DOI: 10.1002/grl.50516
论文题名: The 2011-2012 unrest at Santorini rift: Stress interaction between active faulting and volcanism
作者: Feuillet N.
刊名: Geophysical Research Letters
ISSN: 0094-8773
EISSN: 1944-8504
出版年: 2013
卷: 40, 期: 14 起始页码: 3532
结束页码: 3537
语种: 英语
英文关键词: active normal faulting
; Aegean arc
; earthquakes
; Santorini 2011-2012 volcanic unrest
; static stress transfer
; volcano-tectonic interactions
Scopus关键词: Aegean arc
; Normal faulting
; North Anatolian Fault
; Regional stress field
; Static Coulomb stress changes
; Static stress
; Stress interaction
; Volcanic unrest
; Earthquakes
; Volcanoes
; Strike-slip faults
; caldera
; earthquake epicenter
; faulting
; magmatism
; rift zone
; strike-slip fault
; volcanism
; Aegean Islands
; Aegean Sea
; Cyclades
; Greece
; Mediterranean Sea
; Santorin
; Santorini [Southern Aegean]
; Southern Aegean
英文摘要: At Santorini, active normal faulting controls the emission of volcanic products. Such geometry has implication on seismic activity around the plumbing system during unrest. Static Coulomb stress changes induced by the 2011-2012 inflation within a preexisting NW-SE extensional regional stress field, compatible with fault geometry, increased by more than 0.5 MPa in an ellipsoid-shaped zone beneath the Minoan caldera where almost all earthquakes (96%) have occurred since beginning of unrest. Magmatic processes perturb the regional stress in the caldera where strike-slip rather than normal faulting along NE-SW striking planes are expected. The inflation may have also promoted more distant moderate earthquakes on neighboring faults as the M > 5 January 2012, south of Christiania. Santorini belongs to a set of en echelon NE-SW striking rifts (Milos, Nysiros) oblique to the Aegean arc that may have initiated in the Quaternary due to propagation of the North Anatolian fault into the Southern Aegean Sea. Key Points Active faulting at Santorini rift and link with volcanoes The 2011-2012 inflation has increased the stress on rift bounding faults The seismicity pattern in the Caldera is well explained by the stress increase © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880205484&doi=10.1002%2fgrl.50516&partnerID=40&md5=a19650305d896093782602c9f4f53fbf
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6037
Appears in Collections: 气候减缓与适应
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作者单位: Institut de Physique du Globe de Paris, Sorbonne Paris Cité, UMR 7154 CNRS, 1 rue Jussieu, F-75238 Paris Cedex 05, France
Recommended Citation:
Feuillet N.. The 2011-2012 unrest at Santorini rift: Stress interaction between active faulting and volcanism[J]. Geophysical Research Letters,2013-01-01,40(14).