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Article

The 27 September 2021 Earthquake in Central Crete (Greece)—Detailed Analysis of the Earthquake Sequence and Indications for Contemporary Arc-Parallel Extension to the Hellenic Arc

1
Section of Geography and Climatology, Department of Geology and Geoenvironment, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15784 Athens, Greece
2
Section of Geophysics-Geothermics, Department of Geology and Geoenvironment, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15784 Athens, Greece
3
Department of Physical and Environmental Geography, Aristotle University of Thessaloniki (AUTH), 54124 Thessaloniki, Greece
4
Institute of Geodynamics, National Observatory of Athens, Lofos Nymfon, 11810 Athens, Greece
*
Author to whom correspondence should be addressed.
Academic Editor: Valerio Comerci
Appl. Sci. 2022, 12(6), 2815; https://doi.org/10.3390/app12062815
Received: 26 January 2022 / Revised: 2 March 2022 / Accepted: 4 March 2022 / Published: 9 March 2022
(This article belongs to the Special Issue Mapping, Monitoring and Assessing Disasters)
The Arkalochori village in central Crete was hit by a large earthquake (Mw = 6.0) on 27 September 2021, causing casualties, injuries, and severe damage to the infrastructure. Due to the absence of apparent surface rupture and the initial focal mechanism solution of the seismic event, we initiated complementary, multi-disciplinary research by combining seismological and remote sensing data processing, followed by extensive field validation. Detailed geological mapping, fault surface measuring accompanied with tectonic analysis, fault photorealistic model creation by unmanned aerial system data processing, post-seismic surface deformation analysis by DInSAR image interpretation coupled with accurately relocated epicenters recorded by locally established seismographs have been carried out. The combination of the results obtained from these techniques led to the determination of the contemporary tectonic stress regime that caused the earthquake in central Crete, which was found compatible with extensional processes parallel to the Hellenic arc. View Full-Text
Keywords: Arkalochori; Messara Basin; Heraklion Basin; Kastelli fault zone; supra detachment basin; fault segmentation; double-difference relocation; DInSAR Arkalochori; Messara Basin; Heraklion Basin; Kastelli fault zone; supra detachment basin; fault segmentation; double-difference relocation; DInSAR
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MDPI and ACS Style

Vassilakis, E.; Kaviris, G.; Kapetanidis, V.; Papageorgiou, E.; Foumelis, M.; Konsolaki, A.; Petrakis, S.; Evangelidis, C.P.; Alexopoulos, J.; Karastathis, V.; Voulgaris, N.; Tselentis, G.-A. The 27 September 2021 Earthquake in Central Crete (Greece)—Detailed Analysis of the Earthquake Sequence and Indications for Contemporary Arc-Parallel Extension to the Hellenic Arc. Appl. Sci. 2022, 12, 2815. https://doi.org/10.3390/app12062815

AMA Style

Vassilakis E, Kaviris G, Kapetanidis V, Papageorgiou E, Foumelis M, Konsolaki A, Petrakis S, Evangelidis CP, Alexopoulos J, Karastathis V, Voulgaris N, Tselentis G-A. The 27 September 2021 Earthquake in Central Crete (Greece)—Detailed Analysis of the Earthquake Sequence and Indications for Contemporary Arc-Parallel Extension to the Hellenic Arc. Applied Sciences. 2022; 12(6):2815. https://doi.org/10.3390/app12062815

Chicago/Turabian Style

Vassilakis, Emmanuel, George Kaviris, Vasilis Kapetanidis, Elena Papageorgiou, Michael Foumelis, Aliki Konsolaki, Stelios Petrakis, Christos P. Evangelidis, John Alexopoulos, Vassilios Karastathis, Nicholas Voulgaris, and Gerassimos-Akis Tselentis. 2022. "The 27 September 2021 Earthquake in Central Crete (Greece)—Detailed Analysis of the Earthquake Sequence and Indications for Contemporary Arc-Parallel Extension to the Hellenic Arc" Applied Sciences 12, no. 6: 2815. https://doi.org/10.3390/app12062815

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