DOI: 10.1002/2016GL067780
论文题名: Total energy of deep low-frequency tremor in the Nankai subduction zone, southwest Japan
作者: Annoura S. ; Obara K. ; Maeda T.
刊名: Geophysical Research Letters
ISSN: 0094-9230
EISSN: 1944-8961
出版年: 2016
卷: 43, 期: 6 起始页码: 2562
结束页码: 2567
语种: 英语
英文关键词: Nankai
; seismic energy
; subduction
; tremor
Scopus关键词: Continuous time systems
; Accumulated strain
; Low frequency tremors
; Nankai
; Nankai subduction zone
; Plate convergence
; Seismic energy
; Subduction
; Tremor
; Seismology
; energy balance
; frequency analysis
; lowland environment
; plate convergence
; seismic source
; spatial distribution
; strain rate
; subduction zone
; China
; Japan
; Kii Channel
; Nankai
; Shikoku
; Tianjin
英文摘要: We estimated the total seismic energy of deep low-frequency tremor in the Nankai subduction zone, southwest Japan, over an 11 year period. For precise estimation, the continuous time sequence of tremor activity was carefully detected using a procedure designed to minimize false-negative detections. The estimated spatial distribution of accumulated total energy of tremor indicates high-energy area in the western Shikoku region. Tremor activity rate, defined as the yearly average of total tremor energy per unit area, was investigated in each area throughout the Nankai subduction zone. The tremor activity rate was spatially variable, being high in areas west of the Kii Channel (the channel is marked by a complex plate geometry) and low in areas east of the channel. The plate convergence rate shows the same spatial pattern as that for tremor activity. We infer that tremor activity is influenced by accumulated strain due to plate convergence. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978012537&doi=10.1002%2f2016GL067780&partnerID=40&md5=8809906d3a424d84165b03e3e60dfc82
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10193
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:
Annoura S.,Obara K.,Maeda T.. Total energy of deep low-frequency tremor in the Nankai subduction zone, southwest Japan[J]. Geophysical Research Letters,2016-01-01,43(6).