DOI: 10.1002/2015GL065505
论文题名: Seismotectonics of southern Haiti: A new faulting model for the 12 January 2010 M7.0 earthquake
作者: Saint Fleur N. ; Feuillet N. ; Grandin R. ; Jacques E. ; Weil-Accardo J. ; Klinger Y.
刊名: Geophysical Research Letters
ISSN: 0094-8366
EISSN: 1944-8097
出版年: 2015
卷: 42, 期: 23 起始页码: 10273
结束页码: 10281
语种: 英语
英文关键词: 2010 M7 Haiti earthquake
; active faulting
; Enriquillo-Plantain Garden fault
; GPS and interferometry
; seismic hazard
; seismotectonics
Scopus关键词: Faulting
; Geophysics
; Hazards
; Seismic response
; Seismology
; Strike-slip faults
; Active faulting
; Aerial images
; Field data
; Haiti earthquakes
; High resolution
; Seismic hazards
; Seismotectonics
; Urban areas
; Earthquakes
; active fault
; earthquake rupture
; faulting
; GPS
; Haiti earthquake 2010
; interferometry
; seismic hazard
; seismotectonics
; strike-slip fault
; Haiti
英文摘要: The prevailing consensus is that the 2010 Mw7.0 Haiti earthquake left the Enriquillo-Plantain Garden strike-slip fault (EPGF) unruptured but broke unmapped blind north dipping thrusts. Using high-resolution topography, aerial images, bathymetry, and geology, we identified previously unrecognized south dipping NW-SE striking active thrusts in southern Haiti. One of them, Lamentin thrust, cuts across the crowded city of Carrefour, extends offshore into Port-au-Prince Bay, and connects at depth with the EPGF. We propose that both faults broke in 2010. The rupture likely initiated on the thrust and propagated further along the EPGF due to unclamping. This scenario is consistent with geodetic, seismological, and field data. The 2010 earthquake increased the stress toward failure on the unruptured segments of the EPGF and on neighboring thrusts, significantly increasing the seismic hazard in the Port-au-Prince urban area. The numerous active thrusts recognized in that area must be considered for future evaluation of the seismic hazard. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953637377&doi=10.1002%2f2015GL065505&partnerID=40&md5=f29292572eec932843c379552f56a09e
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7982
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, UMR 7154 CNRS, Paris, France
Recommended Citation:
Saint Fleur N.,Feuillet N.,Grandin R.,et al. Seismotectonics of southern Haiti: A new faulting model for the 12 January 2010 M7.0 earthquake[J]. Geophysical Research Letters,2015-01-01,42(23).