Paleoseismological investigation of the eastern "segment" of the Heliki fault, Gulf of Corinth, Greece

Published: Jan 1, 2001
Active fault Heliki Corinthian Gulf Paleoseismology

Paleoseismological analysis based on geological data enable us to understand the recent seismic history of the Eliki fault. Along the eastern "segment (or strand)" scarp 5 trenches have been excavated (8x5x2m), their walls were mapped in scale 1:20 and further analyzed by precise tectono-stratigraphic methodology. The Kerynitis river, which crosses the Eliki fault from S to Ν and supplies the alluvial plain, has subsided at a rate of 1.4 mm/ yr. The river was running from west to east, resulting the fluvial conglomerates in the trenches, which have buried under the colluvial sediments. Based on colluvium stratigraphy, displacement of distinct horizons, deposition of sedimentary layers and C14 dating, faulting events have been identified affecting unconsolidated sediments in the trench. The penultimate 373 BC event and the two younger events with a throw of 0.93 m and 1.37 m respectively, the third event, with a throw of 0.44 m, suggest a variable seismic history.

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COLLIER, R.E., LEEDER, M.R., ROWE, P.J., ATKINSON, T.C., 1992. Rates of tectonic uplift in the Corinth and Megara basins, central Greece. Tectonics 11, 1159-1167.
CRONE, A.J., OMDAHL, M.E., 1987. Direction in paleoseismology. USGS, Proceedings Conference XXXIX, Open-File report 87-637, 456 pp.
DOUTSOS, T, PIPER, D.J.W., 1990. Listric faulting, sedimentation, and morphological evolution of the Quaternary eastern Corinth rift, Greece: first stages of continental rifting. Bulletin of the Geological Society of America 102, 812-829.
DOUTSOS, T, POULIMENOS, G., 1992. Geometry and kinematics of active faults and their seismotectonic significance in the western Corinth-Patras rift (Greece). Journal of Structural Geology 14, 689-699.
DOUTSOS, T, KONTOPOULOS, N., POULIMENOS, G., 1988. The Corinth-Patras rift as the initial stage of continental fragmentation behind an active island arc (Greece). Basin Research 1, 177-190.
KOUKOUVELAS, I.K., 1998a. Transfer zones along active normal faults in Peloponnesus, Greece. Bulletin of Geological Society of Greece 32, 221-229.
KOUKOUVELAS, I.K., 1998b. The Egion fault, earthquake-related and long-term deformation, Gulf of Corinth, Greece. Journal of Geodynamics 26, 501-513.
KOUKOUVELAS, I.K., DOUTSOS, T, 1996. Implication of structural segmentation during earthquakes: the 1995 Egion earthquake, Gulf of Corinth, Greece. Journal of Structural Geology 18, 1381-1388.
KOUKOUVELAS I., STAMATOPOULOS L., KATSONOPOULOU D. AND PAVLIDES S. 2001. A paleoseismological and geoarchaeological investigation of the Eliki fault, Gulf of Corinth, Greece. J. Struct. Geol., V23, 2-3, 531-543
MARINATOS, S.N., 1960. A submerged town of classical Greece. Arcaeology 113, 186-193.
MOUYARIS, N., PAPASTAMATIOU, D., VITA-FINZI, C, 1992. The Hélice fault? Terra Nova 4, 124-129.
PAPADOPOULOS, G.(Ed), 2000, Historical Earthquakes and Tsunamis in the Corinth Rift, Central Greece. Nat. Observ. Athens, Inst. Geodyn. 128pp.
PAVLIDES, S., 1996. First Palaeoseismological Results from Greece. Annali di Geophysica 39, 545-555.
PAVLIDES, B.S., ZHANG, P., PANTOSTI, D., 1999. Earthquakes, active Faulting, and paleo-seismological studies for the reconstruction of seismic history of faults. Tectonophysics 308, vii-x,.
PAVLIDES S., CAPUTO R., CHATZIPETROS Α., 2000. Empirical relationships among earthquake magnitude, surface ruptures and maximum displacement in the broader Aegean Region. Panayides et. al. (eds.), 2000, Proc. 3rd I.C.G.E.M.
ΠΑΥΛΙΔΗΣ, Σ. & ΧΑΤΖΗΠΕΤΡΟΣ, Α., 2000. Γεωλογία των Σεισμών - Σημειώσεις Νεοτεκτονικής, Α.Π.Θ. Πανεπ/κο Τυπογρ., σελ. 130.
SCHMIDT, J., 1879. Studienunber Erdbeben, pp. 68-83. Leipzig.
SOTER, S., KATSONOPOULOU, D., 1998. The search for ancient Helike, 1988-1995: Geologicall, Sonar and Bore hole Studies. In: Katsonopoulou, D., Soter, S., Scilardi, D., (Eds.) Ancient Helike and Aigialeia: Proceedings of the Second International Conference, Aigion, December 1995, 67-116.
WELLS, D.L. 7 COPPERSMITH, J.K., 1994. New Empirical Relationships among Magnitude, Rupture Length, Rupture Width, Rupture Area and Surface Displacement, Bull. Seism. Soc. Am., 84, p.974-1002.
YEATS, S.R., SIEH, Κ., ALLEN R. C, 1997. The Geology of Earthquakes. Oxford Univ. Press. New York. 568pp.
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