Industry Experience/Seismic
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Seismic — Industry Experience
Seismic events at nuclear power plants have been documented across a range of earthquake magnitudes and plant responses, from minor ground motion events that triggered seismic instrumentation without plant impact to severe earthquakes that affected multiple safety systems, including the 2011 Tohoku earthquake and tsunami. The operating experience record covers plant responses, post-earthquake inspections, and the evolution of seismic mitigation practices.
For the hazard description and assessment methodology, see Seismic.
MORE INFO COMING SOON — This page is under active development. Detailed content will be available in an upcoming update to the External Hazards Knowledge System.
EPRI technical point of contact: Chris Rochon (CRochon@epri.com)
Date last reviewed: 2026-05-27