A 34-Year Record of Seismic Activity on Vulcano Island, Italy
Following the abrupt geochemical and geophysical variations that occurred on the island of Vulcano in September 2021, the search for previous multidisciplinary data on decades-long time spans became necessary to contextualize the newly recorded anomalous variations, which represented a serious threa...
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MDPI AG
2025-03-01
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| Series: | Geosciences |
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| Online Access: | https://www.mdpi.com/2076-3263/15/3/96 |
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| author | Susanna Falsaperla Salvatore Spampinato Ornella Cocina Giovanni Barreca |
| author_facet | Susanna Falsaperla Salvatore Spampinato Ornella Cocina Giovanni Barreca |
| author_sort | Susanna Falsaperla |
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| description | Following the abrupt geochemical and geophysical variations that occurred on the island of Vulcano in September 2021, the search for previous multidisciplinary data on decades-long time spans became necessary to contextualize the newly recorded anomalous variations, which represented a serious threat for the local population. Our analyses of ‘vintage’ reports, old documents and analogue seismograms, broaden our understanding of crustal seismic activity. The results unravel the predominant role of Vulcano’s hydrothermal system with respect to tectonic processes in the generation of seismicity in the analyzed sector. Earthquakes were generally located offshore and achieved a maximum M4.6. A 2D strain release map and DBSCAN application highlight seismogenic volumes to the NW, SW and E offshore of the island and trending NNW-SSE inshore, in agreement with structural patterns. Two major volcano unrests in 1985 and 1988 had seismicity mostly confined to the island. In comparison, the longer duration and typology of seismic signals recorded between 2021 and 2022 make this latest episode peculiar in the context of Vulcano’s past seismic activity. |
| format | Article |
| id | doaj-art-888a67dbc6d742809caacad1d4c2873c |
| institution | Kabale University |
| issn | 2076-3263 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj-art-888a67dbc6d742809caacad1d4c2873c2025-08-20T03:43:36ZengMDPI AGGeosciences2076-32632025-03-011539610.3390/geosciences15030096A 34-Year Record of Seismic Activity on Vulcano Island, ItalySusanna Falsaperla0Salvatore Spampinato1Ornella Cocina2Giovanni Barreca3Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Osservatorio Etneo, Piazza Roma 2, 95125 Catania, ItalyIstituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Osservatorio Etneo, Piazza Roma 2, 95125 Catania, ItalyIstituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Osservatorio Etneo, Piazza Roma 2, 95125 Catania, ItalyIstituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Osservatorio Etneo, Piazza Roma 2, 95125 Catania, ItalyFollowing the abrupt geochemical and geophysical variations that occurred on the island of Vulcano in September 2021, the search for previous multidisciplinary data on decades-long time spans became necessary to contextualize the newly recorded anomalous variations, which represented a serious threat for the local population. Our analyses of ‘vintage’ reports, old documents and analogue seismograms, broaden our understanding of crustal seismic activity. The results unravel the predominant role of Vulcano’s hydrothermal system with respect to tectonic processes in the generation of seismicity in the analyzed sector. Earthquakes were generally located offshore and achieved a maximum M4.6. A 2D strain release map and DBSCAN application highlight seismogenic volumes to the NW, SW and E offshore of the island and trending NNW-SSE inshore, in agreement with structural patterns. Two major volcano unrests in 1985 and 1988 had seismicity mostly confined to the island. In comparison, the longer duration and typology of seismic signals recorded between 2021 and 2022 make this latest episode peculiar in the context of Vulcano’s past seismic activity.https://www.mdpi.com/2076-3263/15/3/96seismic signalsvolcanic unrestVulcanoseismic monitoringdecades-long datasets |
| spellingShingle | Susanna Falsaperla Salvatore Spampinato Ornella Cocina Giovanni Barreca A 34-Year Record of Seismic Activity on Vulcano Island, Italy Geosciences seismic signals volcanic unrest Vulcano seismic monitoring decades-long datasets |
| title | A 34-Year Record of Seismic Activity on Vulcano Island, Italy |
| title_full | A 34-Year Record of Seismic Activity on Vulcano Island, Italy |
| title_fullStr | A 34-Year Record of Seismic Activity on Vulcano Island, Italy |
| title_full_unstemmed | A 34-Year Record of Seismic Activity on Vulcano Island, Italy |
| title_short | A 34-Year Record of Seismic Activity on Vulcano Island, Italy |
| title_sort | 34 year record of seismic activity on vulcano island italy |
| topic | seismic signals volcanic unrest Vulcano seismic monitoring decades-long datasets |
| url | https://www.mdpi.com/2076-3263/15/3/96 |
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