Review of earthquake hazard assessments of plant sites at Paducah, Kentucky, and Portsmouth, Ohio
Members of the US Geological Survey staff in Golden, Colorado, have reviewed the submissions of Lawrence Livermore National Laboratory (LLNL) staff and of Risk Engineering, Inc. (REI) (Golden, Colorado) for seismic hazard estimates for Department of Energy facilities at Portsmouth, Ohio, and Paducah, Kentucky. We reviewed the historical seismicity and seismotectonics near the two sites, and general features of the LLNL and EPRI/SOG methodologies used by LLNL and Risk Engineering respectively, and also the separate Risk Engineering methodology used at Paducah. We discussed generic issues that affect the modeling of both sites, and performed alternative calculations to determine sensitivities of seismic hazard results to various assumptions and models in an attempt to assign reasonable bounding values of the hazard. In our studies we find that peak acceleration values of 0.08 g for Portsmouth and 0.32 g for Paducah represent central values of the ground motions obtained at 1000-year return periods. Peak accelerations obtained in the LLNL and Risk Engineering studies have medians near these values (results obtained using the EPRI/SOG methodology appear low at both sites), and we believe that these medians are appropriate values for use in the evaluation of systems, structures, and components for seismic structural integrity and for the seismic design of new and improved systems, structures, and components at Portsmouth and Paducah.
- Research Organization:
- Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States); Geological Survey, Reston, VA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AI05-90OR21929; AC05-76OR00001
- OSTI ID:
- 5516576
- Report Number(s):
- K/GDP/SAR-15; ON: DE92012314
- Country of Publication:
- United States
- Language:
- English
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58 GEOSCIENCES
29 ENERGY PLANNING
POLICY AND ECONOMY
SEISMIC EFFECTS
PROBABILISTIC ESTIMATION
SEISMIC EVENTS
SEISMICITY
HISTORICAL ASPECTS
COMPUTERIZED SIMULATION
EARTHQUAKE FOCI
EARTHQUAKE MAGNITUDE
EARTHQUAKES
GEOLOGY
GROUND MOTION
HAZARDS
MATHEMATICAL MODELS
PADUCAH PLANT
PORTSMOUTH CENTRIFUGE ENRICHMENT PLANT
PORTSMOUTH GASEOUS DIFFUSION PLANT
RISK ASSESSMENT
SEISMIC DETECTION
US GS
CENTRIFUGE ENRICHMENT PLANTS
DETECTION
GASEOUS DIFFUSION PLANTS
INDUSTRIAL PLANTS
ISOTOPE SEPARATION PLANTS
MOTION
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
SIMULATION
US AEC
US DOE
US DOI
US ERDA
US ORGANIZATIONS
540250* - Environment
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580000 - Geosciences
290300 - Energy Planning & Policy- Environment
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