A review framework of how earthquakes trigger volcanic eruptions

Gilles Seropian (), Ben M. Kennedy, Thomas R. Walter, Mie Ichihara and Arthur D. Jolly
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Gilles Seropian: University of Canterbury
Ben M. Kennedy: University of Canterbury
Thomas R. Walter: GFZ German Research Center for Geosciences
Mie Ichihara: University of Tokyo
Arthur D. Jolly: GNS Science

Nature Communications, 2021, vol. 12, issue 1, 1-13

Abstract: Abstract It is generally accepted that tectonic earthquakes may trigger volcanic activity, although the underlying mechanisms are poorly constrained. Here, we review current knowledge, and introduce a novel framework to help characterize earthquake-triggering processes. This framework outlines three parameters observable at volcanoes, namely magma viscosity, open- or closed-system degassing and the presence or absence of an active hydrothermal system. Our classification illustrates that most types of volcanoes may be seismically-triggered, though require different combinations of volcanic and seismic conditions, and triggering is unlikely unless the system is primed for eruption. Seismically-triggered unrest is more common, and particularly associated with hydrothermal systems.

Date: 2021
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DOI: 10.1038/s41467-021-21166-8

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