气候变化领域集成服务门户(CCPortal): Simple rules for choosing fault planes in almost real-time post-earthquake loss assessments

CCPortal

DOI	10.1007/s11069-020-04184-5
	Simple rules for choosing fault planes in almost real-time post-earthquake loss assessments
	Salgado-Gálvez M.A.; Ordaz M.; Huerta B.; Singh S.K.; Pérez-Campos X.
发表日期	2020
ISSN	0921030X
起始页码	639
结束页码	658
卷号	104 期号:1
英文摘要	Rapid post-earthquake loss assessments require as input the ground motion footprint of the event. These footprints account for the geographical distribution of the seismic intensities, which, at the same time, depend on characteristics of the event such as magnitude, location, depth, focal mechanism, and orientation of the fault plane. For most earthquakes with MW ≥ 5, moment tensor solution and, hence, the characteristics of the two nodal-planes are available. This paper proposes a simple set of rules for choosing the likely fault plane from the two nodal planes, based on a previous characterization of the seismic sources in the area under study that are commonly used in probabilistic seismic hazard analyses. With the selection of the fault plane, a critically required information for generating the parametric ground motion footprint is at hand in a matter of minutes, to be later used in the loss assessment phase. These almost real-time loss assessments are useful for different disaster risk management activities ranging from emergency planning and management to triggers of parametric insurance instruments. The application of this methodology is illustrated for three events, two in Mexico and another in Guatemala, where loss results and their geographical distributions at country level in some cases are highly sensitive to the selection of the correct nodal plane as the fault plane, showing that the proposed rules yield congruent results with the observed and recorded ground motions. © 2020, Springer Nature B.V.
关键词	Earthquake risk Hazard footprints R-CRISIS Real-time loss assessment Selecting fault plane from nodal planes
英文关键词	earthquake damage; earthquake magnitude; fault plane; focal mechanism; geographical distribution; ground motion; hazard assessment; moment tensor; probability; real time; risk assessment; seismic hazard; tectonic setting
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/205917
作者单位	ERN, Mexico City, Mexico; Centre Internacional de Metodes Numerics en Enginyeria (CIMNE), Barcelona, Spain; Instituto de Ingeniería, Universidad Nacional Autónoma de México, Mexico City, Mexico; Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico
推荐引用方式 GB/T 7714	Salgado-Gálvez M.A.,Ordaz M.,Huerta B.,et al. Simple rules for choosing fault planes in almost real-time post-earthquake loss assessments[J],2020,104(1).
APA	Salgado-Gálvez M.A.,Ordaz M.,Huerta B.,Singh S.K.,&Pérez-Campos X..(2020).Simple rules for choosing fault planes in almost real-time post-earthquake loss assessments.Natural Hazards,104(1).
MLA	Salgado-Gálvez M.A.,et al."Simple rules for choosing fault planes in almost real-time post-earthquake loss assessments".Natural Hazards 104.1(2020).