气候变化领域集成服务门户(CCPortal): Quantifying Eruptive and Background Seismicity, Deformation, Degassing, and Thermal Emissions at Volcanoes in the United States During 1978

CCPortal

DOI	10.1029/2021JB021684
	Quantifying Eruptive and Background Seismicity, Deformation, Degassing, and Thermal Emissions at Volcanoes in the United States During 1978–2020
	Reath K.; Pritchard M.E.; Roman D.C.; Lopez T.; Carn S.; Fischer T.P.; Lu Z.; Poland M.P.; Vaughan R.G.; Wessels R.; Wike L.L.; Tran H.K.
发表日期	2021
ISSN	21699313
卷号	126 期号:6
英文摘要	An important aspect of volcanic hazard assessment is determination of the level and character of background activity at a volcano so that deviations from background (called unrest) can be identified. Here, we compile the instrumentally recorded eruptive and noneruptive activity for 161 US volcanoes between 1978 and 2020. We combine monitoring data from four techniques: seismicity, ground deformation, degassing, and thermal emissions. To previous work, we add the first comprehensive survey of US volcanoes using medium-spatial resolution satellite thermal observations, newly available field surveys of degassing, and new compilations of seismic and deformation data. We report previously undocumented thermal activity at 30 volcanoes using data from the spaceborne ASTER sensor during 2000–2020. To facilitate comparison of activity levels for all US volcanoes, we assign a numerical classification of the Activity Intensity Level for each monitoring technique, with the highest ranking corresponding to an eruption. There are 96 US volcanoes (59%) with at least one type of detected activity, but this represents a lower bound: For example, there are 12 volcanoes where degassing has been observed but has not yet been quantified. We identify dozens of volcanoes where volcanic activity is only measured by satellite (45% of all thermal observations), and other volcanoes where only ground-based sensors have detected activity (e.g., all seismic and 62% of measured degassing observations). Our compilation provides a baseline against which future measurements can be compared, demonstrates the need for both ground-based and remote observations, and serves as a guide for prioritizing future monitoring efforts. © 2021. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187044
作者单位	Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, United States; Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC, United States; Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, United States; Geological and Mining Engineering and Sciences, Michigan Technological, Houghton, MI, United States; Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, United States; Department of Earth Sciences, Southern Methodist University, Dallas, TX, United States; U.S. Geological Survey—Cascades Volcano Observatory, Vancouver, WA, United States; U.S. Geological Survey—Astrogeology Science Center, Flagstaff, AZ, United States; U.S. Geological Survey Headquarters, Reston, VA, United States; Now at Department of Geology, University of Maryland, College Park, MD, United States
推荐引用方式 GB/T 7714	Reath K.,Pritchard M.E.,Roman D.C.,等. Quantifying Eruptive and Background Seismicity, Deformation, Degassing, and Thermal Emissions at Volcanoes in the United States During 1978–2020[J],2021,126(6).
APA	Reath K..,Pritchard M.E..,Roman D.C..,Lopez T..,Carn S..,...&Tran H.K..(2021).Quantifying Eruptive and Background Seismicity, Deformation, Degassing, and Thermal Emissions at Volcanoes in the United States During 1978–2020.Journal of Geophysical Research: Solid Earth,126(6).
MLA	Reath K.,et al."Quantifying Eruptive and Background Seismicity, Deformation, Degassing, and Thermal Emissions at Volcanoes in the United States During 1978–2020".Journal of Geophysical Research: Solid Earth 126.6(2021).