DOI: 10.1002/2016GL070002
论文题名: Modeling tsunami observations to evaluate a proposed late tsunami earthquake stage for the 16 September 2015 Illapel, Chile, Mw 8.3 earthquake
作者: Lay T. ; Li L. ; Cheung K.F.
刊名: Geophysical Research Letters
ISSN: 0094-8789
EISSN: 1944-8520
出版年: 2016
卷: 43, 期: 15 起始页码: 7902
结束页码: 7912
语种: 英语
英文关键词: 2015 Chile earthquake
; Illapel
; rupture duration
; tsunami earthquake
; tsunami modeling
Scopus关键词: Earthquakes
; Gages
; Geophysics
; Seismology
; Tide gages
; Chile earthquakes
; Deep ocean assessment and reporting of tsunamis
; Geodetic observation
; Illapel
; Rupture duration
; Shorter wavelength
; Subduction zones
; Tsunami models
; Tsunamis
; deep sea
; earthquake
; earthquake hypocenter
; earthquake magnitude
; earthquake rupture
; Illapel earthquake 2015
; observational method
; seismology
; subduction zone
; tide gauge
; tsunami
; wavelength
; Chile
英文摘要: Resolving seaward extent of slip during great subduction zone interplate ruptures using land-based seismological and geodetic observations is challenging. Modeling of tsunami recordings from ocean-bottom pressure sensors of the Deep-ocean Assessment and Reporting of Tsunami (DART) network has added valuable constraints on near-trench slip for recent events. We use DART and tide gauge recordings to evaluate a proposed seismological scenario involving a late Mw 8.08 tsunami earthquake following the ~95 s long main rupture stage of the 16 September 2015 Illapel, Chile, Mw 8.3 earthquake. Tsunami observations constrain the spatial extent of any late tsunami earthquake slip to locate north of the main shock hypocenter. The proposed late shallow slip predicts tsunami signals with considerable amplitudes but shorter wavelengths compared to those of the main stage slip constrained by joint seismic and tsunami modeling, yielding overprediction of first-arrival amplitudes at DART and tide gauge stations when the two stages are combined. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84980329400&doi=10.1002%2f2016GL070002&partnerID=40&md5=1106150aeccb13ef63b89e1afc471c6b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9752
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: Department of Earth and Planetary Sciences, University of California, Santa Cruz, CA, United States
Recommended Citation:
Lay T.,Li L.,Cheung K.F.. Modeling tsunami observations to evaluate a proposed late tsunami earthquake stage for the 16 September 2015 Illapel, Chile, Mw 8.3 earthquake[J]. Geophysical Research Letters,2016-01-01,43(15).