RT Journal Article
T1 Detection of volcanic unrest onset in La Palma, Canary Islands, evolution and implications
A1 Fernández, José
A1 Escayo, Joaquin
A1 Hu, Zhongbo
A1 Camacho, A.G.
A1 Samsonov, Sergey V.
A1 Prieto, Juan F.
A1 Tiampo, Kristy F.
A1 Palano, Mimmo
A1 Mallorquí, Jordi J.
A1 Ancochea Soto, Eumenio
AB La Palma island is one of the highest potential risks in the volcanic archipelago of the Canaries and therefore it is important to carry out an in-depth study to define its state of unrest. This has been accomplished through the use of satellite radar observations and an original state-of-the-art interpretation technique. Here we show the detection of the onset of volcanic unrest on La Palma island, most likely decades before a potential eruption. We study its current evolution seeing the spatial and temporal changing nature of activity at this potentially dangerous volcano at unprecedented spatial resolutions and long time scales, providing insights into the dynamic nature of the associated volcanic hazard. The geodetic techniques employed here allow tracking of the fluid migration induced by magma injection at depth and identifying the existence of dislocation sources below Cumbre Vieja volcano which could be associated with a future flank failure. Therefore they should continue being monitored using these and other techniques. The results have implications for the monitoring of steep-sided volcanoes at oceanic islands.
PB Nature Research
SN 2045-2322
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/7774
UL https://hdl.handle.net/20.500.14352/7774
LA eng
NO Ministerio de Ciencia e Innovación (MICINN)
NO Ministerio de Economía y Competitividad (MINECO)
NO Consejo Superior de Investigaciones Científicas (CSIC)
DS Docta Complutense
RD 5 abr 2025