PALAEOSEISMOLOGICAL ANALYSIS OF THE EAST GIOUCHTAS FAULT, HERAKLION BASIN, CRETE (PRELIMENARY RESULTS)

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Published: Jul 27, 2016
DOI: https://doi.org/10.12681/bgsg.11756
Keywords:
active tectonics seismic hazard young surface scarp seismic history
V. Zygouri
University of Patras, Department of Geology
I. Koukouvelas
University of Patras, Department of Geology
A. Ganas
Institute of Geodynamics, National Observatory of Athens
Abstract

A paleoseismological analysis has been performed at the East Giouchtas Fault. This fault dips to the east and represents a pure normal fault. The East Giouchtas Fault forms an intrabasinal high in the Heraklion basin with its conjugate fault the West Giouchtas Fault. A natural surface has been prepared and logged in detail in order to detect the most significant parameters related to the ground shaking impact on the area. Investigating past earthquakes characteristics attributed to the East Giouchtas Fault and through sample dating we conclude that the studied fault is related to at least four strong events of 6.4 magnitude. The fault is also characterized by 20-40 cm tectonosedimentatry displacements and slip rates of 0.25 mm/yr. Thus, the proximity of the fault to the highly populated Heraklion city and Minoan Knossos monument urges the need for an adequate hazard assessment of the area.

Article Details
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  • Geophysics and Seismology
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References
Allen, C.R., 1986. Seismological and paleoseismological techniques of research in active tectonics. In: Wallace, R.E., (Panel Chairman), ed., Active Tectonics, National Academy Press, Washington, 148-154.
Caputo, R., Helly, B., Pavlides, S. and Papadopoulos, G., 2004. Paleoseismological investigation of the Tyrnavos fault (Thessaly, Central Greece), Tectonophysics, 394, 1-20.
Caputo, R., Monaco, C. and Tortorici, L., 2006. Multiseismic cycle deformation rates from Holocene normal fault scarps on Crete (Greece), Terra Nova, 18, 181-190.
Chatzipetros, A. and Pavlides, S., 1994. Late Quaternary fault scarps and paleoseismology of the active basin of Mygdonia, Thessaloniki seismogenic area, Northern Greece. In: Proc. Workshop on Paleoseismology (Scwartz and Yeats, eds., CA. USA), 35-37.
Collier, R.E.L., Pantosti, D., D'Addezio, G., De Martini, P.M., Masana, E. and Sakellariou, D., 1998. Paleoseismicity of the 1981 Corinth earthquake fault: seismic contribution to extensional strain in central Greece and implications for seismic hazard, J. Geophys. Res., 103, 30001-30019.
Detorakis, T., 1990. History of Crete. Heraklion, 550 (in Greek).
Doutsos, T. and Kokkalas, S., 2001. Stress and deformation patterns in the Aegean region, J. Struct. Geol., 23, 455-472.
Fassoulas, C., 2001. The tectonic development of a Neogene basin at the leading edge of the active European margin: The Heraklion basin, Crete, Greece, J. Geodyn., 31, 49-70.
Ganas, A. and Parsons, T., 2009. Three-dimensional model of Hellenic Arc deformation and origin of the Cretan uplift, J. Geophys. Res., 114, doi: 10.1029/2008JB005599.
Kokinou, E., Skilodimou, H.D., Bathrellos, G.D., Antonarakou, A. and Kamberis, E., 2015. Morphotectonic analysis, structural evolution/pattern of a contractional ridge: Giouchtas Mt., Central Crete, Greece, J. Earth Syst. Sci., 124, 587-602.
Kokkalas, S., Xypolias, P., Koukouvelas, I.K. and Doutsos, T., 2006. Post-Collisional Contractional and Extensional Deformation in the Aegean Region. In: Post-Collisional Tectonics and Magmatism in the Mediterranean region and Asia. In: Dilek, Y. and Pavlides, S., eds., Geol. Soc. Am. Special Paper, 409, 97-123.
Kokkalas, S., Pavlides, S., Koukouvelas, I., Ganas, A. and Stamatopoulos, L., 2007. Paleoseismicity of the Kaparelli fault (eastern Corinth Gulf): evidence for earthquake recurrence and fault behavior, Boll. Soc. Geol. It. (Ital. J. Geosci.), 126, 387-395.
Koukouvelas, I.K., Katsonopoulou, D., Soter, S. and Xypolias, P., 2005. Slip rates on the Helike Fault, Gulf of Corinth, Greece: new evidence from geoarchaeology, Terra Nova, 17, 158-164.
McCalpin, J.P., 1996. Paleoseismology. Academic Press, San Diego, CA p. 588.
McCalpin, J.P., 2009. Paleoseismology. Academic Press, San Diego, CA p. 613.
Mouslopoulou, V., Moraetis, D. and Fassoulas, C., 2011. Identifying past earthquakes on carbonate faults: Advances and limitations of the “Rare Earth Element” method based on analysis of the Spili Fault, Crete, Greece, Earth. Planet Sci. Lett., 309,45-55.
Pantosti, D., De Martini, P., Koukouvelas, I., Stamatopoulos, L., Palyvos, N., Pucci, S., Lemeille, F. and Pavlides, S., 2004. Palaeoseismological investigations of the Aigion Fault (Gulf of Corinth, Greece), C. R. Geoscience, 336, 335-342.
Papadopoulos, G.A., 2011. A seismic history of Crete. The Hellenic Arc and Trench, Ocelotos publications, Athens.
Pavlides, S. and Caputo, R., 2004. Magnitude versus faults' surface parameters: Quantitative relationships from the Aegean Region, Tectonophysics, 380, 159-188.
Pavlides, S., Zhang, P. and Pantosti, D., 1999. Earthquakes, active faulting, and paleo - seismological studies for the reconstruction of seismic history of faults, Tectonophysics, 308 vii-x.
Pavlides, S., Koukouvelas, I., Kokkalas, S., Stamatopoulos, L., Keramydas, D. and Tsodoulos, I., 2004. Late Holocene evolution of the East Eliki fault, Gulf of Corinth (Central Greece), Quatern. Int., 115-116, 139-154.
Sakellarakis, Y., 1994. The temple of Anemospilia, Archaiologia, 53, 24-28 (in Greek).
Sakellarakis, Y., 1997. Excavating the past, Ammos publications, Athens (in Greek).
Solonenko, V.P., 1973. Palaeoseismogeology, Earth Physics, 9, Izv. AN. SSSR, 3-16.
Sieh, K.E., 1978. Prehistoric large earthquakes produced by slip on the San Andreas fault at Pallet Creek, California, J. Geophys. Res., 83, 3907-3939.
Vassilakis, E., 2006. Study of the tectonic structure of Messara Basin, Central Crete with the aid of remote sensing techniques and geographic information systems, PhD Thesis, Athens, (in Greek).
Wallace, R.E., 1981. Active faults, Paleoseismology, and earthquake hazards in the Western United States. Earthquake prediction: an international review, 209-216.
Zygouri, V., Koukouvelas, I., Kokkalas, S., Xypolias, P. and Papadopoulos, G.A., 2015. The Nisi Fault as a key structure for understanding the active deformation of the NW Peloponnese, Greece, Geomorphology, 237, 142-156.
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