Design for Earthquakes and other Natural Phenomena

NRC regulations require that nuclear power plants be designed to withstand the effects of natural phenomena such as earthquakes, tornadoes, hurricanes, floods, tsunami, and seiches without loss of capability to perform their safety functions. Siting criteria are specified in 10 CFR 100. Natural phenomena and earthquake design requirements are specified in 10 CFR 50 Appendix A (General Design Criteria), Criterion 2 -- Design bases for protection against natural phenomena, and Appendix S (Earthquake Engineering Criteria for Nuclear Power Plants).

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