Co-eruptive tremor from Bogoslof volcano: seismic wavefield composition at regional distances

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dc.contributor.authorHaney, Matthew M.
dc.contributor.authorFee, David
dc.contributor.authorMcKee, Kathleen
dc.contributor.authorLyons, John J.
dc.contributor.authorMatoza, Robin S.
dc.contributor.authorWech, Aaron G.
dc.contributor.authorTepp, Gabrielle
dc.contributor.authorSearcy, Cheryl
dc.contributor.authorMikesell, T. Dylan
dc.date.accessioned2023-01-11T16:13:47Z
dc.date.available2023-01-11T16:13:47Z
dc.date.issued2020-01-25
dc.description.abstractWe analyze seismic tremor recorded during eruptive activity over the course of the 2016–2017 eruption of Bogoslof volcano, Alaska. Only regional recordings of the tremor wavefield exist for Bogoslof, making it a challenge to place the recordings in context with other eruptions that are normally captured by local seismic data. We apply a technique of time-frequency polarization analysis to three-component seismic data to reveal the wavefield composition of Bogoslof eruption tremor. We find that at regional distances, the tremor is dominated by P-waves in the band from 1.5 to 10 Hz. Using this information, along with an enriched Bogoslof earthquake catalog, we obtain estimates of average reduced displacement (DR) for eruption tremor during 25 of the 70 Bogoslof events. DR reaches as high as approximately 40 cm2 for two of the major events, similar to other VEI~3 eruptions in Alaska. Overall, average reduced displacement displays a weak correlation to plume height during the first half of the 9-month-long eruption sequence, with a few notable exceptions. The two events with the highest DR values also generated measurable eruption tremor at very-long-periods (VLP) between 0.05 and 0.15 Hz.en_US
dc.description.sponsorshipWe thank Jean Soubestre, Steve McNutt, Roger Denlinger, and an anonymous reviewer for their comments on this paper. Data used in this study are available at the IRIS-DMC. RSM was supported by NSF grants EAR–1614855 and EAR–1847736. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.en_US
dc.description.urihttps://link.springer.com/article/10.1007/s00445-019-1347-0en_US
dc.format.extent14 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2lyw4-nmgi
dc.identifier.citationHaney, M.M., Fee, D., McKee, K.F. et al. Co-eruptive tremor from Bogoslof volcano: seismic wavefield composition at regional distances. Bull Volcanol 82, 18 (2020). https://doi.org/10.1007/s00445-019-1347-0en_US
dc.identifier.urihttps://doi.org/10.1007/s00445-019-1347-0
dc.identifier.urihttp://hdl.handle.net/11603/26625
dc.language.isoen_USen_US
dc.publisherSpringer Natureen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC GESTAR II Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleCo-eruptive tremor from Bogoslof volcano: seismic wavefield composition at regional distancesen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0003-3189-9189en_US

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