Seismic Hazard of Eastern Saudi Arabia
Figure 1. The locations of Dhahran City and suggested
source area are shown.
The purpose of the project: In this project, we
plan to estimate the peak ground acceleration values for the major cities
located through the eastern Saudi Arabia such as Dhahran City. The suggested location, as a source area by M8 algorithm, onto Zagros Fault that is just nearly 380 km NW from the Dhahran City which is the
one of the most populated city in Saudi Arabia.
in probabilistic seismic hazard analysis and expected output:
An earthquake source of
26.56'N/53.58'E in southern Iran that is just 387 km far away from the
Dhahran City of Saudi Arabia (26.15'N/50.09') is suggested by means of
algorithm and announced in unofficial
earthquake analysis site. In this study, we assume suggested area
of source by means of M8 algorithm to determine possible ground
amplification through the Dhahran city (see Figures 1 and 2a).
- Estimation of seismicity (recurrence) parameters for each source:
The data is derived from
the earthquake catalogue query page through the radius of 500km in
regard to location of suggested source area (see Table 1). The data is
going to be used to determine recurrence parameters (see Figure 2b).
Selection of ground motion attenuation models:
Global ground motion relationship is going to be used for estimation
variability between distance and peak ground motion (see Figure 2c).
Quantification of the seismic hazard:
The final product of suggested project will be to estimate acceleration
potential for different probability of excedences.
Figure 2. Basic steps for seismic hazard analysis.
Catalogue (1973-2004, M>4)through the region of source area