{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/129954"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/129954","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Reevaluating the 2008-2009 Yellowstone Lake swarm with deep learning","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms","abstract_has_math":false,"creators":["Woodrich, Hayley G."],"institution":"University of Illinois Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Geology","degree_department":null,"school":null,"contributors":["Maguire, Ross","Gregg, Trish"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-07-23","date_published":"2025-07-23","updated_at":"2026-07-22T22:25:06Z","subjects":["Geophysics","Machine Learning","Geology","Volcanology","Yellowstone"],"languages":["en","eng"],"rights":["Copyright 2025 Hayley Woodrich"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/129954","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Maguire, Ross","Gregg, Trish"]},{"key":"dc:creator","label":"Author","values":["Woodrich, Hayley G."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2025-07-23","2025-08"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Geology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Geophysics","Machine Learning","Geology","Volcanology","Yellowstone"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2025 Hayley Woodrich"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/129954"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms","The student, Hayley Woodrich, accepted the attached license on 2025-07-21 at 19:51.","The student, Hayley Woodrich, submitted this Thesis for approval on 2025-07-21 at 19:54.","This Thesis was approved for publication on 2025-07-23 at 14:53.","DSpace SAF Submission Ingestion Package generated from Vireo submission #22618 on 2025-10-20 at 20:15:25","The 2008-09 Yellowstone Lake seismic swarm was one of the most energetic in the last several decades with >800 earthquakes recorded between December 26, 2008 and January 8, 2009 (ANSS Comprehensive Earthquake Catalog, ComCat). While the cause of the swarm is uncertain, its location and coinciding extensional surface deformation hints at magma migration. Recent tomographic imaging suggests that the hypocenters occurred within an area of shear wave speed anomalies of up to 25% slow, suggesting that the swarm was located within a warm magma mush zone. In this study, we investigate the spatial and temporal evolution of the 2008-09 Yellowstone Lake swarm, as well as the spatial relationship between swarm activity and magma storage. We produced an updated seismicity catalog for the Yellowstone region between December 1, 2008, and January 31, 2009, using a combination of deep learning-based phase pickers (PhaseNet and EQTransformer) and GaMMA for phase association. Compared to ComCat, our catalog increases the number of events during the swarm period from 811 to 2297 and the number of events during the full cataloged period from 1217 to 3316. Earthquake hypocenters were relocated using HypoDD, a double-difference algorithm that minimizes the difference observed and calculated travel times. Updated hypocenter locations confirm that the Yellowstone Lake swarm occurred within the seismic slow zone, primarily in a region where wave speeds are 15-20% slow, consistent with a magma mush or partial melt."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Reevaluating the 2008-2009 Yellowstone Lake swarm with deep learning"]}]}],"canonical_facts":{"dc:contributor":["Maguire, Ross","Gregg, Trish"],"dc:creator":["Woodrich, Hayley G."],"dc:date":["2025-07-23","2025-08"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms","The student, Hayley Woodrich, accepted the attached license on 2025-07-21 at 19:51.","The student, Hayley Woodrich, submitted this Thesis for approval on 2025-07-21 at 19:54.","This Thesis was approved for publication on 2025-07-23 at 14:53.","DSpace SAF Submission Ingestion Package generated from Vireo submission #22618 on 2025-10-20 at 20:15:25","The 2008-09 Yellowstone Lake seismic swarm was one of the most energetic in the last several decades with >800 earthquakes recorded between December 26, 2008 and January 8, 2009 (ANSS Comprehensive Earthquake Catalog, ComCat). While the cause of the swarm is uncertain, its location and coinciding extensional surface deformation hints at magma migration. Recent tomographic imaging suggests that the hypocenters occurred within an area of shear wave speed anomalies of up to 25% slow, suggesting that the swarm was located within a warm magma mush zone. In this study, we investigate the spatial and temporal evolution of the 2008-09 Yellowstone Lake swarm, as well as the spatial relationship between swarm activity and magma storage. We produced an updated seismicity catalog for the Yellowstone region between December 1, 2008, and January 31, 2009, using a combination of deep learning-based phase pickers (PhaseNet and EQTransformer) and GaMMA for phase association. Compared to ComCat, our catalog increases the number of events during the swarm period from 811 to 2297 and the number of events during the full cataloged period from 1217 to 3316. Earthquake hypocenters were relocated using HypoDD, a double-difference algorithm that minimizes the difference observed and calculated travel times. Updated hypocenter locations confirm that the Yellowstone Lake swarm occurred within the seismic slow zone, primarily in a region where wave speeds are 15-20% slow, consistent with a magma mush or partial melt."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/129954"],"dc:language":["en","eng"],"dc:rights":["Copyright 2025 Hayley Woodrich"],"dc:subject":["Geophysics","Machine Learning","Geology","Volcanology","Yellowstone"],"dc:title":["Reevaluating the 2008-2009 Yellowstone Lake swarm with deep learning"],"dc:type":["text"],"thesis:degree_discipline":["Geology"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:06Z"}