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Geophys."],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The 2022\u2019s seismo-volcanic crisis on S\u00e3o Jorge Island of the Azores archipelago has provided an opportunity to deploy a portable infrasound array as a collaborative work between the Research Institute for Volcanology and Risk Assessment (IVAR) of the University of the Azores (UAc) and the University of Florence (UniFI). The four-element array, SJ1, became operational on 2 April 2022. Despite being deployed in a first stage to monitor the activities related to the volcanic unrest on S\u00e3o Jorge Island, SJ1 worked as a supporting tool to the existing IMS infrasound station IS42, located on Graciosa Island at\u2009~\u200940\u00a0km distance, leading to an enhancement of the infrasonic monitoring network in the region. This work emphasises the importance of low-cost portable infrasound arrays to improve the coverage of infrasound observations for local and regional monitoring purposes in the Azores region. Two events recorded by both arrays are briefly exemplified: a low-magnitude earthquake on S\u00e3o Jorge Island and a fireball which crossed the North Atlantic Ocean. Infrasound data from both arrays are combined to obtain a fast but still accurate source localization of the analysed events.<\/jats:p>","DOI":"10.1007\/s00024-024-03469-1","type":"journal-article","created":{"date-parts":[[2024,4,15]],"date-time":"2024-04-15T14:02:01Z","timestamp":1713189721000},"page":"5049-5064","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["The use of a low-cost, small-aperture array as an auxiliary tool to improve infrasound monitoring in the Azores region"],"prefix":"10.1007","volume":"182","author":[{"given":"Maria","family":"do C\u00e9u Jesus","sequence":"first","affiliation":[]},{"given":"Giacomo","family":"Belli","sequence":"additional","affiliation":[]},{"given":"Duccio","family":"Gheri","sequence":"additional","affiliation":[]},{"given":"Sandro","family":"Matos","sequence":"additional","affiliation":[]},{"given":"Nicolau","family":"Wallenstein","sequence":"additional","affiliation":[]},{"given":"Emanuele","family":"Marchetti","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2024,4,15]]},"reference":[{"issue":"1","key":"3469_CR1","doi-asserted-by":"publisher","first-page":"291","DOI":"10.1111\/j.1365-246X.2008.03912.x","volume":"175","author":"SJ Arrowsmith","year":"2008","unstructured":"Arrowsmith, S. 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