DOI: 10.1002/2014GL061898
论文题名: Triggering of tremor and inferred slow slip by small earthquakes at the Nankai subduction zone in southwest Japan
作者: Han J. ; Vidale J.E. ; Houston H. ; Chao K. ; Obara K.
刊名: Geophysical Research Letters
ISSN: 0094-9571
EISSN: 1944-9302
出版年: 2014
卷: 41, 期: 22 起始页码: 8053
结束页码: 8060
语种: 英语
英文关键词: dynamic triggering
; earthquake
; slow slip
; subduction zone
; tremor
Scopus关键词: Dynamics
; Surface waves
; Dynamic triggering
; Lower frequencies
; Nankai subduction zone
; Physical mechanism
; slow slip
; Small earthquakes
; Subduction zones
; tremor
; Earthquakes
; amplitude
; earthquake epicenter
; earthquake trigger
; seismic attenuation
; slab
; slip
; subduction zone
; China
; Nankai
; Tianjin
英文摘要: The correlation of earthquakes with tremor and slow slip has not been clearly quantified. We investigate 12 year earthquake and tremor catalogs for southwest Japan and find that nearby small intraslab earthquakes are weakly correlated with tremor. In particular, the intraslab earthquakes with magnitudes ≥2.7 tend to be followed by tremor more often than expected at random by a factor of 2 to 6. The excess number of tremor before earthquakes is not as significant, although marginally more than expected. The underlying physical mechanism of the observed triggering of tremor and inferred slow slip by earthquakes is most likely to be the dynamic stress changes (several to several tens of kilopascals) rather than the much smaller static stress changes. The rate of triggering of tremor by earthquakes is similar to, although somewhat lower than, rates observed for similar amplitude stress changes due to the lower-frequency teleseismic surface waves and tidal stressing. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923331111&doi=10.1002%2f2014GL061898&partnerID=40&md5=ad6ea9d70d2b665132f2ca2116f72b4e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6835
Appears in Collections: 气候减缓与适应
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作者单位: Department of Earth and Space Sciences, University of Washington, Seattle, WA, United States
Recommended Citation:
Han J.,Vidale J.E.,Houston H.,et al. Triggering of tremor and inferred slow slip by small earthquakes at the Nankai subduction zone in southwest Japan[J]. Geophysical Research Letters,2014-01-01,41(22).