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Temporal and spatial evolution of the 2021 eruption in the Tajogaite volcano (Cumbre Vieja rift zone, La Palma, Canary Islands) from geophysical and geodetic parameter analyses

Author

Listed:
  • M. B. Benito

    (Universidad Politécncia de Madrid)

  • G. E. Alvarado

    (Instituto Costarricense de Electricidad)

  • M. Marchamalo

    (Universidad Politécnica de Madrid)

  • J. G. Rejas

    (Universidad Politécnica de Madrid
    National Institute for Aerospace Technology)

  • P. Murphy

    (Broadway Malyand)

  • R. Franco

    (Universidad Politécncia de Madrid)

  • D. Castro

    (Universidad Politécncia de Madrid)

  • C. Garcia-Lanchares

    (Universidad Politécnica de Madrid
    Detektia Earth Surface Monitoring S.L.)

  • J. Sanchez

    (Universidad Politécnica de Madrid
    Detektia Earth Surface Monitoring S.L.)

Abstract

The eruption of the Tajogaite volcano in 2021, in the Cumbre Vieja rift zone (La Palma, Canary Islands), is the most recent but also the most damaging and longest-lasting eruption on the island since historical records began. We analyzed geophysical parameters (seismicity, surface deformation, thermal anomalies, and volcanic activity) with the aim of reconstructing the temporal development of the magma plumbing system. The seismic sequence (> 9000 events, mbLg ≤ 5.0) can be grouped into nine distinct phases, which correspond to well-separated spatial clusters and distinct earthquake regimes. A strong premonitory thermal anomaly was calculated on July 2021 in the South of La Palma. The source of the magma was within the upper mantle (40–20 km depth). A second magma budget (

Suggested Citation

  • M. B. Benito & G. E. Alvarado & M. Marchamalo & J. G. Rejas & P. Murphy & R. Franco & D. Castro & C. Garcia-Lanchares & J. Sanchez, 2023. "Temporal and spatial evolution of the 2021 eruption in the Tajogaite volcano (Cumbre Vieja rift zone, La Palma, Canary Islands) from geophysical and geodetic parameter analyses," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 118(3), pages 2245-2284, September.
    • Handle: RePEc:spr:nathaz:v:118:y:2023:i:3:d:10.1007_s11069-023-06090-y
    DOI: 10.1007/s11069-023-06090-y
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