{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,23]],"date-time":"2026-02-23T01:25:49Z","timestamp":1771809949025,"version":"3.50.1"},"reference-count":32,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2023,4,21]],"date-time":"2023-04-21T00:00:00Z","timestamp":1682035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>We propose a new statistical analysis of the Acoustic Emissions (AE) produced in a series of triaxial deformation experiments leading to fractures and failure of two different rocks, namely, Darley Dale Sandstone (DDS) and AG Granite (AG). By means of q-statistical formalism, we are able to characterize the pre-failure processes in both types of rocks. In particular, we study AE inter-event time and AE inter-event distance distributions. Both of them can be reproduced with q-exponential curves, showing universal features that are observed here for the first time and could be important in order to understand more in detail the dynamics of rock fractures.<\/jats:p>","DOI":"10.3390\/e25040701","type":"journal-article","created":{"date-parts":[[2023,4,21]],"date-time":"2023-04-21T10:11:25Z","timestamp":1682071885000},"page":"701","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Acoustic Emissions in Rock Deformation and Failure: New Insights from Q-Statistical Analysis"],"prefix":"10.3390","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6939-3549","authenticated-orcid":false,"given":"Sergio C.","family":"Vinciguerra","sequence":"first","affiliation":[{"name":"Department of Earth Sciences, University of Torino, 10125 Torino, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2929-5044","authenticated-orcid":false,"given":"Annalisa","family":"Greco","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering and Architecture, University of Catania, 95125 Catania, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9368-5800","authenticated-orcid":false,"given":"Alessandro","family":"Pluchino","sequence":"additional","affiliation":[{"name":"Department of Physics and Astronomy \u201cEttore Majorana\u201d, University of Catania, 95123 Catania, Italy"},{"name":"INFN Sezione di Catania, 95123 Catania, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8290-8183","authenticated-orcid":false,"given":"Andrea","family":"Rapisarda","sequence":"additional","affiliation":[{"name":"Department of Physics and Astronomy \u201cEttore Majorana\u201d, University of Catania, 95123 Catania, Italy"},{"name":"INFN Sezione di Catania, 95123 Catania, Italy"},{"name":"Complexity Science Hub Vienna, 1080 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9387-9194","authenticated-orcid":false,"given":"Constantino","family":"Tsallis","sequence":"additional","affiliation":[{"name":"Complexity Science Hub Vienna, 1080 Vienna, Austria"},{"name":"Centro Brasileiro de Pesquisas Fisicas and National Institute of Science and Technology for Complex Systems, Rio de Janeiro 22290-180, Brazil"},{"name":"Santa Fe Institute, Santa Fe, NM 87501, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2283","DOI":"10.1590\/1679-78252486","article-title":"Acoustic Emission Analysis of Cement Mortar Specimens During Three Point Bending Tests","volume":"13","author":"Stavrakas","year":"2016","journal-title":"Lat. 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