Κατεύθυνση Στρατηγικές Διαχείρισης Καταστροφών και Κρίσεων στους Διοικητικούς και Αναπτυξιακούς Τομείς
Library of the School of Science

2023-01-20

2023

Pavlakis Spiridon

Ευθύμιος Λέκκας Καθηγητής Τμήμα Γεωλογίας και Γεωπεριβάλλοντος ΕΚΠΑ,
Εμμανουήλ Σκούρτσος Επίκ. Καθηγητής Τμήμα Γεωλογίας και Γεωπεριβάλλοντος ΕΚΠΑ,
Σούκης Κωνσταντίνος Επίκ. Καθηγητής Τμήμα Γεωλογίας και Γεωπεριβάλλοντος ΕΚΠΑ

Σεισμοτεκτονική μελέτη των περιοχών Κορίνθου και Κρήτης

Greek

seismotectonic study of the Korinth and Crete areas

Greece is characterized as one of the most active seismic regions of the planet, giving the number of earthquakes observed in the country. The Greek landscape was created and adapted to Europe through the last great serogenetic cycle of the Alpine system. This strong seismicity is observed due to the geotectonic position of the Greek site and is controlled by the movements of the lithospheric plates. More specifically, Greece to the South lies ahead of the front of the subduction of Africa's oceanic cortex under the continental cortex of Eurasia. That is, in the process of the conflict of continents (Papanikolaou 2007). In the East the microplate of Anatolia (part of the plate of Arabia) comes in contact with the microplate of the Aegean and moves counterclockwise to it. Finally, in the west, the microplate of Apulia moves clockwise to the Eurasian plate. All these lithospheric movements constantly shape and evolve the Greek space. Seismological science tried to analyze these movements and interpret seismic activity in the wider region (Papazachus 2003). Papazachos (2001) defines six main seismotectonic zones depending on the seismic and tectonic elements of the area. These are the zone of reverse fault lines along the coasts of Albania and northwestern Greece, the zone of right turn fault lines on the Ionian islands, the zone of reverse fault lines along the Greek trench, the zone of normal fault lines along the Greek mountain range, the zone of normal fault lines East West in the Aegean and the zone of the North Aegean and the Sea of Marmarmara. All these zones were established on the basis of the surface earthquakes observed in these areas. Two of the most interesting and active areas not only in Greece but worldwide are the areas of the Corinthian Gulf and Crete. More specifically, the Corinthian is considered the fastest growing region in Europe and the second in the world, while Crete is also very high on the relevant list (Korinthiakos.info).
The Gulf of Corinth is located at the point where the microplate of Anatolia rotates clockwise against the microplate of the Aegean while in the South it is affected by the deterioration of the plaque of Africa under that of the Aegean, thus creating an area of the continental cortex of the Aegean. In the region several large regular address cracks have been observed East West (Papazachus 2003). As you can see from seismological maps, these faults are directly related to the earthquakes that occur in the area. According to the list of historic earthquakes, the Corinthian area has been hit several times by large earthquakes that have destroyed several towns and villages built in the area and many people died as a result. The largest historical earthquake in the area is thought to have been 7 magnitude and it manifested itself in the Aegean region (Papazachos 2003).
Crete also occupies a very important geographical position, just in front of the subduction front. As a result, large quismogenic reverse cracks have been created in the underwater area of the Greek trench with direction NorthwestSoutheast (Papazachos 2003). From the seismic maps of the area it appears that the majority of the quakes observed are located in the
underwater area and are directly related to these large fault lines. These fault lines account for some of the largest earthquakes observed in the country, and are responsible for the largest earthquake observed in the Mediterranean area with a magnitude of 8.3. However, earthquakes have also been observed on the land of Crete associated with large regular ruptures of the East West direction . The list of historical earthquakes demonstrates how intense and catastrophic these large earthquakes can be that occur regularly in the regio in order to protect these study areas need to be intensive seismic and earthquake studies

Science

seismotectonic, study, Korinth, Crete, earthquake, seismology, cracks, Euroasia, plate, microplate, Apulia, Mediteranean , Papazahos, Lekkas

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https://pergamos.lib.uoa.gr/uoa/dl/object/3257562