气候变化领域集成服务门户(CCPortal): Persistent Long-Period Signals Recorded by an OBS Array in the Western-Central Pacific: Activity of Ambrym Volcano in Vanuatu

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DOI	10.1029/2020GL089108
	Persistent Long-Period Signals Recorded by an OBS Array in the Western-Central Pacific: Activity of Ambrym Volcano in Vanuatu
	Kawano Y.; Isse T.; Takeo A.; Kawakatsu H.; Suetsugu D.; Shiobara H.; Sugioka H.; Ito A.; Ishihara Y.; Tanaka S.; Obayashi M.; Tonegawa T.; Yoshimitsu J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:19
英文摘要	Strong long-period seismic signals at periods around 25 and 18 s appear in the ambient noise cross-correlation functions recorded by an array of ocean bottom seismometers (OBSs) in the western-central Pacific. The signal amplitude varies from time to time, and the apparent travel times of the signals are typically smaller than those expected for the Rayleigh waves propagating along the great circle connecting the station pairs. From the cross-correlation functions, the signal sources are located in the Vanuatu Arc. Local data analysis suggests the signals originate from two different sources possibly located at depths of ~0–1 km below the sea level beneath the active cones of Ambrym volcano. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Sea level; Seismology; Ambient noise; Cross-correlation function; Great circle; Ocean bottom seismometer; Seismic signals; Signal amplitude; Signal source; Vanuatu; Volcanoes; ambient noise; array; ocean bottom seismometer; Rayleigh wave; sea level; sea level change; volcano; Ambrym; Pacific Ocean; Pacific Ocean (Central); Vanuatu; Vanuatu
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/169624
作者单位	Earthquake Research Institute, The University of Tokyo, Tokyo, Japan; Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan; Graduate School of Science, Kobe University, Hyogo, Japan
推荐引用方式 GB/T 7714	Kawano Y.,Isse T.,Takeo A.,et al. Persistent Long-Period Signals Recorded by an OBS Array in the Western-Central Pacific: Activity of Ambrym Volcano in Vanuatu[J],2020,47(19).
APA	Kawano Y..,Isse T..,Takeo A..,Kawakatsu H..,Suetsugu D..,...&Yoshimitsu J..(2020).Persistent Long-Period Signals Recorded by an OBS Array in the Western-Central Pacific: Activity of Ambrym Volcano in Vanuatu.Geophysical Research Letters,47(19).
MLA	Kawano Y.,et al."Persistent Long-Period Signals Recorded by an OBS Array in the Western-Central Pacific: Activity of Ambrym Volcano in Vanuatu".Geophysical Research Letters 47.19(2020).