气候变化领域集成服务门户(CCPortal): Spatiotemporal Seismic Structure Variations Associated With the 2018 Kīlauea Eruption Based on Temporary Dense Geophone Arrays

CCPortal

DOI	10.1029/2019GL086668
	Spatiotemporal Seismic Structure Variations Associated With the 2018 Kīlauea Eruption Based on Temporary Dense Geophone Arrays
	Wu S.-M.; Lin F.-C.; Farrell J.; Shiro B.; Karlstrom L.; Okubo P.; Koper K.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:9
英文摘要	During the 2018 Kīlauea volcanic eruption, lava erupted from a series of new fissures in the lower East Rift Zone more than 30 km away from the summit through a dike intrusion. Between late May and early August, variations in the effusion rate at the persistent eruptive vent (Fissure 8) were observed following near-daily summit caldera collapse events. Targeting the ongoing eruptive activity and the subsurface magma movement, we deployed a temporary dense seismic array. The observed time-lapse changes in seismic velocity associated with the response of the summit collapse in three areas are presented in this study. The results show (1) clear spatially dependent co-collapse velocity reductions across the newly-intruded dike structure, (2) a gradual post-collapse velocity increase near Fissure 8 correlated with the surge of magma supply, and (3) a gradual post-collapse velocity increase on the summit likely associated with reservoir pressurization and crustal welding. ©2020. American Geophysical Union. All Rights Reserved. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
英文关键词	Hydraulic structures; Levees; Seismology; Volcanoes; Collapse velocity; Eruptive activity; Eruptive vents; Geophone array; Seismic arrays; Seismic structure; Seismic velocities; Volcanic eruptions; Velocity; array; caldera; collapse structure; dike; geophone; igneous intrusion; lava; rift zone; seismic survey; seismic velocity; spatiotemporal analysis; volcanic eruption; Hawaii [(ISL) Hawaiian Islands]; Hawaii [United States]; Hawaiian Islands; Kilauea
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170416
作者单位	Department of Geology and Geophysics, University of Utah, Salt Lake City, UT, United States; Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan; Hawaiian Volcano Observatory, U.S. Geological Survey, Hilo, HI, United States; Department of Earth Sciences, University of Oregon, Eugene, OR, United States
推荐引用方式 GB/T 7714	Wu S.-M.,Lin F.-C.,Farrell J.,et al. Spatiotemporal Seismic Structure Variations Associated With the 2018 Kīlauea Eruption Based on Temporary Dense Geophone Arrays[J],2020,47(9).
APA	Wu S.-M..,Lin F.-C..,Farrell J..,Shiro B..,Karlstrom L..,...&Koper K..(2020).Spatiotemporal Seismic Structure Variations Associated With the 2018 Kīlauea Eruption Based on Temporary Dense Geophone Arrays.Geophysical Research Letters,47(9).
MLA	Wu S.-M.,et al."Spatiotemporal Seismic Structure Variations Associated With the 2018 Kīlauea Eruption Based on Temporary Dense Geophone Arrays".Geophysical Research Letters 47.9(2020).