turbidites; paleoseismology; event-deposits; shelf; 210Pb; 137Cs; macroseismic data
Abstract :
[en] 11 short gravity cores retrieved in the Western Gulf of Corinth, Greece, allowed identifying event deposits whose age ranges were compared to an updated earthquakes catalogue for the area. 210Pb-derived age-depth curves show that the majority of the event deposits may have been triggered by earthquakes. These results show that moderate earthquakes (Mw ~6.0-6.5) may significantly impact different marine settings, from shallow shelves (70-100 m deep) to the basin floor (330 m deep). The deepest coring sites show the best possible record, but one major earthquake is missing and the age of one event deposit does not fit with any known earthquake. More cores are needed to check the spatial extent of each deposit and to validate the absence of record of some earthquakes, like the 1995 Aigion earthquake.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Beckers, Arnaud ; Université de Liège > Département de géographie > Géomorphologie et Géologie du Quaternaire
Mortier, Clément
Beck, Christian
Hubert, Aurelia ; Université de Liège > Département de géographie > Géomorphologie et Géologie du Quaternaire
Reyss, Jean-Louis
Albini, Paola
Develle, Anne-Lise
Tripsanas, Efthymios
Sakellariou, Dimitris
Crouzet, Christian
Rovida, Andrea
Scotti, Oona
Language :
English
Title :
Sedimentary impacts of recent moderate earthquakes in different settings in the Western Gulf of Corinth, Greece
Publication date :
21 April 2015
Number of pages :
A0
Event name :
6th international INQUA meeting on paleoseismology, active tectonics and archeoseismology