DOI: 10.1002/2015GL067297
论文题名: Source model of the 16 September 2015 Illapel, Chile, Mw 8.4 earthquake based on teleseismic and tsunami data
作者: Heidarzadeh M. ; Murotani S. ; Satake K. ; Ishibe T. ; Gusman A.R.
刊名: Geophysical Research Letters
ISSN: 0094-9462
EISSN: 1944-9193
出版年: 2016
卷: 43, 期: 2 起始页码: 643
结束页码: 650
语种: 英语
英文关键词: Chilean subduction zone
; earthquake
; Illapel earthquake of 16 September 2015
; teleseismic body wave inversion
; tsunami
; tsunami modeling
Scopus关键词: Geophysics
; Tsunamis
; Illapel earthquake of 16 September 2015
; Root Mean Square
; Rupture velocities
; Source modeling
; Subduction zones
; Teleseismic body waves
; Tsunami models
; Tsunami simulation
; Earthquakes
; body wave
; Chile earthquake 2010
; earthquake epicenter
; numerical model
; seismic moment
; spatial data
; spatiotemporal analysis
; subduction zone
; teleseismic wave
; tsunami
; waveform analysis
; Chile
; Coquimbo
; Maule
英文摘要: We proposed a source model for the 16 September 2015 Illapel (Chile) tsunamigenic earthquake using teleseismic and tsunami data. The 2015 epicenter was at the northernmost of the aftershocks zone of the 2010 Mw 8.8 Maule earthquake. Teleseismic body wave inversions and tsunami simulations showed optimum rupture velocities of 1.5-2.0 km/s. The agreement between observed and synthetic waveforms was quantified using normalized root-mean-square (NRMS) misfit. The variations of NRMS misfits were larger for tsunami data compared to the teleseismic data, because tsunami waveforms are more sensitive to the spatial distribution of slip. The large-slip area was 80 km (along strike) × 100 km (along dip) with an average slip of 5.0 m and depth of 12-33 km, located ~70 km to the northwest of the epicenter. We obtained a seismic moment of 4.42 × 1021 Nm equivalent to Mw 8.4. Results may indicate a northward stress transfer from the 2010 Maule earthquake. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958037961&doi=10.1002%2f2015GL067297&partnerID=40&md5=8269d568f410f23ca5d98c8f109c69f8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10425
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: Earthquake Research Institute, University of Tokyo, Tokyo, Japan
Recommended Citation:
Heidarzadeh M.,Murotani S.,Satake K.,et al. Source model of the 16 September 2015 Illapel, Chile, Mw 8.4 earthquake based on teleseismic and tsunami data[J]. Geophysical Research Letters,2016-01-01,43(2).