DOI: 10.1002/2015GL064208
论文题名: Fault Zone Guided Wave generation on the locked, late interseismic Alpine Fault, New Zealand
作者: Eccles J.D. ; Gulley A.K. ; Malin P.E. ; Boese C.M. ; Townend J. ; Sutherland R.
刊名: Geophysical Research Letters
ISSN: 0094-9489
EISSN: 1944-9220
出版年: 2015
卷: 42, 期: 14 起始页码: 5736
结束页码: 5743
语种: 英语
英文关键词: Alpine Fault
; Deep Fault Drilling Project
; Fault Zone Guided Waves
; seismology
Scopus关键词: Catchments
; Guided electromagnetic wave propagation
; Seismology
; Shear waves
; Wave propagation
; Alpine Faults
; Drilling projects
; Fault zone
; Low velocity zones
; Microseismic events
; North Anatolian Fault
; Shallow boreholes
; Waveguide widths
; Faulting
; catchment
; fault zone
; plate boundary
; S-wave
; segmentation
; seismograph
; seismology
; slip
; slip rate
; Anatolia
; California
; New Zealand
; San Andreas
; Turkey
; United States
英文摘要: Fault Zone Guided Waves (FZGWs) have been observed for the first time within New Zealand's transpressional continental plate boundary, the Alpine Fault, which is late in its typical seismic cycle. Ongoing study of these phases provides the opportunity to monitor interseismic conditions in the fault zone. Distinctive dispersive seismic codas (~7-35Hz) have been recorded on shallow borehole seismometers installed within 20m of the principal slip zone. Near the central Alpine Fault, known for low background seismicity, FZGW-generating microseismic events are located beyond the catchment-scale partitioning of the fault indicating lateral connectivity of the low-velocity zone immediately below the near-surface segmentation. Initial modeling of the low-velocity zone indicates a waveguide width of 60-200m with a 10-40% reduction in S wave velocity, similar to that inferred for the fault core of other mature plate boundary faults such as the San Andreas and North Anatolian Faults. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938966297&doi=10.1002%2f2015GL064208&partnerID=40&md5=e786fa3cb8cc7d8fab428422d3d7cfcf
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9104
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: School of Environment, University of Auckland, Auckland, New Zealand
Recommended Citation:
Eccles J.D.,Gulley A.K.,Malin P.E.,et al. Fault Zone Guided Wave generation on the locked, late interseismic Alpine Fault, New Zealand[J]. Geophysical Research Letters,2015-01-01,42(14).