Simplified layout of mutual arrangement of SPS elements and epicenter of the earthquake: O is the nuclear power plant; A, D, B … are the seismic stations; H is the epicenter of the earthquake, r = OA is the distance from the NPP to the seismic station; S = OH is the distance from NPP to the epicenter of the earthquake; AH is the distance from the epicenter to the seismic station.
Part of: Galiev II, Chernyaev AN, Bibik SV (2018) Development of seismic protection system for design extension conditions. Nuclear Energy and Technology 4(1): 43-50. https://doi.org/10.3897/nucet.4.29853