Paleoseismological investigations along the Kera fault zone, Western Crete: implications for seismic hazard assessment

 
Το τεκμήριο παρέχεται από τον φορέα :

Αποθετήριο :
Δελτίο της Ελληνικής Γεωλογικής Εταιρίας  | ΕΚΤ eJournals
δείτε την πρωτότυπη σελίδα τεκμηρίου
στον ιστότοπο του αποθετηρίου του φορέα για περισσότερες πληροφορίες και για να δείτε όλα τα ψηφιακά αρχεία του τεκμηρίου*
κοινοποιήστε το τεκμήριο



Σημασιολογικός εμπλουτισμός από το EKT
Τμήμα περιοδικού (EL)
Επιστημονικό άρθρο (EL)
2001 (EL)
Paleoseismological investigations along the Kera fault zone, Western Crete: implications for seismic hazard assessment (EN)
ANDREOU, C.
ATAKAN, Κ.
FOUNTOULIS, I.
MOUSLOPOULOU, V.
The island of Crete is the principal landmass in the Aegean arc system. Collision of the Euroasian plate in the north and the African plate in the south gives rise to the subduction related deformation along the Hellenic arc. As a result of the complex deformation, the area is characterized by high seismic activity. Paleoseismic investigations performed along the Kera fault scarp, which is part of a N-S oriented fault system along the Spatha peninsula (NW-Crete), show clear evidence of repeated normal faulting events. Five distinct episodes of faulting are observed. The first two are probably of Middle-Miocene or younger age representing older tectonic episodes, whereas the last three indicate co-seismic displacements most likely during the Pleistocene and Holocene. This is in good agreement with the previous estimates of Holocene average slip rate and the recurrence time estimate of large earthquakes in the order of ca. lmm/yr and 3000yrs, respectively. The Kera fault represents a NE-SW oriented bend in a N-S fault system and therefore has a minor left-lateral strike-slip component. During the 1980's at least three earthquakes could be associated with the Kera fault. More recently, in 1999, there were three small (with magnitudes between 3.0-4.5) offshore events that are probably associated with the same fault system in the offshore extension (to the north) of the N-S oriented faults along the Spatha peninsula. The existence of these earthquakes as well as the recent paleoseismic results clearly demonstrates the need of revising the seismic hazard assessment of the area. The length of the N-S oriented fault system, where the Kera fault represents the middle segment, reaches to a total of 30 km., and is capable of generating an earthquake of magnitude in the range 6.0-6.7. Such a (shallow) earthquake occurring at a short distance to the densely populated north-western coast of Crete is likely to have significant consequences. (EN)
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article (EN)
Palaeoseismology (EN)
colluvial wedge (EN)
earthquake event (EN)
active fault (EN)
Ελληνική Γεωλογική Εταιρεία
Δελτίο της Ελληνικής Γεωλογικής Εταιρίας
Seismology
Δελτίο της Ελληνικής Γεωλογικής Εταιρίας
Αγγλική γλώσσα
2001-01-01
https://ejournals.epublishing.ekt.gr/index.php/geosociety/article/view/17259
Geological Society of Greece (EN)
0438-9557
2529-1718
Δελτίο της Ελληνικής Γεωλογικής Εταιρείας; Τόμ. 34 Αρ. 4 (2001): 9o διεθνές Συνέδριο της ΕΓΕ; 1531-1537 (EL)
Bulletin of the Geological Society of Greece; Vol. 34 No. 4 (2001): 9th International Conference of the Geological Society of Greece; 1531-1537 (EN)
https://creativecommons.org/licenses/by-nc/4.0 (EN)
Copyright (c) 2018 V. MOUSLOPOULOU, C. ANDREOU, Κ. ATAKAN, I. FOUNTOULIS (EN)



*Η εύρυθμη και αδιάλειπτη λειτουργία των διαδικτυακών διευθύνσεων των συλλογών (ψηφιακό αρχείο, καρτέλα τεκμηρίου στο αποθετήριο) είναι αποκλειστική ευθύνη των αντίστοιχων Φορέων περιεχομένου.