DOI: 10.1002/2015GL064062
论文题名: Low slip rates and multimillennial return times for M<inf>w</inf> 7 earthquake faults in southern Calabria (Italy)
作者: Galli P.A.C. ; Peronace E.
刊名: Geophysical Research Letters
ISSN: 0094-9537
EISSN: 1944-9268
出版年: 2015
卷: 42, 期: 13 起始页码: 5258
结束页码: 5265
语种: 英语
英文关键词: active tectonics
; Calabrian Arc
; earthquake recurrence
; normal faults
; paleoseismology
; Quaternary geochronology
Scopus关键词: Earthquakes
; Faulting
; Geochronology
; Seismology
; Tectonics
; Active tectonics
; Calabrian Arc
; Earthquake recurrence
; Normal faults
; Paleoseismology
; Quaternary geochronologies
; Fault slips
; accretionary prism
; backarc basin
; earthquake epicenter
; earthquake magnitude
; earthquake recurrence
; fault
; hazard assessment
; historical record
; Holocene
; normal fault
; paleoseismicity
; Pleistocene
; seismic hazard
; slab
; slip rate
; Calabria
; Calabrian Arc
; Italy
; Mediterranean Sea
; Tyrrhenian Sea
英文摘要: The Calabrian Arc is the epicentral region of one third of the strongest earthquakes of Italy (Mw ≥7.0). These are confined within a narrow peninsula which is the emerging portion of a slab-related accretionary wedge, and all occurred in the past four centuries. Therefore, here more than anywhere in Italy, historical seismicity alone is not sufficient for seismic hazard assessment. We carried out geological and paleoseismological studies in southern Calabria that allowed characterizing the seismogenic behavior of the Cittanova fault which was responsible for one of the most catastrophic earthquakes to ever occur in Europe, the Mw 7.0 5 February 1783 event. We have found out conclusive evidence for four Holocene earthquakes prior to 1783, with a recurrence time longer (∼3.2kyr) than the other Apennine faults (0.3-2.4kyr). We have also estimated a robust slip rate for the late Upper Pleistocene (0.6mm/yr) and an extension rate (0.4mm/yr) that could reflect the residual back-arc opening of the Tyrrhenian Basin. Key Points Cittanova fault caused five Mw 7.0 earthquakes in the past 13 kyr Return times (∼3.2 kyr) match low slip rate of the fault (0.6 mm/yr) Fault extension reflects residual Tyrrhenian back-arc opening. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938199085&doi=10.1002%2f2015GL064062&partnerID=40&md5=3948873553bb7faf4e76762dbdd7f665
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9152
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: Dipartimento della Protezione Civile Nazionale, Rome, Italy
Recommended Citation:
Galli P.A.C.,Peronace E.. Low slip rates and multimillennial return times for M<inf>w</inf> 7 earthquake faults in southern Calabria (Italy)[J]. Geophysical Research Letters,2015-01-01,42(13).