DOI: 10.1002/2013GL058082
论文题名: Moderate-magnitude earthquakes induced by magma reservoir inflation at Kilauea Volcano, Hawai'i
作者: Wauthier C. ; Roman D.C. ; Poland M.P.
刊名: Geophysical Research Letters
ISSN: 0094-8451
EISSN: 1944-8182
出版年: 2013
卷: 40, 期: 20 起始页码: 5366
结束页码: 5370
语种: 英语
英文关键词: Coulomb stress modeling
; inversion
; Kilauea
; modeling
; radar interferometry
; volcanotectonic earthquake
Scopus关键词: Coulomb stress
; inversion
; Kilauea
; Radar interferometry
; Volcano tectonic earthquakes
; Models
; Strike-slip faults
; Structural geology
; Volcanoes
; Earthquakes
; caldera
; Coulomb criterion
; earthquake magnitude
; earthquake trigger
; geodetic datum
; igneous intrusion
; inversion tectonics
; magma chamber
; radar interferometry
; rift zone
; seismic data
; strike-slip fault
; volcanic earthquake
; Hawaii [(ISL) Hawaiian Islands]
; Hawaii [United States]
; Hawaiian Islands
; Kilauea
; United States
英文摘要: Although volcano-tectonic (VT) earthquakes often occur in response to magma intrusion, it is rare for them to have magnitudes larger than ∼M4. On 24 May 2007, two shallow M4+ earthquakes occurred beneath the upper part of the east rift zone of Kilauea Volcano, Hawai'i. An integrated analysis of geodetic, seismic, and field data, together with Coulomb stress modeling, demonstrates that the earthquakes occurred due to strike-slip motion on pre-existing faults that bound Kilauea Caldera to the southeast and that the pressurization of Kilauea's summit magma system may have been sufficient to promote faulting. For the first time, we infer a plausible origin to generate rare moderate-magnitude VTs at Kilauea by reactivation of suitably oriented pre-existing caldera-bounding faults. Rare moderate- to large-magnitude VTs at Kilauea and other volcanoes can therefore result from reactivation of existing fault planes due to stresses induced by magmatic processes. Key Points Unusual M4+ earthquakes at Kilauea triggered by ongoing summit inflation Summit inflation and lateral faulting consistent with seismic and geodetic data Reactivation of faults by magmatic stresses explain large VTs at volcanoes ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84885513020&doi=10.1002%2f2013GL058082&partnerID=40&md5=ad4501718d139492d4b5e1268d48799c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5715
Appears in Collections: 气候减缓与适应
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作者单位: Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC 20015, United States
Recommended Citation:
Wauthier C.,Roman D.C.,Poland M.P.. Moderate-magnitude earthquakes induced by magma reservoir inflation at Kilauea Volcano, Hawai'i[J]. Geophysical Research Letters,2013-01-01,40(20).