DOI: 10.1002/2015GL063721
论文题名: Different phases of the earthquake cycle captured by seismicity along the North Anatolian Fault
作者: Bulut F.
刊名: Geophysical Research Letters
ISSN: 0094-8787
EISSN: 1944-8518
出版年: 2015
卷: 42, 期: 7 起始页码: 2219
结束页码: 2227
语种: 英语
英文关键词: earthquake cycle
; postseismic phase
; preseismic phase
; seismicity of the North Anatolian Fault
Scopus关键词: Faulting
; Earthquake cycles
; Large earthquakes
; Lateral migration
; Microearthquake activities
; North Anatolian Fault
; Postseismic phase
; Preseismic phase
; Strain accumulations
; Earthquakes
; aftershock
; earthquake event
; fault zone
; location-allocation model
; seismicity
; timescale
; Sea of Marmara
; Turkey
; Turkey
英文摘要: The North Anatolian Fault has accommodated three major earthquakes during the last 15 years. Although the fault zone has substantially failed during the last century, it did not completely fail in NW Turkey and therefore left several segments at different physical stages. In this study, the seismicity rate is used as a proxy to locate the brittle fault sections with high/low strain accumulation. The results show that the 1999 M7.4 ̄zmit and the 2014 M6.9 Aegean earthquakes were preceded by almost a decade-long period of enhanced microearthquake activity representing a brittle process preparing the failure. This interpretation is supported by observed lateral migration of microearthquakes toward the main shock hypocenter within a time scale of roughly a decade. The Sea of Marmara segments of the North Anatolian Fault show a rather temporally uniform seismicity trend leading to the hypothesis that those segments are still not in the preparation stage for a large earthquake. The results also show that the duration of aftershock activity is not controlled only by the size of main shocks. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928698927&doi=10.1002%2f2015GL063721&partnerID=40&md5=368d2002ee464de8c1f5cfddd62f9172
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8403
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: AFAM Disaster Research Center, Istanbul Aydbox Drawings Light Down and Leftn University, Istanbul, Turkey
Recommended Citation:
Bulut F.. Different phases of the earthquake cycle captured by seismicity along the North Anatolian Fault[J]. Geophysical Research Letters,2015-01-01,42(7).