DOI: 10.1002/2013GL058678
论文题名: Reexamination of the A.D. 869 Jogan earthquake size from tsunami deposit distribution, simulated flow depth, and velocity
作者: Namegaya Y. ; Satake K.
刊名: Geophysical Research Letters
ISSN: 0094-10192
EISSN: 1944-9923
出版年: 2014
卷: 41, 期: 7 起始页码: 2297
结束页码: 2303
语种: 英语
英文关键词: 2011 Tohoku earthquake
; AD 869 Jogan earthquake
; fault model
; tsunami deposit
; tsunami flow depth
; tsunami flow velocity
Scopus关键词: Deposits
; Floods
; Random access storage
; Tsunamis
; 2011 tohoku earthquakes
; Earthquake magnitudes
; Fault model
; Inundation simulations
; Rupture parameters
; Tsunami deposits
; Tsunami flow
; Tsunami inundation
; Earthquakes
; earthquake magnitude
; fault displacement
; flow velocity
; moment tensor
; roughness
; rupture
; slip rate
; Tohoku earthquake 2011
; tsunami
; Honshu
; Ishinomaki Bay
; Japan
; Miyagi
; Sendai Bay
; Tohoku
英文摘要: The rupture parameters and magnitude of the A.D. 869 Jogan earthquake, a predecessor of the 2011 Tohoku earthquake, were previously estimated by matching tsunami deposit distributions with simulated inundation areas the tsunami inundation associated with the 2011 Tohoku earthquake, however, extended farther inland than the sandy tsunami deposits. Numerical simulation of the 2011 tsunami indicated that flow depths and velocities were approximately 1 m and 0.6 m/s, respectively, at the most inland sand deposit sites on the Ishinomaki and Sendai plains. While these values depend on the assumed bottom roughness, we used these values to compare tsunami deposits and inundation simulation of the 869 Jogan earthquake from both uniform-slip and 2011-type variable-slip fault models the results showed that the rupture length of the 869 Jogan earthquake was at least 200†‰km and its minimum moment magnitude was 8.6. Key Points The 2011 flow depth was at least 1 m at the most landward tsunami deposit The revised estimate of the AD 869 Jogan earthquake magnitude is at least Mw 8.6 Paleoearthquake size can be estimated from tsunami deposits and flow depth © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897315595&doi=10.1002%2f2013GL058678&partnerID=40&md5=9f2945c75691911d80d36fe6a9ba8a3c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7456
Appears in Collections: 气候减缓与适应
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作者单位: Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
Recommended Citation:
Namegaya Y.,Satake K.. Reexamination of the A.D. 869 Jogan earthquake size from tsunami deposit distribution, simulated flow depth, and velocity[J]. Geophysical Research Letters,2014-01-01,41(7).