DOI: 10.1002/2013GL058234
论文题名: Fault frictional parameters and material properties revealed by slow slip events at Kilauea volcano, Hawai'i
作者: Foster J.H. ; Lowry A.R. ; Brooks B.A.
刊名: Geophysical Research Letters
ISSN: 0094-8299
EISSN: 1944-8030
出版年: 2013
卷: 40, 期: 23 起始页码: 6059
结束页码: 6063
语种: 英语
英文关键词: GPS
; rate- and state-dependent friction
; slow slip events
Scopus关键词: Characteristic slip
; Event correlation
; Frictional properties
; Quasi-periodicities
; Slow slip events
; State evolutions
; State-dependent
; Surface displacement
; Friction
; Global positioning system
; Source separation
; Volcanoes
; Fault slips
; displacement
; fault
; friction
; GPS
; parameterization
; periodicity
; volcanology
; Hawaii [(ISL) Hawaiian Islands]
; Hawaii [United States]
; Hawaiian Islands
; Kilauea
; United States
英文摘要: We categorize slow slip events at Kilauea Volcano into two distinct families based on GPS measurements of the surface displacement patterns. An event correlation filter confirms that "eastern" and "western" families are statistically distinguishable, with the western family notably self-similar. The western family exhibits quasi-periodicity with regular repeat times, while eastern family events are aperiodic or have complicated periodicity. If the decollement is the source fault for both families of events, it must have varying frictional properties at the ~10 km scale of separation. The temporal slip and spatial scaling behavior are consistent with a simplistic rate- and state-dependent frictional formalism provided that the characteristic slip distance for state evolution, D c, is of the order of millimeters rather than the 10-100 μm typically found in lab studies, and the shear rigidity is around 2 GPa, consistent with fault gouge material. Key Points Slow slip events at Kilauea can be categorized into two distinct families One family exhibits quasi-periodicity The periodicity constrains fault frictional parameters and material properties ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84889057677&doi=10.1002%2f2013GL058234&partnerID=40&md5=eaca55c382a2886007cd10f247b05217
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5563
Appears in Collections: 气候减缓与适应
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作者单位: SOEST, University of Hawai'i, 1680 East-West Road, Honolulu, HI 96822, United States
Recommended Citation:
Foster J.H.,Lowry A.R.,Brooks B.A.. Fault frictional parameters and material properties revealed by slow slip events at Kilauea volcano, Hawai'i[J]. Geophysical Research Letters,2013-01-01,40(23).