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Seismic Safety Margins Research Program: Phase II program plan (FY 83-FY 84)

Description: The Seismic Safety Margins Research Program (SSMRP) is an NRC-funded, multiyear program conducted by Lawrence Livermore National Laboratory (LLNL). Its goal is to develop a complete, fully coupled analysis procedure (including methods and computer codes) for estimating the risk of an earthquake-caused radioactive release from a commercial nuclear power plant. The analysis procedure is based upon a state-of-the-art evaluation of the current seismic analysis and design process and explicitly incl… more
Date: August 2, 1982
Creator: Bohn, M. P.; Bernreuter, D. L.; Cover, L. E.; Johnson, J. J.; Shieh, L. C.; Shukla, S. N. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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NRC Seismic Design Margins Program Plan

Description: Recent studies estimate that seismically induced core melt comes mainly from earthquakes in the peak ground acceleration range from 2 to 4 times the safe shutdown earthquake (SSE) acceleration used in plant design. However, from the licensing perspective of the US Nuclear Regulatory Commission, there is a continuing need for consideration of the inherent quantitative seismic margins because of, among other things, the changing perceptions of the seismic hazard. This paper discusses a Seismic De… more
Date: August 1, 1985
Creator: Cummings, G. E.; Johnson, J. J. & Budnitz, R. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Double Difference Earthquake Locations at the Salton Sea Geothermal Reservoir

Description: The purpose of this paper is to report on processing of raw waveform data from 4547 events recorded at 12 stations between 2001 and 2005 by the Salton Sea Geothermal Field (SSGF) seismic network. We identified a central region of the network where vertically elongated distributions of hypocenters have previously been located from regional network analysis. We process the data from the local network by first autopicking first P and S arrivals; second, improving these with hand picks when necessa… more
Date: August 8, 2007
Creator: Boyle, K L; Hutchings, L J; Bonner, B P; Foxall, W & Kasameyer, P W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Site-Specific Soil Design Basis Earthquake (DBE) Parameters for the Integrated Waste Treatment Unit (IWTU)

Description: Horizontal and vertical PC 3 (2,500 yr) Soil Design Basis Earthquake (DBE) 5% damped spectra, corresponding time histories, and strain-compatible soil properties were developed for the Integrated Waste Treatment Unit (IWTU). The IWTU is located at the Idaho Nuclear Technology and Engineering Center (INTEC) at the Idaho National Laboratory (INL). Mean and 84th percentile horizontal DBE spectra derived from site-specific site response analyses were evaluated for the IWTU. The horizontal and verti… more
Date: August 1, 2008
Creator: Payne, Suzette
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Data Archived for Events in the Caucasus for the CauSINCollaboration Project

Description: The Causin project is a joint effort between the countries in the Caucasus region to develop a Probabilistic Seismic Hazard Analysis. To that end, we have compiled a database of all available network data in the region. The information contained in the database is from four countries: Armenia, Georgia, Azerbaijan, and Turkey and from the Incorporated Research Institutions for Seismology (IRIS). Table 1 lists the networks from which data were obtained. Figure 1 shows the locations of stations, a… more
Date: August 17, 2007
Creator: Godoladze, T; Hunt, D; Aliyev, F; Arakelyan, A; Kalafat, D; Javakhishvil, Z et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Energy and Technology Review, August 1984

Description: Three articles are presented. Article 1, earthquake safety at LLNL, discusses the intensive program to strengthen Laboratory structures, utilities and work stations, and to reduce personal risks undertaken at the Lab following the January 1980 earthquakes. An investigatin of the physiographic and seismologic setting of the LLNL site is discussed in article 2, geology of the Livermore Valley. Article 3 discusses monitoring groundwater quality at site 300. This system was designed to determine wh… more
Date: August 1, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Communication of emergency public warnings: A social science perspective and state-of-the-art assessment

Description: More than 200 studies of warning systems and warning response were reviewed for this social science perspective and state-of-the-art assessment of communication of emergency public warnings. The major findings are as follows. First, variations in the nature and content of warnings have a large impact on whether or not the public heeds the warning. Relevant factors include the warning source; warning channel; the consistency, credibility, accuracy, and understandability of the message; and the w… more
Date: August 1, 1990
Creator: Mileti, D.S. (Colorado State Univ., Fort Collins, CO (USA)) & Sorensen, J.H. (Oak Ridge National Lab., TN (USA))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Earthquake recurrence rate estimates for eastern Washington and the Hanford Site

Description: The historical and instrumental records of earthquakes were used to estimate earthquake recurrence rates for input to a new seismic hazard analysis at the Hanford Site in eastern Washington. Two areas were evaluated, the eastern Washington region and the smaller Yakima Fold Belt, in which the Hanford Site is located. The completeness of a catalog of earthquakes was evaluated for earthquakes with Modified Mercalli Intensity (MMI) IV through VII. Only one MMI VII earthquake was reported in the la… more
Date: August 1, 1989
Creator: Rohay, A.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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US Department of Energy natural phenomena design/evaluation guidelines/lessons learned

Description: In the spring of 1988, DOE Order 6430.1A, General Design Criteria (1), was issued for use. This document references UCRL-15910, Design and Evaluation Guidelines for DOE Facilities Subjected to Natural Phenomena Hazards (2), which is to be used as the basis for the design and evaluation of new and existing facilities to natural phenomena loading. Rather than use the historical deterministic methods for computing structural and component loading from potential natural phenomena, UCRL-15910 incorp… more
Date: August 1, 1991
Creator: Conrads, T. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Preliminary Catalog of Earthquakes in Northern Imperial Valley, California, January 1, 1977--March 31, 1977

Description: Seismic monitoring of the northern section of the Imperial Valley region in Southern California has been underway since 1973, in order to study in detail the relationship between geothermal areas and earthquakes. A description of the 22-station network and a list of preliminary data on earthquakes recorded by the network from January 1977 through March 1977 are presented.
Date: August 3, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Seismic risk assessment as applied to the Zion Nuclear Generating Station

Description: To assist the US Nuclear Regulatory Commission (NRC) in its licensing and evaluation role, the NRC funded the Seismic Safety Margins Research Program (SSMRP) at Lawrence Livermore National Laboratory (LLNL) with the goal of developing tools and data bases to evaluate the risk of earthquake caused radioactive release from a commercial nuclear power plant. This paper describes the SSMRP risk assessment methodology and the results generated by applying this methodology to the Zion Nuclear Generati… more
Date: August 1, 1984
Creator: Wells, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A summary of ground motion effects at SLAC (Stanford Linear Accelerator Center) resulting from the Oct 17th 1989 earthquake

Description: Ground motions resulting from the October 17th 1989 (Loma Prieta) earthquake are described and can be correlated with some geologic features of the SLAC site. Recent deformations of the linac are also related to slow motions observed over the past 20 years. Measured characteristics of the earthquake are listed. Some effects on machine components and detectors are noted. 18 refs., 16 figs.
Date: August 1, 1990
Creator: Ruland, R. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effects of a major earthquake on the PEP housing, structures, and utilities

Description: The PEP tunnel, above-ground structures, and utility structures have been designed to withstand a major earthquake. This means they will experience minor or moderate damage in an earthquake which will cause widespread devastation in the surrounding region. The earthquake on October 17, 1989, which was not very severe locally, caused no damage to the PEP tunnel, buildings, or utilities. There was apparently some permanent displacement of the PEP tunnel. The PEP ring magnets moved enough to requi… more
Date: August 1, 1990
Creator: Weidner, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Systematic Evaluation Program (SEP) at Rocky Flats Plant: An overview of practical management issues for evaluation of natural phenomena hazards

Description: Many of the buildings at the Rocky Flats Plant were designed and built before modern standards were developed, including standards for protection against extreme natural phenomenon such as tornadoes, earthquakes, and floods. The purpose of the SEP is to establish an integrated approach to assessing the design adequacy of specific high and moderate hazard Rocky Flats facilities from a safety perspective and to establish a basis for defining any needed facility improvements. The SEP is to be carr… more
Date: August 1, 1993
Creator: Badwan, F. M. & Herring, K. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Seismological investigation of earthquakes in the New Madrid Seismic Zone. Final report, September 1986--December 1992

Description: Earthquake activity in the New Madrid Seismic Zone had been monitored by regional seismic networks since 1975. During this time period, over 3,700 earthquakes have been located within the region bounded by latitudes 35{degrees}--39{degrees}N and longitudes 87{degrees}--92{degrees}W. Most of these earthquakes occur within a 1.5{degrees} x 2{degrees} zone centered on the Missouri Bootheel. Source parameters of larger earthquakes in the zone and in eastern North America are determined using surfac… more
Date: August 1, 1993
Creator: Herrmann, R. B. & Nguyen, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Site-specific earthquake response analysis for Paducah Gaseous Diffusion Plant, Paducah, Kentucky. Final report

Description: The Paducah Gaseous Diffusion Plant (PGDP), owned by the US Department of Energy (DOE) and operated under contract by Martin Marietta Energy systems, Inc., is located southwest of Paducah, Kentucky. An aerial photograph and an oblique sketch of the plant are shown in Figures 1 and 2, respectively. The fenced portion of the plant consists of 748 acres. This plant was constructed in the 1950`s and is one of only two gaseous diffusion plants in operation in the United States; the other is located … more
Date: August 1, 1993
Creator: Sykora, D. W. & Davis, J. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Overview of the relations earthquake source parameters and the specification of strong ground motion for design purposes

Description: One of the most important steps in the seismic design process is the specification of the appropriate ground motion to be input into the design analysis. From the point-of-view of engineering design analysis, the important parameters are peak ground acceleration, spectral shape and peak spectral levels. In a few cases, ground displacement is a useful parameter. The earthquake is usually specified by giving its magnitude and either the epicentral distance or the distance of the closest point on … more
Date: August 1, 1977
Creator: Bernreuter, D. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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ROCK DEFORMATION 2010 GORDON RESEARCH CONFERENCE, AUGUST 8-13, 2010

Description: Creep in the crust and mantle is commonly considered a steady-state process. This view prevails despite the fact that earthquakes do not represent steady-state and at the base of the seismogenic zone, for example, the stresses that drive creep must vary with the earthquake cycle. The contribution of transient versus steady-state behavior is not easy to determine from naturally-deformed brittle or plastic rocks and our view of steady-state depends on whether we consider geological or shorter tim… more
Date: August 13, 2010
Creator: Prior, David
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Review of seismicity and ground motion studies related to development of seismic design at SRS

Description: The NRC response spectra developed in Reg. Guide 1.60 is being used in the studies related to restarting of the existing Savannah River Site (SRS) reactors. Because it envelopes all the other site specific spectra which have been developed for SRS, it provides significant conservatism in the design and analysis of the reactor systems for ground motions of this value or with these probability levels. This spectral shape is also the shape used for the design of the recently licensed Vogtle Nuclea… more
Date: August 1, 1992
Creator: Stephenson, D. E. & Acree, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Human reliability analysis for In-Tank Precipitation alignment and startup of emergency purge ventilation equipment. Revision 1

Description: This report documents the methodology used for calculating the human error probability for establishing air based ventilation using emergency purge ventilation equipment on In-Tank Precipitation (ITP) processing tanks 48 and 49 after a failure of the nitrogen purge system following a seismic event. The analyses were performed according to THERP (Technique for Human Error Rate Prediction). The calculated human error probabilities are provided as input to the Fault Tree Analysis for the ITP Nitro… more
Date: August 1, 1993
Creator: Olsen, L. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coolant water transient in K Reactor following line rupture

Description: This investigation is the second study of short period flow decay in the Hanford reactors. The first study was made on the D-Reactor. As in the analysis for D-Reactor quantitative analyses were made for ruptures that might result from sabotage. A visual inspection of the entire process water piping system was also made to check for any glaring deficiencies with respect to earthquake resistance. A brief discussion of the earthquake resistance of the system is also included in this report.
Date: August 27, 1958
Creator: Roberson, J. A. & Jones, S. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coolant backup design study basis and objective

Description: Preliminary studies have, in general, indicated the need for modifications and improvements to the reactor last ditch coolants systems in order to provide adequate safety of operation at power levels programmed for the future. These studies have indicated the need for improved reliability as well as increased capacity for the last ditch coolant systems. A design study is being prepared by Reactor Modification Design to define the scope of the modifications required to provide adequate last ditc… more
Date: August 31, 1960
Creator: Schack, M. H. & Tupper, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Test of a Strong Ground Motion Prediction Methodology for the 7 September 1999, Mw=6.0 Athens Earthquake

Description: We test a methodology to predict the range of ground-motion hazard for a fixed magnitude earthquake along a specific fault or within a specific source volume, and we demonstrate how to incorporate this into probabilistic seismic hazard analyses (PSHA). We modeled ground motion with empirical Green's functions. We tested our methodology with the 7 September 1999, Mw=6.0 Athens earthquake, we: (1) developed constraints on rupture parameters based on prior knowledge of earthquake rupture processes… more
Date: August 6, 2004
Creator: Hutchings, Lawrence; Ioannidou, Eleni; Voulgaris, Nicholas; Kalogeras, Ioannis; Savy, Jean; Foxall, William et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Long-term monitoring of ULF electromagnetic fields at Parkfield, CA

Description: Electric and magnetic fields in the (10{sup -4}-1.0) Hz band were monitored at two sites adjacent to the San Andreas Fault near Parkfield and Hollister, California from 1995 to present. A data window [2002-2005], enclosing the September 28, 2004 M6 Parkfield earthquake, was analyzed to determine if anomalous electric or magnetic fields, or changes in ground conductivity, occurred before the earthquake. The data were edited, removing intervals of instrument malfunction leaving 875 days in the fo… more
Date: August 1, 2009
Creator: Kappler, K. N.; Morrison, H. F. & Egbert, G. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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