Using earthquakes, T waves, and infrasound to investigate the eruption of Bogoslof Volcano, Alaska
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Abstract
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 3199 events from 49 earthquake families, many of which occurred with hydroacousticT waves of varying strength. We then use a 2D 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.
Suggested Citation
Wech, A., Tepp, G., Lyons, J.J., Haney, M.M., 2018, Using earthquakes, T waves, and infrasound to investigate the eruption of Bogoslof Volcano, Alaska: Geophysical Research Letters, v. 45, no. 14, p. 6918-6925, https://doi.org/10.1029/2018GL078457.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Using earthquakes, T waves, and infrasound to investigate the eruption of Bogoslof Volcano, Alaska |
| Series title | Geophysical Research Letters |
| DOI | 10.1029/2018GL078457 |
| Volume | 45 |
| Issue | 14 |
| Publication Date | July 25, 2018 |
| Year Published | 2018 |
| Language | English |
| Publisher | American Geophysical Union |
| Contributing office(s) | Volcano Science Center |
| Description | 8 p. |
| First page | 6918 |
| Last page | 6925 |
| Country | United States |
| State | Alaska |
| Other Geospatial | Bogoslof Volcano |