@misc{10481/77578,
year = {2022},
month = {10},
url = {https://hdl.handle.net/10481/77578},
abstract = {For the first time, we obtained high-resolution images of Earth's interior of the La Palma volcanic eruption that occurred in 2021 derived during the eruptive process. We present evidence of a rapid magmatic rise from the base of the oceanic crust under the island to produce an eruption that was active for 85 days. This eruption is interpreted as a very accelerated and energetic process. We used data from 11,349 earthquakes to perform travel-time seismic tomography. We present high-precision earthquake relocations and 3D distributions of P and S-wave velocities highlighting the geometry of magma sources. We identified three distinct structures: (1) a shallow localised region (< 3 km) of hydrothermal alteration; (2) spatially extensive, consolidated, oceanic crust extending to 10 km depth and; (3) a large sub-crustal magma-filled rock volume intrusion extending from 7 to 25 km depth. Our results suggest that this large magma reservoir feeds the La Palma eruption continuously. Prior to eruption onset, magma ascended from 10 km depth to the surface in less than 7 days. In the upper 3 km, melt migration is along the western contact between consolidated oceanic crust and altered hydrothermal material.},
organization = {FEMALE project of the Spanish Government (Grant No.
PID2019-106260GB-I00)},
organization = {Russian Science Foundation (Grant No. 20-17-00075)},
organization = {INVOLCAN team was supported by the projects VOLRISKMAC II (MAC2/3.5b/328)},
organization = {EC
Cooperation Transnational Program MAC 2014-2020},
organization = {Spanish
Ministry of Science and Innovation},
publisher = {Springer Nature},
title = {Rapid magma ascent beneath La Palma revealed by seismic tomography},
doi = {10.1038/s41598-022-21818-9},
author = {D’Auria, Luca and Prudencio Soñora, Janire and Ibáñez Godoy, Jesús Miguel},
}