Seismic hazard evaluation for the Portsmouth Gaseous Diffusion Plant, Portsmouth, Ohio

Technical Report · Mon Jul 01 04:00:00 EDT 1991

OSTI ID:5431003

This study presents the results of an investigation of seismic hazard at the site of the Portsmouth Gaseous Diffusion Plant. Results from two separate seismic hazard analyses are presented here. The EPRI/SOG analysis uses the input data and methodology developed by the Electric Power Research Institute, under the sponsorship of several electric utilities, for the evaluation of seismic hazard in the central and eastern United States. The LLNL analysis uses the input data and methodology developed by the Lawrence Livermore National Laboratory for the Nuclear Regulatory Commission. Both the EPRI/SOG and LLNL studies characterize earth-science uncertainty on the causes and characteristics of earthquakes in the central and eastern United States. This is accomplished by considering multiple hypotheses on the locations and parameters of seismic source zones and by considering multiple attenuation functions for the prediction of ground shaking given earthquake size and location. The seismic-hazard calculations are performed for all hypotheses. Combining the results from each hypothesis with the weight associated to that hypothesis, one obtains an overall representation of the seismic hazard at Portsmouth and its uncertainty. Combining the EPRI/SOG and LLNL results with equal weights -- while considering their respective uncertainties -- provides another set of seismic-hazard results. 35 refs., 107 figs., l22 tabs.

• Research Organization: Oak Ridge K-25 Site, TN (United States); Risk Engineering, Inc., Golden, CO (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OT21400
• OSTI ID: 5431003
• Report Number(s): K/GDP/SAR/SUB-2; ON: DE91015997
• Country of Publication: United States
• Language: English

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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
58 GEOSCIENCES
580000 -- Geosciences
EARTHQUAKES
GASEOUS DIFFUSION PLANTS
GEOLOGY
GROUND MOTION
HAZARDS
INDUSTRIAL PLANTS
ISOTOPE SEPARATION PLANTS
MOTION
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
PORTSMOUTH GASEOUS DIFFUSION PLANT
RISK ASSESSMENT
ROCKS
SAFETY
SEISMIC EVENTS
SEISMICITY
SEISMOLOGY
SITE CHARACTERIZATION
SOILS
TECTONICS
US DOE
US ERDA
US ORGANIZATIONS