{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,12]],"date-time":"2026-04-12T09:21:41Z","timestamp":1775985701503,"version":"3.50.1"},"reference-count":43,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2020,4,24]],"date-time":"2020-04-24T00:00:00Z","timestamp":1587686400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>In this work, we investigate the Mw 5.9 earthquake occurred on 7 November 2019 in the East-Azerbaijan region, in northwestern Iran, which is inserted in the tectonic framework of the East-Azerbaijan Plateau, a complex mountain belt that contains internal major fold-and-thrust belts. We first analyze the Differential Synthetic Aperture Radar Interferometry (DInSAR) measurements obtained by processing the data collected by the Sentinel-1 constellation along ascending and descending orbits; then, we invert the achieved results through analytical modelling, in order to better constrain the geometry and characteristics of the seismogenic source. The retrieved fault model shows a rather shallow seismic structure, with a center depth at about 3 km, approximately NE\u2013SW-striking and southeast-dipping, characterized by a left-lateral strike-slip fault mechanism (strike = 29.17\u00b0, dip = 79.29\u00b0, rake = \u22124.94\u00b0) and by a maximum slip of 0.80 m. By comparing the inferred fault with the already published geological structures, the retrieved solution reveals a minor fault not reported in the geological maps available in the open literature, whose kinematics is compatible with that of the surrounding structures, with the local and regional stress states and with the performed field observations. Moreover, by taking into account the surrounding geological structures reported in literature, we also use the retrieved fault model to calculate the Coulomb Failure Function at the nearby receiver faults. We show that this event may have encouraged, with a positive loading, the activation of the considered receiver faults. This is also confirmed by the distribution of the aftershocks that occurred near the considered surrounding structures. The analysis of the seismic events nucleated along the left-lateral strike-slip minor faults of the East-Azerbaijan Plateau, such as the one analyzed in this work, is essential to improve our knowledge on the seismic hazard estimation in northwestern Iran.<\/jats:p>","DOI":"10.3390\/rs12081346","type":"journal-article","created":{"date-parts":[[2020,4,24]],"date-time":"2020-04-24T11:42:14Z","timestamp":1587728534000},"page":"1346","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Seismogenic Source Model of the 2019, Mw 5.9, East-Azerbaijan Earthquake (NW Iran) through the Inversion of Sentinel-1 DInSAR Measurements"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2921-5086","authenticated-orcid":false,"given":"Emanuela","family":"Valerio","sequence":"first","affiliation":[{"name":"Istituto per il Rilevamento Elettromagnetico dell\u2019Ambiente, IREA-CNR, 80124 Napoli, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9387-5273","authenticated-orcid":false,"given":"Mariarosaria","family":"Manzo","sequence":"additional","affiliation":[{"name":"Istituto per il Rilevamento Elettromagnetico dell\u2019Ambiente, IREA-CNR, 80124 Napoli, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8555-6494","authenticated-orcid":false,"given":"Francesco","family":"Casu","sequence":"additional","affiliation":[{"name":"Istituto per il Rilevamento Elettromagnetico dell\u2019Ambiente, IREA-CNR, 80124 Napoli, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vincenzo","family":"Convertito","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, 80124 Napoli, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5197-7503","authenticated-orcid":false,"given":"Claudio","family":"De Luca","sequence":"additional","affiliation":[{"name":"Istituto per il Rilevamento Elettromagnetico dell\u2019Ambiente, IREA-CNR, 80124 Napoli, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7245-1551","authenticated-orcid":false,"given":"Michele","family":"Manunta","sequence":"additional","affiliation":[{"name":"Istituto per il Rilevamento Elettromagnetico dell\u2019Ambiente, IREA-CNR, 80124 Napoli, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9442-7512","authenticated-orcid":false,"given":"Fernando","family":"Monterroso","sequence":"additional","affiliation":[{"name":"Istituto per il Rilevamento Elettromagnetico dell\u2019Ambiente, IREA-CNR, 80124 Napoli, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7296-2749","authenticated-orcid":false,"given":"Riccardo","family":"Lanari","sequence":"additional","affiliation":[{"name":"Istituto per il Rilevamento Elettromagnetico dell\u2019Ambiente, IREA-CNR, 80124 Napoli, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6037-6072","authenticated-orcid":false,"given":"Vincenzo","family":"De Novellis","sequence":"additional","affiliation":[{"name":"Istituto per il Rilevamento Elettromagnetico dell\u2019Ambiente, IREA-CNR, 80124 Napoli, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,4,24]]},"reference":[{"key":"ref_1","unstructured":"(2020, January 15). Broadband Iranian Network. Available online: http:\/\/www.iiees.ac.ir\/en\/iranian-national-broadband-seismic-network\/."},{"key":"ref_2","unstructured":"(2020, January 15). Iranian Seismological Center. Available online: http:\/\/irsc.ut.ac.ir\/."},{"key":"ref_3","unstructured":"U.S. Geological Survey (2018, March 22). Earthquake Facts and Statistics, Available online: https:\/\/earthquake.usgs.gov\/earthquakes\/browse\/stats.php."},{"key":"ref_4","unstructured":"GEOFON Data Centre (1993). GEOFON Seismic Network. Deutsches GeoForschungsZentrum GFZ. Other\/Seism. Netw."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"2825","DOI":"10.1029\/JB086iB04p02825","article-title":"Determination of earthquake source parameters from waveform data for studies of global and regional seismicity","volume":"86","author":"Dziewonski","year":"1981","journal-title":"J. Geophys. Res."},{"key":"ref_6","first-page":"1","article-title":"The global CMT project 2004\u20132010: Centroid-moment tensors for 13,017 earthquakes","volume":"200\u2013201","author":"Nettles","year":"2012","journal-title":"Phys. Earth Planet. Inter."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"61","DOI":"10.1016\/j.tecto.2013.10.015","article-title":"Recent tectonics of East (Iranian) Azerbaijan from stress state reconstructions","volume":"611","author":"Zamani","year":"2014","journal-title":"Tectonophysics"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"428","DOI":"10.1134\/S0016852117040033","article-title":"Active faults pattern and interplay in the Azerbaijan region (NW Iran)","volume":"51","author":"Faridi","year":"2017","journal-title":"Geotectonics"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"120","DOI":"10.1785\/BSSA0890010120","article-title":"Patterns of historical earthquake rupture in the Iranian Plateau","volume":"89","author":"Berberian","year":"1999","journal-title":"Bull. Seism. Soc. Am."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"185","DOI":"10.1111\/j.1365-246X.1984.tb01931.x","article-title":"Active tectonics of the Alpine-Himalayan Belt between western Turkey and Pakistan","volume":"77","author":"Jackson","year":"1984","journal-title":"Geophys. J. Int."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"45","DOI":"10.1111\/j.1365-246X.1988.tb01387.x","article-title":"The relationship between plate motions and seismic moment tensors, and the rates of active deformation in the Mediterranean and Middle East","volume":"93","author":"Jackson","year":"1988","journal-title":"Geophys. J. Int."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"12471","DOI":"10.1029\/92JB00944","article-title":"Partitioning of strike-slip and convergent motion between Eurasia and Arabia in eastern Turkey and Caucasus","volume":"97","author":"Jackson","year":"1992","journal-title":"J. Geophys. Res."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"5695","DOI":"10.1029\/1999JB900351","article-title":"Global Positioning System constraints on plate kinematics and dynamics in the eastern Mediterranean and Caucasus","volume":"105","author":"McClusky","year":"2000","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"381","DOI":"10.1111\/j.1365-246X.2004.02222.x","article-title":"Present-day crustal deformation and plate kinematics in the Middle East constrained by GPS measurements in Iran and northern Oman","volume":"157","author":"Vernant","year":"2004","journal-title":"Geophys. J. Int."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Copley, A., and Jackson, J. (2006). Active tectonics of the Turkish\u2013Iranian Plateau. Tectonics, 25.","DOI":"10.1029\/2005TC001906"},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Reilinger, R., McClusky, S., Vernant, P., Lawrence, S., Ergintav, S., Cakmak, R., Ozener, H., Kadirov, F., Guliev, I., and Stepanyan, R. (2006). GPS constraints on continental deformation in the Africa\u2013Arabia\u2013Eurasia continental collision zone and implications for the dynamics of plate interactions. J. Geophys. Res. Solid Earth, 111.","DOI":"10.1029\/2005JB004051"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"15","DOI":"10.1093\/gji\/ggt379","article-title":"The 2012 August 11 Ahar earthquakes: Consequences for tectonics and earthquake hazard in the Turkish\u2013Iranian Plateau","volume":"196","author":"Copley","year":"2013","journal-title":"Geophys. J. Int."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"15205","DOI":"10.1029\/95JB01294","article-title":"The accommodation of Arabia-Eurasia plate convergence in Iran","volume":"100","author":"Jackson","year":"1995","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"722","DOI":"10.1785\/BSSA0880030722","article-title":"Global teleseismic earthquake relocation with improved travel times and procedures for depth determination","volume":"88","author":"Engdahl","year":"1998","journal-title":"Bull. Seism. Soc. Am."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"761","DOI":"10.1111\/j.1365-246X.2006.03127.x","article-title":"Relocation and assessment of seismicity in the Iran region","volume":"167","author":"Engdahl","year":"2006","journal-title":"Geophys. J. Int."},{"key":"ref_21","unstructured":"Solaymani Azad, S., Esmaeili, C., Roustai, M., Vajedian, S., Sartipi, A., Khosh Zare, T., and Rajab Zadeh, H.R. (2019). The Geological features of the Torkmanchai NW Iran Earthquake on November 8, 2019 (Mw=5.9). Geol. Surv. Miner. Exploit. Iran, Available online: https:\/\/www.gsi.ir\/en\/news\/24204\/the-geological-features-of-the-torkmanchai-nw-iran-earthquake-on-november-8-2019-mw-5.9-."},{"key":"ref_22","unstructured":"(2020, April 01). Major Faults in Iran (flt2cg), U.S. Government\u2019s Open Data, Available online: https:\/\/catalog.data.gov\/dataset\/major-faults-in-iran-flt2cg-73f76."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1016\/j.epsl.2011.04.029","article-title":"NW Iran\u2013eastern Turkey present-day kinematics: Results from the Iranian permanent GPS network","volume":"307","author":"Djamour","year":"2011","journal-title":"Earth Planet. Sci. Lett."},{"key":"ref_24","first-page":"397","article-title":"On the evidence of the youngest activity of the North Tabriz Fault and the seismicity of Tabriz city","volume":"39","author":"Berberian","year":"1976","journal-title":"Geol. Surv. Iran Rep."},{"key":"ref_25","unstructured":"Ambraseys, N.N., and Melville, C.P. (2005). A History of Persian Earthquakes, Cambridge University Press."},{"key":"ref_26","first-page":"20","article-title":"Paleoseismological and morphological evidence of slip rate variations along the North Tabriz fault (NW Iran)","volume":"640\u2013641","author":"Philip","year":"2015","journal-title":"Tectonophysics"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"138","DOI":"10.1038\/364138a0","article-title":"The displacement field of the Landers earthquake mapped by radar interferometry","volume":"364","author":"Massonnet","year":"1993","journal-title":"Nature"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"266","DOI":"10.1049\/ip-rsn:19971259","article-title":"Interferometric SAR phase unwrapping using the finite element method","volume":"144","author":"Fornaro","year":"1997","journal-title":"IEE Proc. Radar Sonar Navig."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"813","DOI":"10.1109\/36.673674","article-title":"A novel phase unwrapping method based on network programming","volume":"36","author":"Costantini","year":"1998","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"L15305","DOI":"10.1029\/2009GL039293","article-title":"Finite fault inversion of DInSAR coseismic displacement of the 2009 L\u2019Aquila earthquake (Central Italy)","volume":"36","author":"Atzori","year":"2009","journal-title":"Geophys. Res. Lett."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"1135","DOI":"10.1785\/BSSA0750041135","article-title":"Surface deformation due to shear and tensile faults in a half-space","volume":"75","author":"Okada","year":"1985","journal-title":"Bull. Seism. Soc. Am."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"431","DOI":"10.1137\/0111030","article-title":"An algorithm for least-squares estimation of nonlinear parameters","volume":"11","author":"Marquardt","year":"1963","journal-title":"J. Soc. Ind. Appl. Math."},{"key":"ref_33","unstructured":"Menke, W. (1984). Geophysical Data Analysis: Discrete Inverse Theory, Academic Press Inc.. [1st ed.]."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"24347","DOI":"10.1029\/98JB01576","article-title":"Introduction to Special Section: Stress Triggers, Stress Shadows, and Implications for Seismic Hazard","volume":"103","author":"Harris","year":"1998","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"605","DOI":"10.1038\/45144","article-title":"The role of stress transfer in earthquake occurrence","volume":"402","author":"Stein","year":"1999","journal-title":"Nature"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1785\/0120070049","article-title":"Dynamic stresses, Coulomb failure, and remote triggering","volume":"98","author":"Hill","year":"2008","journal-title":"Bull. Seism. Soc. Am."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"1328","DOI":"10.1126\/science.258.5086.1328","article-title":"Change in failure stress on the southern San Andreas fault system caused by the 1992 magnitude 7.4 Landers earthquake","volume":"258","author":"Stein","year":"1992","journal-title":"Science"},{"key":"ref_38","first-page":"935","article-title":"Static stress changes and the triggering of earthquakes","volume":"84","author":"King","year":"1994","journal-title":"Bull. Seismol. Soc. Amer."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1687","DOI":"10.1126\/science.255.5052.1687","article-title":"Response of regional seismicity to the static stress change produced by the Loma Prieta Earthquake","volume":"255","author":"Reasenberg","year":"1992","journal-title":"Science"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"B02303","DOI":"10.1029\/2003JB002607","article-title":"Stress triggering in thrust and subduction earthquakes, and stress interaction between the southern San Andreas and nearby thrust and strike-slip faults","volume":"109","author":"Lin","year":"2004","journal-title":"J. Geophys. Res."},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Toda, S., Stein, R.S., Richards-Dinger, K., and Bozkurt, S. (2005). Forecasting the evolution of seismicity in southern California: Animations built on earthquake stress transfer. J. Geophys. Res., 110.","DOI":"10.1029\/2004JB003415"},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"244","DOI":"10.1016\/j.jseaes.2018.08.010","article-title":"Coseismic displacement of the 5 April 2017 Mashhad earthquake (Mw 6.1) in NE Iran through Sentinel-1A TOPS data: New implications for the strain partitioning in the southern Binalud Mountains","volume":"169","author":"Su","year":"2019","journal-title":"J. Asian Earth Sci."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"522","DOI":"10.1093\/gji\/ggv306","article-title":"The Varzaghan\u2013Ahar, Iran, Earthquake Doublet (Mw 6.4, 6.2): Implications for the geodynamics of northwest Iran","volume":"203","author":"Ghods","year":"2015","journal-title":"Geophys. J. Int."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/12\/8\/1346\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,13]],"date-time":"2025-10-13T13:45:26Z","timestamp":1760363126000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/12\/8\/1346"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,4,24]]},"references-count":43,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2020,4]]}},"alternative-id":["rs12081346"],"URL":"https:\/\/doi.org\/10.3390\/rs12081346","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,4,24]]}}}