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Paleoseismological investigations of Aegean-type active faults in mainland Greece and their implications

By
Spyros Pavlides
Spyros Pavlides
1
Department of Geology, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
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Riccardo Caputo
Riccardo Caputo
2
Di.S.G.G., University of Basilicata, Macchia Romana Campus, 85100 Potenza, Italy
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Ioannis Koukouvelas
Ioannis Koukouvelas
3
Department of Geology, University of Patras, GR-26500 Patras, Greece
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Sotiris Kokkalas
Sotiris Kokkalas
3
Department of Geology, University of Patras, GR-26500 Patras, Greece
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Alexandros Chatzipetros
Alexandros Chatzipetros
4
Department of Geology, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
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Published:
January 01, 2006

In this article, paleoseismological studies carried out in the Aegean region during the past decade, mainly on faults occurring in mainland Greece, are reconsidered and their results re-evaluated. We focus on active normal faults and particularly on the principal seismotectonic parameters, such as the coseismic displacement associated with past events and the lengths of the seismogenic structures. Based on new field observations, existing data, and several assumptions, we attempt to calculate the maximum seismic moment possibly associated with past earthquakes and documented from paleoseismological studies. These seismic moments are compared with those estimated from historical earthquakes for which both maximum vertical displacement and surface rupture lengths are known. Similarities and differences of the two data sets are discussed, and we show that paleoseismologically calculated magnitudes and displacements per event appear to be systematically underestimated in the Aegean region, as is their seismic potential. For selected faults, we also obtained reliable values of the recurrence interval of moderate to large earthquakes and estimates of the slip rate.

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GSA Special Papers

Postcollisional Tectonics and Magmatism in the Mediterranean Region and Asia

Yildirim Dilek
Yildirim Dilek
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Spyros Pavlides
Spyros Pavlides
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Geological Society of America
Volume
409
ISBN print:
9780813724096
Publication date:
January 01, 2006

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