Infrasound from Giant Bubbles During Shallow, Explosive Submarine Eruptions
Abstract
Shallow submarine volcanoes pose unique scientific and monitoring challenges. Magma-water interactions can create violent explosions just below the surface, but the inaccessibility of submerged volcanoes means they are typically not instrumented. This both increases the risk to marine and aviation traffic and leaves the underlying eruption physics poorly understood. The 2016-2017 shallow submarine eruption of Bogoslof volcano, Alaska produced 70 explosive events over nine months that were well-recorded by regional infrasound stations operated by the Alaska Volcano Observatory. These data provide new insights into how submarine eruptions produce infrasound, thus aiding future monitoring efforts.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2020
- Bibcode:
- 2020AGUFMV044...09L
- Keywords:
-
- 8414 Eruption mechanisms and flow emplacement;
- VOLCANOLOGY;
- 8416 Mid-oceanic ridge processes;
- VOLCANOLOGY;
- 8427 Subaqueous volcanism;
- VOLCANOLOGY;
- 8439 Physics and chemistry of magma bodies;
- VOLCANOLOGY