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Geodetic Study of the 2006–2010 Ground Deformation in La Palma (Canary Islands): Observational Results

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Escayo, Joaquin and Fernández, José and Prieto, Juan F. and Camacho, Antonio G. and Palano, Mimmo and Aparicio, Alfredo and Rodríguez Velasco, Gema and Ancochea Soto, Eumenio (2020) Geodetic Study of the 2006–2010 Ground Deformation in La Palma (Canary Islands): Observational Results. Remote Sensing, 12 (16). p. 2566. ISSN 2072-4292

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Official URL: https://doi.org/10.3390/rs12162566




Abstract

La Palma is one of the youngest of the Canary Islands, and historically the most active. The recent activity and unrest in the archipelago, the moderate seismicity observed in 2017 and 2018 and the possibility of catastrophic landslides related to the Cumbre Vieja volcano have made it strongly advisable to ensure a realistic knowledge of the background surface deformation on the island. This will then allow any anomalous deformation related to potential volcanic unrest on the island to be detected by monitoring the surface deformation. We describe here the observation results obtained during the 2006–2010 period using geodetic techniques such as Global Navigation Satellite System (GNSS), Advanced Differential Synthetic Aperture Radar Interferometry (A-DInSAR) and microgravimetry. These results show that, although there are no significant associated variations in gravity, there is a clear surface deformation that is spatially and temporally variable. Our results are discussed from the point of view of the unrest and its implications for the definition of an operational geodetic monitoring system for the island


Item Type:Article
Uncontrolled Keywords:A-DInSAR, GNSS, gravimetry, La Palma, Canary Islands, volcanic unrest, surface deformation, volcano geodetic monitoring
Subjects:Sciences > Geology > Geodynamics
Sciences > Geology > Petrology
ID Code:62413
Deposited On:27 Oct 2020 08:49
Last Modified:27 Oct 2020 10:39

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