Using earthquakes, T waves, and infrasound to investigate the eruption of Bogoslof Volcano, Alaska
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.
Citation Information
| Publication Year | 2018 |
|---|---|
| Title | Using earthquakes, T waves, and infrasound to investigate the eruption of Bogoslof Volcano, Alaska |
| DOI | 10.1029/2018GL078457 |
| Authors | Aaron Wech, Gabrielle Tepp, John J. Lyons, Matthew M. Haney |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Geophysical Research Letters |
| Index ID | 70198100 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Volcano Science Center |