Elsevier

Tectonophysics

Volume 217, Issues 3–4, 30 January 1993, Pages 243-253
Tectonophysics

Estimation of attenuation structure and local earthquake magnitude based on acceleration records in Greece

https://doi.org/10.1016/0040-1951(93)90008-8Get rights and content

Abstract

Strong-motion accelerograms are used for the estimation of attenuation coefficient in the upper crust in Greece, on the assumption that direct S-waves are responsible for the strong near-source motion. This coefficient was then used to derive a calibration formula for the estimation of local earthquake magnitude for epicentral distances Δ < 130 km and 4.0 ≤ ML ≤ 6.1. Qs values are calculated by the spectral decay of the log spectrum of the accelerograms. The resulting values exhibit the high attenuation of seismic waves in Greece and indicate the existence of a highly attenuative surface “sedimentary” layer which strongly controls the total wave attenuation.

References (45)

  • T. Hashida et al.

    Three-dimensional seismic attenuation structure beneath the Aegean region and its tectonic implication

    Tectono-physics

    (1988)
  • B.C. Papazachos

    Seismicity of the Aegean and surrounding area

    Tectonophysics

    (1990)
  • H.J. Al-Shukri et al.

    Attenuation in the New Madrid seismic zone

    Bull. Seismol. Soc. Am.

    (1990)
  • H.J. Al-Shukri et al.

    Attenuation of seismic waves in the New Madrid seismic zone

    Seismol. Res. Lett.

    (1988)
  • J.G. Anderson et al.

    A model for the shape of the Fourier amplitude spectrum of acceleration at high frequencies

    Bull. Seismol. Soc. Am.

    (1984)
  • M. Basili

    Data aquisition and processing in strong-motion seismology

  • J.A. Blume

    On instrumental versus effective acceleration, and design coefficients

  • N.J. Brune

    Tectonic stress and the spectra of seismic shear waves from earthquakes

    J. Geophys. Res.

    (1970)
  • P.E. Comninakis

    A contribution to the investigation of the seismicity of the area of Greece

  • V.F. Cormier

    The effect of attenuation of seismic body waves

    Bull. Seismol. Soc. Am.

    (1982)
  • A. Dahle et al.

    Attenuation models inferred from intraplate earthquake recordings

    Earthquake Eng. Struct. Dyn.

    (1990)
  • A. Frankel

    Mechanisms of seismic attenuation in the crust: Scattering and anelasticity in New York State, South Africa, and Southern California

    J. Geophys. Res.

    (1991)
  • B. Gutenberg et al.

    Earthquake magnitude, intensity, energy and acceleration

    Bull. Seismol. Soc. Am.

    (1942)
  • T.C. Hanks

    Fmax Bull. Seismol. Soc. Am.

    (1982)
  • T.C. Hanks et al.

    The character of high frequency strong ground motion

    Bull Seismol. Soc. Am.

    (1981)
  • S.E. Hough et al.

    Attenuation near Anza, California

    Bull. Seismol. Soc. Am.

    (1988)
  • H. Kanamori

    Spectrum of short-period core phases in relation to the attenuation in the mantle

    J. Geophys. Res.

    (1967)
  • H. Kanamori et al.

    Determination of local magnitude, ML, from strong motion accelerograms

    Bull. Seismol. Soc. Am.

    (1978)
  • B. Karakostas

    Correlation of seismic activity with geological and geomorphological features in the broader Aegean area

  • S.A. Kovatchev et al.

    Attenuation of S waves in the lithosphere of the Sea of Crete according to OBS observation

    Phys. Earth. Planet. Inter.

    (1991)
  • A. Kiratzi et al.

    Magnitude scales for earthquakes in Greece

    Bull. Seismol. Soc. Am.

    (1984)
  • V. Lee et al.

    MSML computed from strong ground motion accelerograms recorded in Yugoslavia

    Earthquake Eng. Struct. Dyn.

    (1990)
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