Hydroacoustic sensing of seismic events during the Tajogaite volcanic eruption (La Palma, Spain)
Abstract Volcanic processes generate a variety of seismic events that can be detected by both on-land and underwater sensors. During the 2021 subaerial eruption of the Tajogaite volcano on La Palma Island (Canary Islands, NW Africa), an underwater acoustic sensor was strategically deployed to monito...
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| Format: | Article |
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Nature Portfolio
2025-02-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-88509-z |
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| author | Jesús Alcázar-Treviño Guillermo Lara Eduardo D. Suarez Manuel Bou Itahiza Domínguez Susannah Buchan Francisco Domínguez Eugenio Fraile-Nuez |
| author_facet | Jesús Alcázar-Treviño Guillermo Lara Eduardo D. Suarez Manuel Bou Itahiza Domínguez Susannah Buchan Francisco Domínguez Eugenio Fraile-Nuez |
| author_sort | Jesús Alcázar-Treviño |
| collection | DOAJ |
| description | Abstract Volcanic processes generate a variety of seismic events that can be detected by both on-land and underwater sensors. During the 2021 subaerial eruption of the Tajogaite volcano on La Palma Island (Canary Islands, NW Africa), an underwater acoustic sensor was strategically deployed to monitor seismic activity. This study presents marine passive acoustic monitoring data from a moored hydrophone deployed offshore at a depth of 77 m and 7 km from the volcanic vent, both during and after the eruption. We compare hydrophone recordings with island’s seismic network and earthquake database from the Instituto Geográfico Nacional (IGN). By calculating acoustic metrics and analyzing low-frequency bands (< 100 Hz), we identified 712 impulsive acoustic signals consistent with seismic events recorded in the seismic catalogue. These acoustic signals were double-pulsed, low-frequency (≤ 50 Hz with peak frequencies ≤ 15 Hz) and exhibited sound levels that well correlated with earthquake magnitudes. Our findings demonstrate that shallow-water hydro-acoustics can detect and estimate the magnitude of volcano-tectonic earthquakes in the studied scenario. These results encourage for the integration of hydro-acoustic monitoring in conjunction with on-land seismic stations to enhance the overall monitoring of the investigated volcanic area seismic activity. |
| format | Article |
| id | doaj-art-306349ae00444138b8b6377297b281c4 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-306349ae00444138b8b6377297b281c42025-02-09T12:30:18ZengNature PortfolioScientific Reports2045-23222025-02-0115111110.1038/s41598-025-88509-zHydroacoustic sensing of seismic events during the Tajogaite volcanic eruption (La Palma, Spain)Jesús Alcázar-Treviño0Guillermo Lara1Eduardo D. Suarez2Manuel Bou3Itahiza Domínguez4Susannah Buchan5Francisco Domínguez6Eugenio Fraile-Nuez7Centro Oceanográfico de Canarias, IEO-CSICCentro Oceanográfico de Murcia, IEO-CSICUniversidad de La Laguna (ULL)Centro Oceanográfico de Murcia, IEO-CSICInstituto Geográfico NacionalCenter for Oceanographic Research COPAS COASTAL, Universidad de ConcepciónDC Servicios AmbientalesCentro Oceanográfico de Canarias, IEO-CSICAbstract Volcanic processes generate a variety of seismic events that can be detected by both on-land and underwater sensors. During the 2021 subaerial eruption of the Tajogaite volcano on La Palma Island (Canary Islands, NW Africa), an underwater acoustic sensor was strategically deployed to monitor seismic activity. This study presents marine passive acoustic monitoring data from a moored hydrophone deployed offshore at a depth of 77 m and 7 km from the volcanic vent, both during and after the eruption. We compare hydrophone recordings with island’s seismic network and earthquake database from the Instituto Geográfico Nacional (IGN). By calculating acoustic metrics and analyzing low-frequency bands (< 100 Hz), we identified 712 impulsive acoustic signals consistent with seismic events recorded in the seismic catalogue. These acoustic signals were double-pulsed, low-frequency (≤ 50 Hz with peak frequencies ≤ 15 Hz) and exhibited sound levels that well correlated with earthquake magnitudes. Our findings demonstrate that shallow-water hydro-acoustics can detect and estimate the magnitude of volcano-tectonic earthquakes in the studied scenario. These results encourage for the integration of hydro-acoustic monitoring in conjunction with on-land seismic stations to enhance the overall monitoring of the investigated volcanic area seismic activity.https://doi.org/10.1038/s41598-025-88509-zSeismologyMarine acousticsHydroacousticsVolcanic eruption |
| spellingShingle | Jesús Alcázar-Treviño Guillermo Lara Eduardo D. Suarez Manuel Bou Itahiza Domínguez Susannah Buchan Francisco Domínguez Eugenio Fraile-Nuez Hydroacoustic sensing of seismic events during the Tajogaite volcanic eruption (La Palma, Spain) Scientific Reports Seismology Marine acoustics Hydroacoustics Volcanic eruption |
| title | Hydroacoustic sensing of seismic events during the Tajogaite volcanic eruption (La Palma, Spain) |
| title_full | Hydroacoustic sensing of seismic events during the Tajogaite volcanic eruption (La Palma, Spain) |
| title_fullStr | Hydroacoustic sensing of seismic events during the Tajogaite volcanic eruption (La Palma, Spain) |
| title_full_unstemmed | Hydroacoustic sensing of seismic events during the Tajogaite volcanic eruption (La Palma, Spain) |
| title_short | Hydroacoustic sensing of seismic events during the Tajogaite volcanic eruption (La Palma, Spain) |
| title_sort | hydroacoustic sensing of seismic events during the tajogaite volcanic eruption la palma spain |
| topic | Seismology Marine acoustics Hydroacoustics Volcanic eruption |
| url | https://doi.org/10.1038/s41598-025-88509-z |
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