Sedimentary impacts of recent moderate earthquakes in different settings in the Western Gulf of Corinth, Greece

Arnaud Beckers 1 Mortier C. 1 Christian Beck 2 Aurélia Hubert-Ferrari 1 Jean-Louis Reyss 3 Paola Albini 4 Anne-Lise Develle 5 Efthymios Tripsanas 6 D. Sakellariou 6 Christian Crouzet 2 Andrea Rovida 4 Oona Scotti 7
1 Dept of Geography
2 ISTerre - Institut des Sciences de la Terre
3 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
4 Sezione di Milano-Pavia
5 EDYTEM - Environnements, Dynamiques et Territoires de la Montagne
6 Institut of Oceanography
7 IRSN - Institut de Radioprotection et de Sûreté Nucléaire
Abstract : 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.
Keywords : paleoseismology marine sediments event deposits sediment density flows turbidite
Type de document :
Communication dans un congrès
6th International INQUA Meeting on Paleoseismology, Active Tectonics and Archaeoseismology, 19-24 April 2015, Pescina, Fucino Basin, Italy, Apr 2015, Pescina, Italy. 6th International INQUA Meeting on Paleoseismology, Active Tectonics and Archaeoseismology, 19-24 April 2015, Pescina, Fucino Basin, Italy, 2015
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https://hal-insu.archives-ouvertes.fr/insu-01196051
Contributeur : Christian Crouzet <>
Soumis le : mercredi 9 septembre 2015 - 09:12:12
Dernière modification le : mardi 29 mai 2018 - 12:51:02

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Citation

Arnaud Beckers, Mortier C., Christian Beck, Aurélia Hubert-Ferrari, Jean-Louis Reyss, et al.. Sedimentary impacts of recent moderate earthquakes in different settings in the Western Gulf of Corinth, Greece. 6th International INQUA Meeting on Paleoseismology, Active Tectonics and Archaeoseismology, 19-24 April 2015, Pescina, Fucino Basin, Italy, Apr 2015, Pescina, Italy. 6th International INQUA Meeting on Paleoseismology, Active Tectonics and Archaeoseismology, 19-24 April 2015, Pescina, Fucino Basin, Italy, 2015. 〈insu-01196051〉

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