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Caldera collapse earthquake cycles at Kīlauea inform fault mechanics
UNDERSTANDING VOLCANIC AND VOLCANOTECTONIC PROCESSES VI ORAL
volcanology, geochemistry and petrology | 13 december 2024
Josh A. Crozier, Paul Segall, Kyle R. Anderson, An...
A growing number of observations of caldera-forming eruptions have demonstrated that collapse plays an integral role in driving eruptions. In all case...
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Estimating the Pressure History in Kı̄lauea’s Summit Magma Reservoirs During the 2018 Eruption
GLOBAL APPLICATIONS OF VOLCANO GEODESY II POSTER
geodesy | 12 december 2024
Eric Berg, Taiyi Wang, Paul Segall
Kılauea volcanos summit magma system includes two magma chambers: the shallow Halema'uma'u (HMM) and the deeper South Caldera (SC) reservoirs. However...
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Computer Vision Geodesy of the 2018 Kīlauea Caldera Collapse
UNDERSTANDING VOLCANIC AND VOLCANOTECTONIC PROCESSES II POSTER
volcanology, geochemistry and petrology | 12 december 2024
Anna Melega, Josh A. Crozier, Paul Segall
The 2018 eruption of Kīlauea Volcano in Hawaii triggered a significant caldera collapse, resulting in the eruption of over one cubic kilometer of lava...
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Pore Pressure Perturbations on Fractally Rough Faults Simulate Induced Seismicity
ADVANCES IN UNDERSTANDING TRIGGERING MECHANISMS OF INDUCED SEISMICITY I ORAL
seismology | 12 december 2024
Albert Aguilar, Paul Segall, Camilla Cattania
Many observed features of induced seismicity require heterogeneity on activated faults, such as earthquakes partially breaking fault planes and the ac...
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Simulating Induced Seismicity From a Single Injector on Rough Faults
ADVANCES IN UNDERSTANDING TRIGGERING MECHANISMS OF INDUCED SEISMICITY I ORAL
seismology | 12 december 2024
Cheng Mei, Albert Aguilar, Camilla Cattania, Paul ...
Injection-induced seismicity is caused primarily by reduction in the effective normal stress, which diminishes frictional resistance to slip along fau...
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Seismic and Aseismic Slip Induced by Fluid Injection on a Rough Fault
ADVANCES IN UNDERSTANDING TRIGGERING MECHANISMS OF INDUCED SEISMICITY I ORAL
seismology | 12 december 2024
Xin Cui, Camilla Cattania, Paul Segall
The mechanism by which fluid injection triggers seismicity is debated: while induced earthquakes are conventionally attributed to the reduced effectiv...
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Magma Transport through a Transcrustal Visco-poro-elastic Mush
TIMING AND DURATION OF MAGMATIC PROCESSES FROM MELT GENERATION TO ERUPTION I POSTER
volcanology, geochemistry and petrology | 11 december 2024
Laura Blackstone, Paul Segall, yang liao, Benjami...
Pulses of magma into shallow reservoirs are widely supported by geochemical and surface deformation data. Geodetic observations are interpreted by fir...
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Deep Learning Forecasts Caldera Collapse Events at Kı̄lauea Volcano
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
24 august 2024
Ian W. McBrearty, Paul Segall
During the 3 month long eruption of Kı̄lauea volcano, Hawaii in 2018, the pre‐existing summit caldera collapsed in over 60 qua...