DOI: 10.1002/2016GL071263
论文题名: Slip heterogeneity and directivity of the ML 6.0, 2016, Amatrice earthquake estimated with rapid finite-fault inversion
作者: Tinti E. ; Scognamiglio L. ; Michelini A. ; Cocco M.
刊名: Geophysical Research Letters
ISSN: 0094-8468
EISSN: 1944-8199
出版年: 2016
卷: 43, 期: 20 起始页码: 10745
结束页码: 10752
语种: 英语
英文关键词: finite fault
; kinematic inversion
; rupture directivity
Scopus关键词: Earthquakes
; Earthquakes
; Faulting
; Faulting
; Geophysics
; Geophysics
; Central Apennines
; Central Apennines
; Directivity effect
; Directivity effect
; Finite fault inversions
; Finite fault inversions
; Kinematic inversion
; Kinematic inversion
; Rupture directivity
; Rupture directivity
; Rupture velocities
; Rupture velocities
; Slip distribution
; Slip distribution
; Three component
; Three component
; Fault slips
; Fault slips
英文摘要: On 24 August 2016 a magnitude ML 6.0 occurred in the Central Apennines (Italy) between Amatrice and Norcia causing nearly 300 fatalities. The main shock ruptured a NNW-SSE striking, WSW dipping normal fault. We invert waveforms from 26 three-component strong motion accelerometers, filtered between 0.02 and 0.5 Hz, within 45 km from the fault. The inferred slip distribution is heterogeneous and characterized by two shallow slip patches updip and NW from the hypocenter, respectively. The rupture history shows bilateral propagation and a relatively high rupture velocity (3.1 km/s). The imaged rupture history produced evident directivity effects both N-NW and SE of the hypocenter, explaining near-source peak ground motions. Fault dimensions and peak slip values are large for a moderate-magnitude earthquake. The retrieved rupture model fits the recorded ground velocities up to 1 Hz, corroborating the effects of rupture directivity and slip heterogeneity on ground shaking and damage pattern. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84995474914&doi=10.1002%2f2016GL071263&partnerID=40&md5=8a834bec9448de153746273fc407e01b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9431
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy
Recommended Citation:
Tinti E.,Scognamiglio L.,Michelini A.,et al. Slip heterogeneity and directivity of the ML 6.0, 2016, Amatrice earthquake estimated with rapid finite-fault inversion[J]. Geophysical Research Letters,2016-01-01,43(20).