DOI: 10.1002/2015GL063297
论文题名: Stressing of fault patch during seismic swarms in central Apennines, Italy
作者: De Gori P. ; Lucente F.P. ; Chiarabba C.
刊名: Geophysical Research Letters
ISSN: 0094-8815
EISSN: 1944-8546
出版年: 2015
卷: 42, 期: 7 起始页码: 2157
结束页码: 2163
语种: 英语
英文关键词: b-value
; fault attitude
; seismic swarms
Scopus关键词: Earthquakes
; Electric power distribution
; Seismology
; Active fault
; B value
; Central Apennines
; Earthquake occurrences
; Normal faulting
; Seismic risk
; Seismic swarm
; Seismic-moment release
; Faulting
; earthquake event
; earthquake magnitude
; fault zone
; seismic migration
; seismicity
; Apennines
; Italy
; Italy
英文摘要: Persistent seismic swarms originate along the normal faulting system of central Apennines (Italy). In this study, we analyze the space-time-energy distribution of one of the longer and more intense of these swarms, active since August 2013 in the high seismic risk area of the Gubbio basin. Our aim is to verify if information relevant to constraint short-term earthquake occurrence scenarios is hidden in seismic swarms. During the swarm, the seismic moment release first accelerated, with a rapid migration of seismicity along the fault system, and suddenly dropped. We observe a decrease of the b-value, along the portion of the fault system where large magnitude events concentrated, possibly indicating that a fault patch was dynamically stressed. This finding suggests that the onset of seismic swarms might help the formation of critically stressed patches. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928695383&doi=10.1002%2f2015GL063297&partnerID=40&md5=a3f38de2202d3d4a9a5be03613bc0347
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8431
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: Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italy
Recommended Citation:
De Gori P.,Lucente F.P.,Chiarabba C.. Stressing of fault patch during seismic swarms in central Apennines, Italy[J]. Geophysical Research Letters,2015-01-01,42(7).