Full text

Turn on search term navigation

© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Volcanic processes related to episodes of inflation, dike propagation, effusive activity, etc., can be detected by continuous surface tilt measurements. The interpretation of these measurements helps comprehend medium-to-short-term precursors of volcanic eruptions or establishes early warning alerts. Additionally, studying the transport and evolution of magmas from the Moho to the crust is key to understanding the eruptive process, but to date, they have not been traced from surface tilts. In this work, we witnessed two relevant and unique dynamic eruptive processes, as revealed by tilt signals, both in the 2021 La Palma eruption and in the 2011–2012 El Hierro eruption (Canary Islands). On the one hand, magma injection from the reservoir at depth is controlled by a pressure gradient. On the other hand, changes in magma viscosity, resulting from pressure variations, have been revealed from cyclic tilt signals. In the case of these signals, matching with a physical model helped us decipher them and establish the duration of this magmatic process, which varied depending on the size and rheological properties of the respective magma plumbing systems.

Details

Title
Tiltmeter Data Revealing Transient Magma Viscosity Changes During Eruptions
Author
Gomez-Ortiz, David 1   VIAFID ORCID Logo  ; Arnoso, Jose 2   VIAFID ORCID Logo  ; Martín-Velázquez, Silvia 1   VIAFID ORCID Logo  ; Martín-Crespo, Tomás 1   VIAFID ORCID Logo  ; Fuensanta González Montesinos 3   VIAFID ORCID Logo  ; Vélez, Emilio 2   VIAFID ORCID Logo  ; Benavent, Maite 3   VIAFID ORCID Logo 

 Departamento de Biología y Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, C/Tulipán s/n, Móstoles, 28933 Madrid, Spain; [email protected] (S.M.-V.); [email protected] (T.M.-C.); Research Group ‘Geofísica y Geoquímica Ambiental’, Universidad Rey Juan Carlos, Móstoles, 28933 Madrid, Spain 
 Instituto de Geociencias (IGEO), Consejo Superior de Investigaciones Científicas-Universidad Complutense de Madrid, C/Doctor Severo Ochoa, 7, 28040 Madrid, Spain; [email protected] (J.A.); [email protected] (E.V.); Research Group ‘Geodesia’, Universidad Complutense de Madrid, 28040 Madrid, Spain 
 Facultad de Ciencias Matemáticas, Universidad Complutense de Madrid, Plaza de Ciencias 3, 28040 Madrid, Spain; [email protected] (F.G.M.); [email protected] (M.B.); Research Group ‘Geodesia’, Universidad Complutense de Madrid, 28040 Madrid, Spain 
First page
317
Publication year
2025
Publication date
2025
Publisher
MDPI AG
e-ISSN
20724292
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3159537724
Copyright
© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.