Joshua Crozier
Postdoctoral Scholar, Geophysics
Bio
My research focuses on understanding the processes controlling volcanoes, earthquakes, and glaciers. I combine a variety of types of geophysical and geologic data with methods from fields such as seismology, geodesy, and numerical modeling to understand these systems and the hazards they pose.
Professional Education
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PhD, University of Oregon, Geophysics (2021)
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BS, Rice University, Geophysics (2016)
All Publications
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Explosive 2018 eruptions at Kīlauea driven by a collapse-induced stomp-rocket mechanism
NATURE GEOSCIENCE
2024
View details for DOI 10.1038/s41561-024-01442-0
View details for Web of Science ID 001232306300001
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Earthquake Cycle Mechanics During Caldera Collapse: Simulating the 2018 Kilauea Eruption
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
2024; 129 (5)
View details for DOI 10.1029/2024JB028886
View details for Web of Science ID 001228598700001
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Understanding the drivers of volcano deformation through geodetic model verification and validation
BULLETIN OF VOLCANOLOGY
2023; 85 (12)
View details for DOI 10.1007/s00445-023-01687-4
View details for Web of Science ID 001114027000001
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Outgassing through magmatic fractures enables effusive eruption of silicic magma
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
2022; 430
View details for DOI 10.1016/j.jvolgeores.2022.107617
View details for Web of Science ID 000911779300004
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Evolving magma temperature and volatile contents over the 2008-2018 summit eruption of Kilauea Volcano
SCIENCE ADVANCES
2022; 8 (22): eabm4310
Abstract
Magma rheology and volatile contents exert primary and highly nonlinear controls on volcanic activity. Subtle changes in these magma properties can modulate eruption style and hazards, making in situ inference of their temporal evolution vital for volcano monitoring. Here, we study thousands of impulsive magma oscillations within the shallow conduit and lava lake of Kīlauea Volcano, Hawai'i, USA, over the 2008-2018 summit eruptive sequence, encoded by "very-long-period" seismic events and ground deformation. Inversion of these data with a petrologically informed model of magma dynamics reveals significant variation in temperature and highly disequilibrium volatile contents over days to years, within a transport network that evolved over the eruption. Our results suggest a framework for inferring subsurface magma dynamics associated with prolonged eruptions in near real time that synthesizes petrologic and geophysical volcano monitoring approaches.
View details for DOI 10.1126/sciadv.abm4310
View details for Web of Science ID 000808053900013
View details for PubMedID 35648849
View details for PubMedCentralID PMC9159575
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Wavelet-Based Characterization of Very-Long-Period Seismicity Reveals Temporal Evolution of Shallow Magma System Over the 2008-2018 Eruption of Kilauea Volcano
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
2021; 126 (6)
View details for DOI 10.1029/2020JB020837
View details for Web of Science ID 000665206200016
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Magma Oscillations in a Conduit-Reservoir System, Application to Very Long Period (VLP) Seismicity at Basaltic Volcanoes: 2. Data Inversion and Interpretation at Klauea Volcano
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
2020; 125 (1)
View details for DOI 10.1029/2019JB017456
View details for Web of Science ID 000530895100005
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Basal control of supraglacial meltwater catchments on the Greenland Ice Sheet
CRYOSPHERE
2018; 12 (10): 3383-3407
View details for DOI 10.5194/tc-12-3383-2018
View details for Web of Science ID 000448593300001
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Permeability During Magma Expansion and Compaction
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
2017; 122 (12): 9825-9848
View details for DOI 10.1002/2017JB014783
View details for Web of Science ID 000423129200052