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Observations of Volcanism in the Three Spheres: Land, Air and Sea

Date: 4/26/2019

Time: 1:30 PM to 2:45 PM

Room: Puget Sound

Volcanoes are naturally situated at the intersection of the solid Earth with the air and/or sea. As a result, we can probe the volcanic system using a diverse range of observable waves: seismic, infrasonic and hydroacoustic. While these waves can undergo conversions and move between spheres, information is typically lost in the conversion process and is best analyzed in the sphere where the source originates. Thus, observations in the different spheres may be necessary to fully characterize and understand volcanic activity.
Recent advances have been made using combinations of these observables in complementary ways to improve our understanding of volcanoes in eruption and repose. Monitoring networks are increasingly using infrasound to detect explosions, lahars and other subaerial activity. Underwater cabled networks, such as that at Axial Seamount and other instrumentation are opening new possibilities for monitoring and studying submarine volcanism. Additionally, new seismic technologies, such as large-N arrays, are allowing for more thorough seismic studies. New or improved methods—such as machine learning techniques—for processing, analyzing and combining the variety of data collected from volcanoes are also needed to improve our understanding of volcanism. In this session, we encourage interdisciplinary studies but also welcome new studies that showcase the diversity of advances in volcano seismology within a single sphere. Topics may include scientific studies as well as work focusing on techniques and instrumentation.

Conveners

Alicia J. Hotovec-Ellis, U.S. Geological Survey (ahotovec@gmail.com)
Gabrielle Tepp, U.S. Geological Survey (gtepp@usgs.gov)
Jackie Caplan-Auerbach, Western Washington University (jackie.caplan-auerbach@wwu.edu)
Mel Rodgers, University of South Florida (melrodgers@usf.edu)

Oral Presentations