［R］. Workshop on World Landslide Forum:85-93.
Gorum T, Korup O, van Westen C J, et al. 2014. Why so few?Landslides triggered by the 2002 Denali earthquake, Alaska［J］. Quaternary Science Reviews, 95:80-94.
Govi M. 1977. Photo-interpretation and mapping of the landslides triggered by the Friuli earthquake(1976)［J］. Bulletin of Engineering Geology and the Environment, 15(1):67-72.
Harp E L, Jibson R W. 1995. Inventory of landslides triggered by the 1994 Northridge, California earthquake［R/OL］. US Geological Survey. http://pubs.usgs.gov/of/1995/ofr-95-0213/plate1.gif; http://geo-nsdi.er.usgs.gov/metadata/open-file/95-213/.
Harp E L, Keefer D K. 1989. Earthquake-induced landslides, Mammoth Lakes area, California［R］. Landslides in Central California:San Francisco and Central California, July 20-29, 1989; Brown Ⅲ W M. Field Trip Guideb, vol T381, Washington D C, AGU:48-53.
Harp E L, Keefer D K. 1990. Landslides triggered by the earthquake［R］. Rymer M J, Ellsworth W L(eds). The Coalinga, California, Earthquake of May 2, 1983. US Geological Survey Professional Paper 1487:335-348.
Harp E L, Keefer D K, Sato H P, et al. 2011. Landslide inventories:The essential part of seismic landslide hazard analyses［J］. Engineering Geology, 122(1-2):9-21.
Harp E L, Tanaka K, Sarmiento J, et al. 1984. Landslides from the May 25-27, 1980, Mammoth Lakes, California, earthquake sequence［R］. US Geological Survey Miscellaneous Investigations Series Map I-1612, Reston Va:The Survey; Denver, CO:For Sale by Branch of Distribution, Scale 1:62, 500.
Harp E L, Wieczorek G F, Wilson R C. 1978. Earthquake-induced landslides from the February 4, 1976 Guatemala earthquake and their implications for landslide hazard reduction［R］. Washington:US Geological Survey. Document number:5175. http://cidbimena.desastres.hn/pdf/eng/doc5175/doc5175.htm:20 pages.
Harp E L, Wilson R C, Wieczorek G F. 1981. Landslides from the February 4, 1976, Guatemala earthquake［R］. US Geological Survey Professional Paper 1204-A:35 pages.
Hashash Y M A, Tiwari B, Moss R E S, et al. 2015. Geotechnical field reconnaissance:Gorkha(Nepal)earthquake of April 25, 2015 and related shaking sequence［R］. Geotechnical Extreme Event Reconnaisance GEER Association Report No. GEER-040, https://works.bepress.com/rmoss/47:250 pages.
Hubbard J, Almeida R, Foster A, et al. 2016. Structural segmentation controlled the 2015M_W7.8 Gorkha earthquake rupture in Nepal［J］. Geology, 44(8):639-642.
Jibson R W, Keefer D K. 1989. Statistical analysis of factors affecting landslide distribution in the new Madrid seismic zone, Tennessee and Kentucky［J］. Engineering Geology, 27(1-4):509-542.
Kargel J S, Leonard G J, Shugar D H, et al. 2016. Geomorphic and geologic controls of geohazards induced by Nepal's 2015 Gorkha earthquake［J］. Science, 351(6269):aac8353.
Keefer D K. 2000. Statistical analysis of an earthquake-induced landslide distribution:The 1989 Loma Prieta, California event［J］. Engineering Geology, 58(3-4):231-249.
Kobayashi H, Koketsu K, Miyake H, et al. 2016. Joint inversion of teleseismic, geodetic, and near-field waveform datasets for rupture process of the 2015 Gorkha, Nepal, earthquake［J］. Earth, Planets and Space, 68(1):1-8.
Martha T R, Govindharaj K B, Kumar K V. 2015. Damage and geological assessment of the 18 September 2011M_W6.9 earthquake in Sikkim, India using very high resolution satellite data［J］. Geoscience Frontiers, 6(6):793-805.
Martha T R, Roy P, Mazumdar R, et al. 2017. Spatial characteristics of landslides triggered by the 2015M_W7.8(Gorkha)and M_W7.3(Dolakha)earthquakes in Nepal［J］. Landslides, 14(2):697-704.
Marzorati S, Luzi L, Amicis M D. 2002. Rock falls induced by earthquakes:A statistical approach［J］. Soil Dynamics and Earthquake Engineering, 22(7):565-577.
Morimoto R. 1951. Geology of Imaichi district with special reference to the earthquake of Dec. 26, 1949(Ⅱ)［R］. Bulletin of Earthquake Research Institute, University of Tokyo, 29:349-358.
Morton D M. 1971. Seismically triggered landslides above San Fernando Valley［R］. California Geology, Special San Fernando Earthquake Edition, 24(4-5). http://www.johnmartin.com/earthquakes/eqpapers/00000022.htm.
Pearce A J, O'Loughlin C L. 1985. Landsliding during a M7.7 earthquake:Influence of geology and topography［J］. Geology, 13(12):855-858.
Plafker G, Ericksen G E, Concha J F. 1971. Geological aspects of the May 31, 1970, Peru earthquake［J］. Bulletin of the Seismological Society of America, 61(3):543-578.
Powell C M, Conaghan P J. 1973. Plate tectonics and the Himalayas［J］. Earth and Planetary Science Letters, 20(1):1-12.
Roback K, Clark M K, West A J, et al. 2017. Map data of landslides triggered by the 25 April 2015M_W7.8 Gorkha, Nepal earthquake［R］. US Geological Survey data release.
Royden L H, Burchfiel B C, van der Hilst R D. 2008. The geological evolution of the Tibetan plateau［J］. Science, 321(5892):1054-1058.
Sato H P, Hasegawa H, Fujiwara S, et al. 2007. Interpretation of landslide distribution triggered by the 2005 northern Pakistan earthquake using SPOT-5 imagery［J］. Landslides, 4(2):113-122.
Schuster R L, Nieto A S, O'Rourke T D, et al. 1996. Mass wasting triggered by the 5 March 1987 Ecuador earthquakes［J］. Engineering Geology, 42(1):1-23.
Sekiguchi T, Sato H P. 2006. Feature and distribution of landslides induced by the Mid Niigata Prefecture earthquake in 2004, Japan［J］. Journal of the Japan Landslide Society, 43(3):142-154.
Sepúlveda S A, Serey A, Lara M, et al. 2010. Landslides induced by the April 2007 Aysén Fjord earthquake, Chilean Patagonia［J］. Landslides, 7(4):483-492.
Sharma K, Saraf A K, Das J, et al. 2018. Mapping and change detection study of Nepal -2015 earthquake induced landslides［J］. Journal of the Indian Society of Remote Sensing, 46(4):605-615.
Sotiris V, George P, Spyros P. 2016. Map of co-seismic landslides and surface ruptures for the M7.8 kaikoura, New Zealand earthquake［EB/OL］. http://eqgeogr.weebly.com/blog/map-of-co-seismic-landslides-surface-ruptures-for-the-m-78-kaikoura-new-zealand-earthquake-version-2.
Tian Y, Xu C, Xu X, et al. 2016. Detailed inventory mapping and spatial analyses to landslides induced by the 2013M_S6.6 Minxian earthquake of China［J］. Journal of Earth Science, 27(6):1016-1026.
Tiwari B, Ajmera B, Dhital S. 2017. Characteristics of moderate-to large-scale landslides triggered by the M_W7.82015 Gorkha earthquake and its aftershocks［J］. Landslides, 14(4):1297-1318.
Tsou C Y, Chigira M, Higaki D, et al. 2018. Topographic and geologic controls on landslides induced by the 2015 Gorkha earthquake and its aftershocks:An example from the Trishuli Valley, central Nepal［J］. Landslides, 15(5):953-965.
Upreti B N. 1999. An overview of the stratigraphy and tectonics of the Nepal Himalaya［J］. Journal of Asian Earth Sciences, 17(5-6):577-606.
Wang W N, Nakamura H, Tsuchiya S, et al. 2002. Distributions of landslides triggered by the Chi-chi earthquake in central Taiwan on September 21, 1999［J］. Landslides, 38(4):318-326.
Wartman J, Dunham L, Tiwari B, et al. 2013. Landslides in eastern Honshu induced by the 2011 Tohoku earthquake［J］. Bulletin of the Seismological Society of America, 103(2B):1503-1521.
Wasowski J, Gaudio V D, Pierri P, et al. 2002. Factors controlling seismic susceptibility of the Sele valley slopes:The case of the 1980 Irpinia earthquake re-examined［J］. Surveys in Geophysics, 23(6):563-593.
Xu C. 2015. Preparation of earthquake-triggered landslide inventory maps using remote sensing and GIS technologies:Principles and case studies［J］. Geoscience Frontiers, 6(6):825-836.
Xu C, Ma S, Tan Z, et al. 2018. Landslides triggered by the 2016M_j 7.3 Kumamoto, Japan, earthquake［J］. Landslides, 15(3):551-564.
Xu C, Shyu J B H, Xu X. 2014a. Landslides triggered by the 12 January 2010 Port-au-Prince, Haiti, M_W=7.0 earthquake:Visual interpretation, inventory compiling, and spatial distribution statistical analysis［J］. Natural Hazards and Earth System Sciences, 14(7):1789-1818.
Xu C, Tian Y, Zhou B, et al. 2017. Landslide damage along Araniko Highway and Pasang Lhamu Highway and regional assessment of landslide hazard related to the Gorkha, Nepal earthquake of 25 April 2015［J］. Geoenvironmental Disasters, 4(1):14.
Xu C, Xu X. 2014b. Statistical analysis of landslides caused by the M_W6.9 Yushu, China, earthquake of April 14, 2010［J］. Natural Hazards, 72(2):871-893.
Xu C, Xu X, Shen L, et al. 2016a. Optimized volume models of earthquake-triggered landslides［J］. Scientific Reports, 6:29797.
Xu C, Xu X, Shyu J B H. 2015a. Database and spatial distribution of landslides triggered by the Lushan, China M_W6.6 earthquake of 20 April 2013［J］. Geomorphology, 248:77-92.
Xu C, Xu X, Shyu J B H, et al. 2014c. Landslides triggered by the 22 July 2013 Minxian-Zhangxian, China, M_W5.9 earthquake:Inventory compiling and spatial distribution analysis［J］. Journal of Asian Earth Sciences, 92:125-142.
Xu C, Xu X, Shyu J B H, et al. 2015b. Landslides triggered by the 20 April 2013 Lushan, China, M_W6.6 earthquake from field investigations and preliminary analyses［J］. Landslides, 12(2):365-385.
Xu C, Xu X, Tian Y, et al. 2016b. Two comparable earthquakes produced greatly different coseismic landslides:The 2015 Gorkha, Nepal and 2008 Wenchuan, China events［J］. Journal of Earth Science, 27(6):1008-1015.
Xu C, Xu X, Yao Q, et al. 2013a. GIS-based bivariate statistical modelling for earthquake-triggered landslides susceptibility mapping related to the 2008 Wenchuan earthquake, China［J］. Quarterly Journal of Engineering Geology and Hydrogeology, 46(2):221-236.
Xu C, Xu X, Yao X, et al. 2014d. Three(nearly)complete inventories of landslides triggered by the May 12, 2008 Wenchuan M_W7.9 earthquake of China and their spatial distribution statistical analysis［J］. Landslides, 11(3):441-461.
Xu C, Xu X, Yu G. 2013b. Landslides triggered by slipping-fault-generated earthquake on a plateau:An example of the 14 April 2010, M_S7.1, Yushu, China earthquake［J］. Landslides, 10(4):421-431.
Yagi H, Sato G, Higaki D, et al. 2009. Distribution and characteristics of landslides induced by the Iwate-Miyagi Nairiku earthquake in 2008 in Tohoku District, Northeast Japan［J］. Landslides, 6(4):335-344.
Zhang J Q, Liu R K, Deng W, et al. 2016. Characteristics of landslide in Koshi River Basin, central Himalaya［J］. Journal of Mountain Science, 13(10):1711-1722.

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