globalchange  > 科学计划与规划
DOI: 10.1002/2015GL067423
论文题名:
Strike-slip faulting during the 2014 Bároarbunga-Holuhraun dike intrusion, central Iceland
作者: Ágústsdóttir T.; Woods J.; Greenfield T.; Green R.G.; White R.S.; Winder T.; Brandsdóttir B.; Steinthórsson S.; Soosalu H.
刊名: Geophysical Research Letters
ISSN: 0094-9347
EISSN: 1944-9078
出版年: 2016
卷: 43, 期:4
起始页码: 1495
结束页码: 1503
语种: 英语
英文关键词: Bároarbunga ; dike propagation ; dike tip fracture ; earthquake mechanisms ; Holuhraun ; rifting
Scopus关键词: Earthquakes ; Faulting ; Geophysics ; Hydraulic structures ; Levees ; Strike-slip faults ; Accumulated strain ; Brittle layers ; Dike propagation ; Holuhraun ; Moment tensor solutions ; Rifting ; Strike slip faulting ; Strike-slip earthquakes ; Fault slips ; dike ; earthquake mechanism ; fracture ; magma ; moment tensor ; rift zone ; rifting ; seismicity ; strike-slip fault ; volcano ; Iceland ; Northern Volcanic Zone
英文摘要: Over a 13 day period magma propagated laterally from the subglacial Bároarbunga volcano in the northern rift zone, Iceland. It created > 30,000 earthquakes at 5-7 km depth along a 48 km path before erupting on 29 August 2014. The seismicity, which tracked the dike propagation, advanced in short bursts at 0.3-4.7 km/h separated by pauses of up to 81 h. During each surge forward, seismicity behind the dike tip dropped. Moment tensor solutions from the leading edge show exclusively left-lateral strike-slip faulting subparallel to the advancing dike tip, releasing accumulated strain deficit in the brittle layer of the rift zone. Behind the leading edge, both left- and right-lateral strike-slip earthquakes are observed. The lack of non-double-couple earthquakes implies that the dike opening was aseismic. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84975763839&doi=10.1002%2f2015GL067423&partnerID=40&md5=8dab66397e2b6cdb5a5872a2a1a0c2c2
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10310
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: Bullard Laboratories, Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom

Recommended Citation:
à gústsdóttir T.,Woods J.,Greenfield T.,et al. Strike-slip faulting during the 2014 Bároarbunga-Holuhraun dike intrusion, central Iceland[J]. Geophysical Research Letters,2016-01-01,43(4).
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