DOI: 10.1007/s11069-020-04184-5
论文题名: Simple rules for choosing fault planes in almost real-time post-earthquake loss assessments
作者: Salgado-Gálvez M.A. ; Ordaz M. ; Huerta B. ; Singh S.K. ; Pérez-Campos X.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 104, 期: 1 起始页码: 639
结束页码: 658
语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168716
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
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]. Natural Hazards,2020-01-01,104(1)