SEISMICITY CRITERIA FOR THE REAL-TIME IDENTIFICATION OF FORESHOCKS IN THE CORINTH GULF

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Published: Jan 1, 2004
DOI: https://doi.org/10.12681/bgsg.16534
K. Orfanogiannaki
Institute of Geodynamics, National Observatory of Athens
G. A. Papadopoulos
Institute of Geodynamics, National Observatory of Athens
Abstract

In the Corinth Gulf foreshock sequences occur as a rule within a time interval no longer than four months before the mainshock. If these precursory phenomena could be detected, then it would be utilized for the prediction of the mainshock. However, frequent swarms also characterize the Gulf of Corinth. Therefore, in a real time evaluation, the discrimination between swarms and foreshock sequences is of crucial importance. In this study we focus on establishing seismicity criteria to achieve such discrimination.

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  • Seismology
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References
Agnew, D.C., and Jones, L.M., 1991. Prediction probabilities from foreshocks, J. Geophys. Res., 96, 11,959- 11,971.
Chen, Y., Liu, J., and Ge, H., 1999. Pattern characteristics of Foreshock Sequences, Pure appi. Geophys., 155, 395-408.
Jones, L.M., 1984. Foreshocks (1966-1980) in the San Andreas system,California, Bull. Seismol. Soc. Amer., 74, 1361-1380.
Jones, L.M., 1985. Foreshocks and time-dependent earthquake hazard assessment in Southern California, Bull. Seismol. Soc. Amer, 75, 1669-1679.
Jones, L.M., and Molnar, P., 1979. Some characteristics of foreshocks and their possible relationship to earthquake prediction and premonitory slip on faults, J. Geophys. Res., 84, 3596-3608.
Ishida, M., and Kanamori, H., 1978. The foreshock activity of the 1971 San Fernando earthquake, California, Bull. Seismol. Soc. Amer, 68, 1265-1279.
Kagan, Y., and Knopoff, L, 1978. Statistical study of the occurrence of shallow earthquakes, Geophys. J. R. astr. Soc, 55, 67-86.
Michael, A.J., and Jones, L.M., 1998. Seismicity alert probabilities at Parkfield California, revisited, Bull. Seismol. Soc. Amer, 88, 117-130.
Molchan, G.M., and Dmitrieva, O.E., 1990. Dynamics of the magnitude-frequency relation for foreshocks, Phys. Earth Planet. Int., 61, 99-112.
Ogata, Y., Utsu, T., and Katsura, K., 1996. Statistical discrimination of foreshocks from other earthquake clusters, Geophys. J. Int., 127, 17-30.
Papadopoulos, G.A., Makropoulos, K.C., and Dedousis, V., 1991. Preqursory variations of the foreshocks fractal dimension in time, international Conference on Earthquake Prediction : state - of- the - art, France, Council of Europe, 92-97.
Papadopoulos, G.A., Drakatos, G., and Plessa, Α., 2000. Foreshock activity as a precursor of strong earthquakes in Corinthos Gulf, Central Greece, Phys. Chem. Earth, 25, 239-245.
Papazachos, B.C., 1973. The time distribution of the reservoir-associated foreshocks and its importance to the prediction of the principal shock, Bull. Seismol. Soc. Amer, 63, 1973-1978.
Papazachos, B.C., 1974. Dependence of the seismic parameter b on the magnitude range, Pure appi. Geophys., 112, 1059-1065.
Papazachos, B.C., 1975. Foreshocks and earthquake prediction, Tectonophysics, 28, 213-226.
Reasenberg, P.A., 1999. Foreshock occurrence before large earthquake. J. Geophys. Res., 104, 4755-4768.
Suyehiro, S., and Sekiya, H., 1972. Foreshocks and earthquake prediction, Tectonophysics, 14, 219-225.
Wong, K.C., and Wyss, M.,1985. Clustering of Foreshocks and Preshocks in the Circum-Aegean region, Earthq. Predict. Res., 3, 121-140.
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