The eruptive tempo and long-term behaviour of open vent volcanoes

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• Emma Liu, University College London
• Tuesday 07 March 2023, 12:00-13:00
• Department of Earth Sciences, Tilley Lecture Theatre.

If you have a question about this talk, please contact Oscar Branson.

Open vent volcanoes are persistently active and maintain an unbroken connection between the shallow magma reservoir and the atmosphere. These volcanoes are true natural laboratories, providing an unparalleled window into fundamental physical and chemical processes in the subsurface that modulate volcanic activity. Open vent volcanoes sustain high fluxes of gas emissions and are therefore the “chimney pipes” of our planet, responsible for shaping the Earth’s atmosphere over geological time and for modulating regional air and water quality on human timescales. Lava lakes are rare end-members in the expressions of open vent volcanism and can remain stable for years to decades. Yet, recent events at Kilauea (Hawaii), Ambrym (Vanuatu) and Nyiragongo (DRC) have emphasized how rapidly these lakes can drain to feed voluminous flank eruptions, posing substantial environmental and societal hazard. I will review some of the recent advances and outstanding questions in our understanding of the mechanisms and impacts of open vent activity. In particular, I will focus on how multi-parameter remote sensing observations—from the ground, air and space—are providing new perspectives on the eruptive tempo and long-term behaviour of open vent volcanoes.

This talk is part of the Department of Earth Sciences Seminars (downtown) series.

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• Department of Earth Sciences Seminars (downtown)
• Department of Earth Sciences seminars
• Department of Earth Sciences, Tilley Lecture Theatre
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