{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T20:38:09Z","timestamp":1773693489128,"version":"3.50.1"},"reference-count":51,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2023,2,17]],"date-time":"2023-02-17T00:00:00Z","timestamp":1676592000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"GENESIS: GNSS Environmental and Societal Missions\u2014Subproject UPC","award":["PID2021-126436OB-C21"],"award-info":[{"award-number":["PID2021-126436OB-C21"]}]},{"name":"GENESIS: GNSS Environmental and Societal Missions\u2014Subproject UPC","award":["MCIN\/AEI\/10.13039\/501100011033\/"],"award-info":[{"award-number":["MCIN\/AEI\/10.13039\/501100011033\/"]}]},{"name":"GENESIS: GNSS Environmental and Societal Missions\u2014Subproject UPC","award":["2021 FI_B 00471"],"award-info":[{"award-number":["2021 FI_B 00471"]}]},{"name":"EU ERDF \u201cA way to do Europe\u201d","award":["PID2021-126436OB-C21"],"award-info":[{"award-number":["PID2021-126436OB-C21"]}]},{"name":"EU ERDF \u201cA way to do Europe\u201d","award":["MCIN\/AEI\/10.13039\/501100011033\/"],"award-info":[{"award-number":["MCIN\/AEI\/10.13039\/501100011033\/"]}]},{"name":"EU ERDF \u201cA way to do Europe\u201d","award":["2021 FI_B 00471"],"award-info":[{"award-number":["2021 FI_B 00471"]}]},{"name":"Generalitat de Catalunya\u2014FI AGAUR 2021","award":["PID2021-126436OB-C21"],"award-info":[{"award-number":["PID2021-126436OB-C21"]}]},{"name":"Generalitat de Catalunya\u2014FI AGAUR 2021","award":["MCIN\/AEI\/10.13039\/501100011033\/"],"award-info":[{"award-number":["MCIN\/AEI\/10.13039\/501100011033\/"]}]},{"name":"Generalitat de Catalunya\u2014FI AGAUR 2021","award":["2021 FI_B 00471"],"award-info":[{"award-number":["2021 FI_B 00471"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Every year, earthquakes cause thousands of casualties and high economic losses. For example, in the time frame from 1998 to 2018, the total number of casualties due to earthquakes was larger than 846 thousand people, and the recorded economic losses were about USD 661 billion. At present, there are no earthquake precursors that can be used to trigger a warning. However, some studies have analyzed land surface temperature (LST) anomalies as a potential earthquake precursor. In this study, a large database of global LST data from the Geostationary Operational Environmental Satellite (GOES) and AQUA satellites during the whole year 2020 has been used to study the LST anomalies in the areas affected by earthquakes. A total of 1350 earthquakes with a magnitude larger than M4 were analyzed. Two methods widely used in the literature have been used to detect LST anomalies in the detrended LST time series: the interquartile (IQT) method and the standard deviation (STD). To the authors\u2019 knowledge, it is the first time that the confusion matrix (CM), the receiver operating characteristic curve (ROC), and some other figures of merit (FoM) are used to assess and optimize the performance of the methods, and to select the optimum combination that could be used as a proxy for their occurrence. A positive anomaly was found a few days before the studied earthquakes, followed by the LST decrease after the event. Further studies over larger regions and more extended periods will be needed to consolidate these encouraging results.<\/jats:p>","DOI":"10.3390\/rs15041110","type":"journal-article","created":{"date-parts":[[2023,2,20]],"date-time":"2023-02-20T01:36:37Z","timestamp":1676856997000},"page":"1110","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["First Results on the Systematic Search of Land Surface Temperature Anomalies as Earthquakes Precursors"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0671-4808","authenticated-orcid":false,"given":"Badr-Eddine","family":"Boudriki Semlali","sequence":"first","affiliation":[{"name":"CommSensLab\u2014UPC, Department of Signal Theory and Communications, Universitat Polit\u00e8cnica de Catalunya\u2014BarcelonaTech, 08034 Barcelona, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0300-4106","authenticated-orcid":false,"given":"Carlos","family":"Molina","sequence":"additional","affiliation":[{"name":"CommSensLab\u2014UPC, Department of Signal Theory and Communications, Universitat Polit\u00e8cnica de Catalunya\u2014BarcelonaTech, 08034 Barcelona, Spain"},{"name":"IEEC\u2014Institut d\u2019Estudis Espacials de Catalunya, 08034 Barcelona, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0031-0802","authenticated-orcid":false,"given":"Hyuk","family":"Park","sequence":"additional","affiliation":[{"name":"CommSensLab\u2014UPC, Department of Signal Theory and Communications, Universitat Polit\u00e8cnica de Catalunya\u2014BarcelonaTech, 08034 Barcelona, Spain"},{"name":"IEEC\u2014Institut d\u2019Estudis Espacials de Catalunya, 08034 Barcelona, Spain"},{"name":"Department of Physics, Universitat Polit\u00e8cnica de Catalunya\u2014BarcelonaTech, 08860 Castelldefels, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9514-4992","authenticated-orcid":false,"given":"Adriano","family":"Camps","sequence":"additional","affiliation":[{"name":"CommSensLab\u2014UPC, Department of Signal Theory and Communications, Universitat Polit\u00e8cnica de Catalunya\u2014BarcelonaTech, 08034 Barcelona, Spain"},{"name":"IEEC\u2014Institut d\u2019Estudis Espacials de Catalunya, 08034 Barcelona, Spain"},{"name":"College of Engineering, UAE-University, Al Ain P.O. Box 15551, United Arab Emirates"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,17]]},"reference":[{"key":"ref_1","unstructured":"Number of Deaths from Earthquakes (2021, September 21). Our World in Data. Available online: https:\/\/ourworldindata.org\/grapher\/earthquake-deaths."},{"key":"ref_2","unstructured":"(2022, November 22). IDDR2018_Economic Losses.pdf. Available online: https:\/\/www.unisdr.org\/2016\/iddr\/IDDR2018_Economic%20Losses.pdf."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"15","DOI":"10.14500\/aro.10591","article-title":"Land Surface Temperature Anomalies Detection for the Strong Earthquakes in 2018","volume":"8","author":"Rasul","year":"2020","journal-title":"ARO"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1013","DOI":"10.5194\/nhess-18-1013-2018","article-title":"Pre-seismic anomalies from optical satellite observations: A review","volume":"18","author":"Jiao","year":"2018","journal-title":"Nat. Hazards Earth Syst. 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