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DOI | 10.1029/2018GL078457 |
Using Earthquakes, T Waves, and Infrasound to Investigate the Eruption of Bogoslof Volcano, Alaska | |
Wech, Aaron; Tepp, Gabrielle; Lyons, John; Haney, Matt | |
2018-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:14页码:6918-6925 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The 2016-2017 eruption of Bogoslof volcano, a submarine stratovolcano in the Bering Sea, produced 70 discrete explosive eruptions over 8 months. With no local monitoring data, activity was seismically recorded on nearby islands 50-100 km away, limiting the detection and resolution of seismic observations. We construct a matched filter catalog of 3,199 events from 49 earthquake families, many of which occurred with hydroacoustic T waves of varying strength. We then use a 2-D finite difference model to show that hydroacoustic amplitudes should decrease with increased source depth beneath the edifice and leverage each family's seismically recorded T wave amplitude as a proxy for source depth, which we compare to regional infrasound data. This unique combination of using P and S waves to detect events, T waves as a proxy for depth, and infrasound for precise timing of emissions allows us to interpret the dynamics and evolution of the Bogoslof eruption. Plain Language Summary The eruption of Bogoslof volcano, Alaska, primarily occurred underwater, making it difficult to track and interpret activity. We use instruments on neighboring islands to track eruption energy traveling through the Earth, ocean, and atmosphere. We use different techniques to investigate each signal, which results in a unique combination of data sets. This novel approach provides insights into the dynamics and evolution of the Bogoslof eruption, otherwise impossible with conventional means, and could be applied to other submarine eruptions. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442582100019 |
WOS关键词 | HARMONIC TREMOR ; REDOUBT VOLCANO ; MECHANISM ; EVENTS ; SWARMS ; TOOL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26959 |
专题 | 气候变化 |
作者单位 | US Geol Survey, Volcano Sci Ctr, Alaska Volcano Observ, Anchorage, AK 99508 USA |
推荐引用方式 GB/T 7714 | Wech, Aaron,Tepp, Gabrielle,Lyons, John,et al. Using Earthquakes, T Waves, and Infrasound to Investigate the Eruption of Bogoslof Volcano, Alaska[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(14):6918-6925. |
APA | Wech, Aaron,Tepp, Gabrielle,Lyons, John,&Haney, Matt.(2018).Using Earthquakes, T Waves, and Infrasound to Investigate the Eruption of Bogoslof Volcano, Alaska.GEOPHYSICAL RESEARCH LETTERS,45(14),6918-6925. |
MLA | Wech, Aaron,et al."Using Earthquakes, T Waves, and Infrasound to Investigate the Eruption of Bogoslof Volcano, Alaska".GEOPHYSICAL RESEARCH LETTERS 45.14(2018):6918-6925. |
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