{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,24]],"date-time":"2025-11-24T12:45:59Z","timestamp":1763988359208,"version":"build-2065373602"},"reference-count":93,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2022,9,23]],"date-time":"2022-09-23T00:00:00Z","timestamp":1663891200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia","award":["D59C19000130005"],"award-info":[{"award-number":["D59C19000130005"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The Trecastagni Fault (TF) is an important tectonic structure in the middle-lower southern flank of Mt. Etna volcano. It is characterised by evident morphological slopes with normal dip-slip ruptures that directly affect roads and buildings. The TF plays a key role in the complex framework of the volcano dynamics since it represents part of the southern boundary of the unstable sector. Seismic surveys have been performed on three different areas of the fault to gain insights into the seismic stratigraphic structure of the subsoil. We considered the seismic activity of a sector of the territory affecting the surface evidence of the Trecastagni Fault in the period between 1980 and 2021 in order to highlight the main seismic release and define the space\u2013time distribution of seismicity. Most of the seismicity is located in the north-western portion, while the central and southern sectors are characterised by low seismic activity. The strongest earthquakes occur mainly within the first 5 km of depth in the form of swarms and\/or isolated shocks. Ground deformation techniques (levelling, In-SAR and two continuous extensometers) evidence a continuous aseismic slip of the TF that is interrupted by short accelerations accompanied by shallow seismicity. The Trecastagni Fault dynamics are strictly linked to magma pressurisation and intrusive episodes of Mt. Etna that induce additional stress and promote its slip along the fault plane. Multidisciplinary data analysed in this work, evidenced the dual behaviour of the fault, from aseismic creep to stick-slip, and the relation with magmatic activity, also suggesting the time delay in the response of the fault after the intense stress induced by dyke intrusion.<\/jats:p>","DOI":"10.3390\/rs14194760","type":"journal-article","created":{"date-parts":[[2022,9,26]],"date-time":"2022-09-26T03:34:17Z","timestamp":1664163257000},"page":"4760","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Characterization of an Active Fault through a Multiparametric Investigation: The Trecastagni Fault and Its Relationship with the Dynamics of Mt. Etna Volcano (Sicily, Italy)"],"prefix":"10.3390","volume":"14","author":[{"given":"Salvatore","family":"Alparone","sequence":"first","affiliation":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Sezione di Catania, Piazza Roma, 2, 95125 Catania, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0435-7763","authenticated-orcid":false,"given":"Alessandro","family":"Bonforte","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Sezione di Catania, Piazza Roma, 2, 95125 Catania, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8055-3059","authenticated-orcid":false,"given":"Salvatore","family":"Gambino","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Sezione di Catania, Piazza Roma, 2, 95125 Catania, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9968-0880","authenticated-orcid":false,"given":"Sabrina","family":"Grassi","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Sezione di Scienze della Terra, Universit\u00e0 di Catania, Corso Italia, 57, 95129 Catania, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3258-9975","authenticated-orcid":false,"given":"Francesco","family":"Guglielmino","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Sezione di Catania, Piazza Roma, 2, 95125 Catania, Italy"}]},{"given":"Federico","family":"Latino","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Sezione di Scienze della Terra, Universit\u00e0 di Catania, Corso Italia, 57, 95129 Catania, Italy"}]},{"given":"Gabriele","family":"Morreale","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Sezione di Scienze della Terra, Universit\u00e0 di Catania, Corso Italia, 57, 95129 Catania, Italy"}]},{"given":"Graziano","family":"Patti","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Sezione di Scienze della Terra, Universit\u00e0 di Catania, Corso Italia, 57, 95129 Catania, Italy"}]},{"given":"Laura","family":"Privitera","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Sezione di Catania, Piazza Roma, 2, 95125 Catania, Italy"}]},{"given":"Francesco","family":"Obrizzo","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, Sezione di Napoli, Via Diocleziano, 328, 80124 Napoli, Italy"}]},{"given":"Andrea","family":"Ursino","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Sezione di Catania, Piazza Roma, 2, 95125 Catania, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1738-1850","authenticated-orcid":false,"given":"Sebastiano","family":"Imposa","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Sezione di Scienze della Terra, Universit\u00e0 di Catania, Corso Italia, 57, 95129 Catania, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"17467","DOI":"10.1029\/96JB01151","article-title":"Fast deformation processes and eruptive activity at Mount Etna (Italy)","volume":"101","author":"Bonaccorso","year":"1996","journal-title":"J. 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