Empirical site response evaluations: Case studies in Israel

Y. Gitterman, Y. Zaslavsky, A. Shapira, V. Shtivelman

Research output: Contribution to journalArticlepeer-review


A closed-loop, time-efficient technique for site effect evaluation for seismic microzonation in urban areas is developed and implemented. It includes the following successive steps: microtremor measurements using a triangular array of three-component seismometers; estimation of the Nakamura horizontal-vertical spectral ratio, calculation of Rayleigh wave dispersion using the Aki spatial correlation method; inversion of the dispersion curve to determine a shear wave velocity model of the shallow subsurface; analytical computation of Rayleigh wave spectral ellipticity and 1-D SH transfer function for this model; and a comparison of empirical and analytical ratios and correction of the model if required. The technique has been tested at several locations in a number of towns near the active Jordan Rift valley. A reasonable agreement is obtained when comparing empirical spectral ratios and analytical transfer functions.

Original languageEnglish
Pages (from-to)447-463
Number of pages17
JournalSoil Dynamics and Earthquake Engineering
Issue number7
StatePublished - Oct 1996
Externally publishedYes


  • Microtremor measurements
  • Resonant frequency
  • Site-effect
  • Spatial correlation
  • Spectral ratio

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Soil Science


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