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Magma recharge patterns control eruption styles and magnitudes at Popocatépetl volcano (Mexico)

Mangler, Martin F.; Petrone, Chiara Maria; Prytulak, Julie

Magma recharge patterns control eruption styles and magnitudes at Popocatépetl volcano (Mexico) Thumbnail


Authors

Chiara Maria Petrone



Abstract

Diffusion chronometry has produced petrological evidence that magma recharge in mafic to intermediate systems can trigger volcanic eruptions within weeks to months. However, less is known about longer-term recharge frequencies and durations priming magma reservoirs for eruptions. We use Fe-Mg diffusion modeling in orthopyroxene to show that the duration, frequency, and timing of pre-eruptive recharge at Popocatépetl volcano (Mexico) vary systematically with eruption style and magnitude. Effusive eruptions are preceded by 9–13 yr of increased recharge activity, compared to 15–100 yr for explosive eruptions. Explosive eruptions also record a higher number of individual recharge episodes priming the plumbing system. The largest explosive eruptions are further distinguished by an ~1 yr recharge hiatus directly prior to eruption. Our results offer valuable context for the interpretation of ongoing activity at Popocatépetl, and seeking similar correlations at other arc volcanoes may advance eruption forecasting by including constraints on potential eruption size and style.

Citation

Mangler, M. F., Petrone, C. M., & Prytulak, J. (2022). Magma recharge patterns control eruption styles and magnitudes at Popocatépetl volcano (Mexico). Geology, 50(3), 366-370. https://doi.org/10.1130/g49365.1

Journal Article Type Article
Acceptance Date Oct 4, 2021
Online Publication Date Jan 5, 2022
Publication Date 2022
Deposit Date Jan 10, 2022
Publicly Available Date Mar 29, 2024
Journal Geology
Print ISSN 0091-7613
Electronic ISSN 1943-2682
Publisher Geological Society of America
Peer Reviewed Peer Reviewed
Volume 50
Issue 3
Pages 366-370
DOI https://doi.org/10.1130/g49365.1

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