{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,18]],"date-time":"2026-02-18T02:37:24Z","timestamp":1771382244238,"version":"3.50.1"},"reference-count":49,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2020,1,7]],"date-time":"2020-01-07T00:00:00Z","timestamp":1578355200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Radar Interferometry is a widely used method for estimating ground deformation, as it provides precision to a few millimeters to centimeters, and at the same time, a wide spatial coverage of the study area. On 9 July 1956, one of the strongest earthquakes of the 20th century in the area of the South Aegean, occurred in Amorgos, with a magnitude of Mw = 7.7. The objective of this research is to map ground deformation in Amorgos island, using InSAR techniques. We conducted a multi-temporal analysis of all available data from 2003 to 2019 by exploiting historical ENVISAT SAR imagery, as well as the dense archive of Sentinel-1 SLC imagery. Persistent Scatterer Interferometry (PS) and Small Baseline Subset (SBAS) methods were implemented. Results of both data-sets indicate a small-scale deformation on the island. A multi-track analysis was implemented on Sentinel-1 data to decompose the line of sight velocities to vertical and horizontal. The central south coast is experiencing horizontal movement, while uplift of a maximum value of 5 mm\/y is observed in the southeastern coast. The combination of the good spatial coverage achievable via InSAR, with GPS measurements, is suggested an important tool for the seamless monitoring of Amorgos island towards tectonic hazard estimation.<\/jats:p>","DOI":"10.3390\/s20020338","type":"journal-article","created":{"date-parts":[[2020,1,8]],"date-time":"2020-01-08T03:59:57Z","timestamp":1578455997000},"page":"338","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":35,"title":["Multi-Temporal InSAR Analysis for Monitoring Ground Deformation in Amorgos Island, Greece"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2938-2976","authenticated-orcid":false,"given":"Stavroula","family":"Alatza","sequence":"first","affiliation":[{"name":"Higher Geodesy Laboratory and Dionysos Satellite Observatory, School of Rural and Surveying Engineering, National Technical University of Athens, 9 Iroon Polytechniou str, 15780 Zographos, Greece"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2845-9791","authenticated-orcid":false,"given":"Ioannis","family":"Papoutsis","sequence":"additional","affiliation":[{"name":"Institute for Astronomy, Astrophysics, Space Applications &amp; Remote Sensing, National Observatory of Athens, Vas. Pavlou &amp; I. Metaxa str, 15236 Penteli, Greece"}]},{"given":"Demitris","family":"Paradissis","sequence":"additional","affiliation":[{"name":"Higher Geodesy Laboratory and Dionysos Satellite Observatory, School of Rural and Surveying Engineering, National Technical University of Athens, 9 Iroon Polytechniou str, 15780 Zographos, Greece"}]},{"given":"Charalampos","family":"Kontoes","sequence":"additional","affiliation":[{"name":"Institute for Astronomy, Astrophysics, Space Applications &amp; Remote Sensing, National Observatory of Athens, Vas. Pavlou &amp; I. Metaxa str, 15236 Penteli, Greece"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1982-8214","authenticated-orcid":false,"given":"Gerassimos A.","family":"Papadopoulos","sequence":"additional","affiliation":[{"name":"International Society for the Prevention &amp; Mitigation of Natural Hazards, 10681 Athens, Greece"}]}],"member":"1968","published-online":{"date-parts":[[2020,1,7]]},"reference":[{"key":"ref_1","unstructured":"ISC-GEM (2019, October 16). The ISC-GEM Global Instrumental Earthquake Catalogue; Version 4.0, Dated 26 January 2017. Available online: http:\/\/www.isc.ac.uk\/iscgem\/download.php."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"383","DOI":"10.1016\/0012-821X(92)90140-Q","article-title":"The large 1956 earthquake in the South Aegean: Macroseismic field configuration, faulting, and neotectonics of Amorgos Island","volume":"113","author":"Papadopoulos","year":"1992","journal-title":"Earth Planet. Sci. 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