S-WAVE SPECTRAL ANALYSIS AND ESTIMATION OF SPECTRAL PARAMETERS IN NORTHWESTERN GREECE

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Publiée : Ιουλ 27, 2016
DOI : https://doi.org/10.12681/bgsg.11829
O. Stavroulopoulou
University of Patras, Faculty of Geology, Seismological Laboratory
E. Sokos
University of Patras, Faculty of Geology, Seismological Laboratory
G.A. Tselentis
University of Patras, Faculty of Geology, Seismological Laboratory
Résumé

During a 12-month period (August 1998 - June 1999), a dense microseismic network of 44 portable seismographs, was installed in Epirus - Northwestern Greece, by the Seismological Laboratory, of the University of Patras and recorded 1368 earthquakes. We selected a subset of 200 well recorded events, with duration magnitude ranging from 1.61 to 2.92 and focal depths ranging from a few hundred meters to 35km; the majority was in the 0-10km range. This study uses this high quality dataset to (i)calculate the earthquake spectra and source parameters; (ii) perform linear regression between Seismic Moment (M0) and the source parameters Source Radius (r), Stress Drop (Δσ) and Displacement (s); (iii) correlate source parameter’s distribution with the tectonics of the area. Finally, we compare the derived empirical laws with similar studies.

Article Details
  • Rubrique
  • Geophysics and Seismology
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Références
Avramidis, P., Zelilidis, A. and Kontopoulos, N., 2000. Thrust dissection control of deep-water
clastic dispersal patterns in the Klematia - Paramythia foreland basin, western Greece, Geol.
Mag., 137(6), 667-685.
Boore, D.M., 1983. Stochastic simulation of high-frequency ground motions based on seismological
models of the radiated spectra, Bulletin of the Seismological Society of America, 73(6A),
-1894.
Brune, J.N., 1968. Seismic moment, seismicity, and the rate of slip along major fault zones, J.
Geophys. Res., 73, 777-789.
Brune, J.N., 1970. Tectonic stress and the spectra of seismic shear waves from earthquakes, J.
Geophys. Res., 75, 4997-5009.
Brune, J.N., 1971. Corrections, J. Geophys. Res., 76, 5002.
Brune, J.N., Fletcher, J.B., Vernon, F.L., Haar, L., Hanks, T.C. and Berger, J., 1986. Low stressdrop
earthquakes in the light of new data from the Anza, California telemetererd digital array,
Earthquake Source Mechanics, AGU Monograph, 37, 237-245.
Burton, P.W., Melis, S.N. and Brooks, M., 1995. Coseismic crustal deformation on a fault zone
defined by microseismicity in the Pavliani area, central Greece, Geophys. J. Int., 123, 16-40.
Doutsos, T., Kontopoulos, N. and Fridas, D., 1987. Neotectonic evolution of northwestern continental
Greece, Basin Res. 1, 177-190.
Hatzfeld, D., Kassaras, L., Panagiotopoulos, D., Amorese, D., Makropoulos, K., Karakaisis, G. and
Coutand, O., 1995. Microseismicity and strain pattern in northwestern Greece, Tectonics, 14,
-785.
Institute for Geology Subsurface Research of Greece and Institute Francais de Petrole (IGSR and
IFP), 1966. Etude geologique de l’Epire, Paris, Technip, 306 pp.
Kanamori, H. and Anderson, D.L., 1975. Theoretical bases of some empirical relations in
seismology, Bull. Seism. Soc. Am., 65, 1073-1095.
Keilis-Borok, V.I., 1959. On the estimation oft he displacement in an earthquake source and of
source dimencion, Ann. Geofis., 12, 205-214.
King, G., Tselentis, A., Gomberg, J., Molnar, P., Roecker, S., Sinvhal, H., Soufleris, C. and Stock,
J., 1983. Microearthquake seismicity and active tectonics of northwestern Greece, Earth
Planet Sc. Lett., 66, 279-288.
King, G., Sturdy, D. and Whitney, J., 1993. The landscape geometry and active tectonics of the
northwest Greece, Geol. Soc. Am. Bull., 105, 137-161.
Kiratzi, A.A., Karakaisis, G.F., Papadimitriou, E.E. and Papazachos, B.C., 1985. Seismic sourceparameter
relations for earthquakes in Greece, Pageoph., 123, 28-41.
Kiratzi, A., Papadimitriou, E. and Papazachos, B.C., 1987. A microearthquake survey in the Steno
dam site in northwestern Greece, Ann. Geophys., 592, 161-166.
Kumar Arjun, Kumar Ashwani, Mittal Himanshu, Kumar Ashok, Bhardwaj Rakhi, 2012. Software
to Estimate Earthquake Spectral and Source Parameters, International Journal of
Geosciences, 3, 1142-1149.
Martakis, N., 2003. Passive seismic tomography survey in Epirus, Ph.D. thesis, University of Patras
- Faculty of Geology and Geophysics - Seismological Laboratory, 116-126, 145, 189 (In
Greek).
Melis, S.N., 1992. Earthquake hazard and crustal deformation in central Greece, Phd Thesis,
U.W.C.C., University.
Melis, S.N., Burton, P.W. and Brooks, M., 1995. Coseismic crustal deformation from
microseismicity in the Patras area, western Greece, Geophys. J. Int., 122, 815-836.
Mercier, J., Bousquet, B., Delibasis, N., Drakopoulos, I., Keraurden, B., Lemell, F. and Sorel, D.,
Deformations en compression dans le quartinaire des ravages Ioniens. Donnes
neotectoniques et seismiques, C. R. Acad. Sci., Paris, 275, 2307-2310.
Papazachos, C. and Kiratzi, A., 1996. A detailed study of the active crustal deformation in the
Aegean and surrounding area, Tectonophysics, 253, 129-153.
Roumelioti Z., Kiratzi A., Theodoulidis N. and Papaioannou C., 2002. S-wave spectral analysis of the
Kozani-Grevena (NW Greece) aftershock sequence, Journal of Seismology, 6, 219-236.
Stavroulopoulou, O., Sokos, E., Martakis, N. and Tselentis, G.-A., 2013. Earthquake relocation for
Northwestern Greece using 3D crustal model; method comparison and seismotectonic
interpretation, Bulletin of the Geological Society of Greece, XLVII, Proceedings of the 13th
International Congress, Chania, Sept. 2013.
Taymaz, T., Jackson, J.A. and McKenzie, D., 1991. Active tectonics of the north and central Aegean
Sea, Geophys. J. Int., 106, 433-490.
Tselentis, G.-A., Sokos, E., Martakis, N. and Serpetsidaki, A., 2006. Seismicity and Seismotectonics
in Epirus, Western Greece: Results from a Microearthquake Survey, Bull. Seism. Soc. Am.,
(5), 1706-1717.
Underhill, J.R., 1989. Late Cenozoic deformation of the Hellenide foreland, western Greece, Geol.
Soc. Am. Bull., 101, 613-634.
Waters, D., 1994. The tectonic evolution of Epirus, Northwest Greece, Ph.D. thesis, University of
Cambridge, Cambridge, 248 pp.
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