气候变化领域集成服务门户(CCPortal): Linking earthquake-triggered paleolandslides to their seismic source and to the possible seismic event that originated them in a portion of the Argentine Precordillera (31°

CCPortal

DOI	10.1007/s11069-020-04447-1
	Linking earthquake-triggered paleolandslides to their seismic source and to the possible seismic event that originated them in a portion of the Argentine Precordillera (31°–33°S)
	Junquera-Torrado S.; Moreiras S.M.; Rodríguez-Peces M.J.; Sepúlveda S.A.
发表日期	2021
ISSN	0921030X
起始页码	43
结束页码	78
卷号	106 期号:1
英文摘要	A total of 36 rock slides were selected for analysing a probable seismic source in the active Andean Precordillera (31°–33°S), the most seismic region of Argentina. Seven of these slope instabilities were selected for in-depth analysis in the field as a function of the most frequent class, lithological susceptibility and field accessibility. Reconstructing the topography previous to collapse and using geotechnical parameters extracted from field data in conjunction with geomechanical testing, the rock slides were modelled using pseudostatic limit equilibrium analyses for the obtention of the critical probabilistic acceleration (ac) required to generate the instability under unsaturated conditions and considering both the horizontal and vertical seismic components. To perform a probabilistic estimation of ac, the parameters in relation to the generalized Hoek–Brown failure criterion were selected to operate statistically using 2D SLIDE 8.0 software. Applying inversely Ground Motion Prediction Equations (GMPEs) and concerning the distance to the studied paleolandslide, a possible earthquake inducing a seismic coefficient (kh) ≥ ac was determined. Therefore, a near active fault(s) capable of generating an earthquake magnitude inducing a Peak Ground Acceleration (PGA) ≥ ac at the paleolandslide location was designated as the possible seismogenic source of the slope instability. Intersecting these results, potential paleoseismic events which could have caused several slope instabilities were determined. Thus, a new methodology was developed, which allowed to determine the main seismogenic sources capable of inducing the modelled instabilities in each studied subarea in the Precordillera. © 2021, Springer Nature B.V.
关键词	2D modelling Active fault Argentina Landslides Precordillera Slope stability analysis
英文关键词	active fault; earthquake trigger; landslide; numerical model; seismic source; seismicity; slope stability; stability analysis; Argentina; Precordillera; Argentinidae
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206311
作者单位	CONICET – IANIGLA- CCT Mendoza – Argentina, Av. Dr. Ruiz Leal s/n. Parque General San Martín, Mendoza, 5500, Argentina; Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, A. Brown s/n. Chacras de Coria, CPA M5528AHB, Luján, Mendoza, Argentina; Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, José Antonio Novais 12, Madrid, Spain; Departamento de Geología, Universidad de Chile, Plaza Ercilla 803, Santiago, Chile; Instituto de Ciencias de La Ingeniería, Universidad de O´Higgins, Libertador Bernardo O´Higgins 611, Rancagua, Chile
推荐引用方式 GB/T 7714	Junquera-Torrado S.,Moreiras S.M.,Rodríguez-Peces M.J.,等. Linking earthquake-triggered paleolandslides to their seismic source and to the possible seismic event that originated them in a portion of the Argentine Precordillera (31°–33°S)[J],2021,106(1).
APA	Junquera-Torrado S.,Moreiras S.M.,Rodríguez-Peces M.J.,&Sepúlveda S.A..(2021).Linking earthquake-triggered paleolandslides to their seismic source and to the possible seismic event that originated them in a portion of the Argentine Precordillera (31°–33°S).Natural Hazards,106(1).
MLA	Junquera-Torrado S.,et al."Linking earthquake-triggered paleolandslides to their seismic source and to the possible seismic event that originated them in a portion of the Argentine Precordillera (31°–33°S)".Natural Hazards 106.1(2021).