DOI: 10.1002/2014GL059819
论文题名: High-precision relocation of long-period events beneath the summit region of Kīlauea Volcano, Hawai'i, from 1986 to 2009
作者: Matoza R.S. ; Shearer P.M. ; Okubo P.G.
刊名: Geophysical Research Letters
ISSN: 0094-10058
EISSN: 1944-9789
出版年: 2014
卷: 41, 期: 10 起始页码: 3413
结束页码: 3421
语种: 英语
英文关键词: Hawaii
; Kilauea
; long-period event
; relocation
Scopus关键词: Cluster analysis
; Relocation
; Conduit structure
; Hawaii
; Hydrothermal system
; Kilauea
; Long-period events
; Source location
; Systematic analysis
; Waveform cross correlation
; Volcanoes
; magma
; precision
; seismic source
; seismicity
; spatiotemporal analysis
; volcanology
; wave spectrum
; Hawaii [(ISL) Hawaiian Islands]
; Hawaii [United States]
; Hawaiian Islands
; Kilauea
; United States
英文摘要: Long-period (0.5-5 Hz, LP) seismicity has been recorded for decades in the summit region of Kīlauea Volcano, Hawai'i, and is postulated as linked with the magma transport and shallow hydrothermal systems. To better characterize its spatiotemporal occurrence, we perform a systematic analysis of 49,030 seismic events occurring in the Kīlauea summit region from January 1986 to March 2009 recorded by the ∼50-station Hawaiian Volcano Observatory permanent network. We estimate 215,437 P wave spectra, considering all events on all stations, and use a station-averaged spectral metric to consistently classify LP and non-LP seismicity. We compute high-precision relative relocations for 5327 LP events (43% of all classified LP events) using waveform cross correlation and cluster analysis with 6.4million event pairs, combined with the source-specific station term method. The majority of intermediate-depth (5-15km) LPs collapse to a compact volume, with remarkable source location stability over 23 years indicating a source process controlled by geological or conduit structure. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902250086&doi=10.1002%2f2014GL059819&partnerID=40&md5=f49acc5ca0d842ffc6ff733a8c7fdfa2
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7322
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA, United States
Recommended Citation:
Matoza R.S.,Shearer P.M.,Okubo P.G.. High-precision relocation of long-period events beneath the summit region of Kīlauea Volcano, Hawai'i, from 1986 to 2009[J]. Geophysical Research Letters,2014-01-01,41(10).