DOI: 10.1002/2015GL064962
论文题名: Significance of the 1982-2014 Campi Flegrei seismicity: Preexisting structures, hydrothermal processes, and hazard assessment
作者: Di Luccio F. ; Pino N.A. ; Piscini A. ; Ventura G.
刊名: Geophysical Research Letters
ISSN: 0094-9250
EISSN: 1944-8981
出版年: 2015
卷: 42, 期: 18 起始页码: 7498
结束页码: 7506
语种: 英语
英文关键词: Campi Flegrei
; double-difference
; faults
; fluids
; hazard
; Seismicity
Scopus关键词: Earthquakes
; Fluids
; Geophysics
; Hazards
; Petroleum reservoir evaluation
; Campi Flegrei
; Double differences
; Fluid saturations
; Hazard Assessment
; Hydrothermal process
; Rheological change
; Seismicity
; Western boundary
; Faulting
; earthquake prediction
; hazard assessment
; hydrothermal system
; magma
; reservoir
; rheology
; saturation
; seismicity
; uplift
; volume change
; Campania [Italy]
; Campi Flegrei
; Italy
; Napoli [Campania]
英文摘要: We find that the double-difference relocated seismicity, which occurred over the last 30 years at Campi Flegrei, was triggered by the uprising of fluids preferentially concentrated along onshore and offshore NW striking preexisting caldera faults. Focal volumes of the 2005-2014 seismicity do not overlap that of the 1982-1984 period, when a major uplift of 1.8 m occurred in the central sector of the caldera. This indicates a transition from an elastic to a plastic behavior due to fluid saturation and heating of the rocks in the hydrothermal reservoir. The 2012-2014 deeper earthquakes are located in a low VP/VS zone at the western boundary of the hydrothermal reservoir, where a volume increase from a magmatic body at 3.5 km depth has been recognized. The progressive rheological change from elastic to plastic in the upper 4 km of the crust implies that a slow upward migration of magma may not necessarily be preceded by earthquakes or swarms. © 2015 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945231474&doi=10.1002%2f2015GL064962&partnerID=40&md5=bdf72553f6c755dc94f77540daea0b16
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8866
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, Rome, Italy
Recommended Citation:
Di Luccio F.,Pino N.A.,Piscini A.,et al. Significance of the 1982-2014 Campi Flegrei seismicity: Preexisting structures, hydrothermal processes, and hazard assessment[J]. Geophysical Research Letters,2015-01-01,42(18).