Quantitative evaluation of the seismicity in seismogenic sources of the Circum Pacific Rim


G. CH. KORAVOS
T. M. TSAPANOS
P. M. HATZIDIMITRIOU
C. A. PAPAIOANNOU
Résumé

A quantitative measurement of the seismicity is undertaken along the seismogenic sources of the south and central America, as well as of Japan, Taiwan and Philippine islands. The mean return period, Τ , is considered as measure of seismicity. For this purpose the whole process (method of mean value) and the part process (first asymptotic distribution of Gumbel's extreme values) techniques are adopted. The seismicity is evaluated for both shallow and intermediate focal depth shocks which occurred in the examined sources. The a and b values of the magnitude-frequency relationship are estimated for each source. The obtained results show that large welldefine zones of the mean return periods are dominated in the central and south America, while this is not so strong in the areas of Japan, Taiwan and Philippine islands, which probably due to the different tectonic setting of the areas (Tsapanos, 1990).

Article Details
  • Rubrique
  • Seismology
Téléchargements
Les données relatives au téléchargement ne sont pas encore disponibles.
Références
ABE, Κ. (1994). Instrumental magnitudes of historical earthquakes, 1892 to 1898, Bull. Seismol. Soc. Am., 84, 415-425.
BOOMER, J., McQUEEN, C, SALAZAR, W., SCOTT, S. and WOO, G. (1998). A case study of the spatial distribution of seismic hazard (El Salvador), Nat. Hazards, 18, 145-166.
BURTON, RW. (1979). Seismic risk in southern Europe through to India examined using Gumbel's third distribution of extreme values, Geophys. J. R. Astr. Soc, 59, 249-280.
EPSTEIN, B. and LOMNITZ, C. (1966). A model for the occurrence of large earthquakes, Nature, 211, 954-956.
GUMBEL, E.J. (1958). Satistics of extremes, Columbia Univ. Press, N.Y., 375pp.
GUTENBERG , B. and RICHTER, CF. (1944). Frequency of earthquakes in California, Bull. Seismol. Soc. Am., 34, 185-188.
GUTENBERG, B. and RICHTER, CF. (1954). Seismicity of the earth and associated phenomena, Princeton Univ. Press, Princeton, N.Y., 310pp.
HATZIDIMITRIOU, P.M., PAPAZACHOS, B.C. and KARAKAISIS, G.F. (1994). Quantitative seismicity of the Aegean and surrounding area, Proc. XXIV Gen. Assem. ESC, Athens, Greece, 19-24 September 1994, vol. 1, 155-164.
MAKROPOULOS, K.C (1978). The statistics of large earthquakes magnitude and an evaluation of Greek seismicity, Ph.D. Thesis, Univ. of Edinburgh, Edinburgh, 193pp.
MANAKOU, M.V. and TSAPANOS, T.M. (2000). Seismicity and seismic hazard parameters evaluation in the island of Crete and the surrounding area inferred from mixed data files, Tectonophysics, 321, 157-178.
NISHENKO, S.P. (1985). Circum-Pacific seismic potential, 1989-1999, Pageoph, 135, 169-259.
PACHECO, J.F and SYKES, L.R. (1992). Seismic moment catalog of large shallow earthquakes, 1900 to 1989, Bull. Seismol. Soc. Am., 82, 1306-1349.
PAPAIOANNOU, Ch. A. (1984). Attenuation of seismic intensities and seismic hazard assessment in Greece and the surrounding area, Ph.D. Thesis, Univ. of Thessaloniki, Thessaloniki, 200pp. (In Greek with English abstract).
PAPAZACHOS, B.C. (1974). Dependence of the seismic parameter b on the magnitude range, Pageoph, 112, 1059-1065.
PAPAZACHOS, B.C., PPAPADIMITRIOU, E.E., KIRATZI, A.A., PAPAIOANNOU, Ch. A. and KARAKAISIS, G.E. (1987). Probabilities of occurrence of large earthquake in the Aegean and surrounding area during the period 1986-2006, Pageoph, 125, 597-612.
PAPAZACHOS, B.C, PAPADIMITRIOU, E.E, KARAKAISIS, G.F. and PANAGIOTOPOULOS, D.G. (1997). Long-term Earthquake prediction in the circum-Pacific convergent belt, Pageoph, 149, 173-217.
RIKITAKE, Τ (1976). Recurrence of great earthquakes at subduction zones, Tectonophysics, 35, 335-362.
SCHOLZ, CH. (1994). The mechanics of earthquakes and faulting, Cambridge Univ. Press, 439pp.
TSAPANOS, T.M. (1990). b-values of two tectonic parts in the circum-Pacific belt, Pageoph, 134, 229-242.
TSAPANOS, T.M. and BURTON P.W. (1991). Seismic hazard evaluation for specific seismic regions of the world, Tectonophysics, 195, 153-169.
TSAPANOS, T.M. and PAPAZACHOS, B.C. (1998). Geographical and vertical variation of the earth's seismicity, J. Seismology, 2, 183-192.
Articles les plus lus par le même auteur ou la même autrice