Abstract
The Arab countries cover a large portion of the African and Arabian plates, a region characterized by seismic activity along complex continental collision zones, active seafloor spreading, rifting, and intraplate earthquakes. Establishing a standardized regional seismic network in these countries, then, is of great importance. Considerable effort of some Arab countries and UNESCO under project PAMERAR is under way to achieve this goal. A design for the spatial distribution of a regional seismic network in the area, based on a D-optimal planning criterion, is proposed in this paper. The method, which involves optimizing the geographical locations of stations, is based on the probability of earthquake occurrence at a given point in the seismic region, travel times of seismic waves, and minimization of the ellipsoid volume of earthquake location errors.
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