Reddin, E. orcid.org/0000-0002-0156-5877, Ebmeier, S. orcid.org/0000-0002-5454-2652, Bagnardi, M. orcid.org/0000-0002-4315-0944 et al. (2 more authors) (2024) Craters of habit: Patterns of deformation in the western Galápagos. Volcanica, 7 (1). pp. 181-227. ISSN 2610-3540
Abstract
The western Galápagos islands of Fernandina and Isabela comprise six active volcanoes that have deformed since first observed by satellite radar in the early 1990s. We analyse new (2015–2022) displacement time series at Alcedo, Cerro Azul, Darwin, Fernandina, Sierra Negra, and Wolf volcanoes in the context of deformation and unrest since 1992. Previous discussions of volcano deformation have focused on eruptions, major intrusive episodes, and the structure of sub-volcanic systems. We discuss the full geodetic record of deformation and show that the style of eruptions, characteristics of unrest and deformation are distinctive at each volcano. These characteristic differences in deformation and unrest styles between the volcanoes have persisted for at least three decades, since the first satellite radar measurements. These consistent differences in shallow magma storage and eruptive dynamics reflect the influence of “top-down” factors and evolutionary stage, providing a basis to understand volcanic unrest here, and to inform monitoring strategies.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © The Author(s) 2024. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
Keywords: | Galápagos; Fernandina; Wolf; InSAR; Ground Deformation; Sub-volcanic structure |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst of Geophysics and Tectonics (IGT) (Leeds) |
Funding Information: | Funder Grant number NERC (Natural Environment Research Council) NE/R015546/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 25 Apr 2024 13:37 |
Last Modified: | 25 Apr 2024 13:37 |
Status: | Published |
Publisher: | Volcanica |
Identification Number: | 10.30909/vol.07.01.181227 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:211825 |
Download
Filename: Reddin-et-al_2024_Volcanica.pdf
Licence: CC-BY 4.0