Seismic Hazard Assessment
Detailed seismic hazard
study is accomplished using both probabilistic and deterministic methods
incorporating the recently gained knowledge on the definition of seismic
sources, seismicity models, attenuation of strong ground motion parameters
and soil conditions.
hazard is based on the expected values of the parameters of the seismic
intensity (macroseismic intensity, peak ground and spectral values etc.)
for various mean return periods. Parametric analysis of the various input
parameters are performed in order to examine their influence on the final
output. Both time dependent and time independent seismicity models will be
applied. Using the available observations of the macroseismic data bank
the results of the probabilistic hazard assessment (in terms of
macroseismic intensities) are compared with the hazard analysis based on
the observed data.
Deterministic and stochastic seismic hazard assessment are be performed
using the seismological parameters of the main faults in the broader area.
For this purpose - after necessary validation - forward modeling will be
performed using properties of the seismic source, propagation path and
site conditions. The results of all the aforementioned methods having
been applied are compared, similarities and/or differences are examined
before their use as input motion to seismic risk assessment at the Test
Site and implicitly for the whole region and the affected major
Metropolitan center located in the vicinity.