Hanford Site-Wide Probabilistic Seismic Hazard Analysis

K. Coppersmith,J. Bommer,K. Hanson,Ryan T. Coppersmith,J. Unruh,L. Wolf,R. Youngs,Linda Al Atik,A. Rodriguez-Marek,Gabriel Toro,Valentina Montaldo Falero

Published 2014 in Unknown venue

ABSTRACT

6.0 SSC Database: Earthquake Catalog ............................................................................................. 6.1 6.1 Catalog Region and Parameter Limits .................................................................................. 6.1 6.1.1 Geographic Extent ..................................................................................................... 6.1 6.1.2 Magnitude Cut-Off .................................................................................................... 6.2 6.1.3 Types of Earthquakes Investigated ............................................................................ 6.2 6.1.4 Time Span Covered ................................................................................................... 6.4 6.2 Earthquake Data Sources ..................................................................................................... 6.4 6.2.1 Historical Seismicity ................................................................................................. 6.4 6.2.2 Regional-Scale Catalogs ........................................................................................... 6.5 6.2.3 Continental-Scale Catalogs ....................................................................................... 6.6 6.2.4 Previous Catalog Compilation Efforts ...................................................................... 6.7 6.2.5 Identification of Unique Earthquake Entries ............................................................. 6.7 6.3 Epicentral Locations ............................................................................................................. 6.8 6.4 Focal Depth .......................................................................................................................... 6.12 6.4.1 Routine Location Procedure and Depth Determination ............................................ 6.12 6.4.2 Spatial Variation of Depth Distribution Across Study Region ................................. 6.12 6.5 Magnitude Homogenization ................................................................................................. 6.14 6.5.1 Target Magnitude and Available Magnitudes ........................................................... 6.15 6.5.2 Conversion from MC, MD, and Other Magnitude Scales ........................................... 6.16 6.5.3 Conversion from Macroseismic Intensities ............................................................... 6.25 6.5.4 Treatment of Magnitude Uncertainties in Recurrence Calculations ......................... 6.28 6.5.5 Uniform Moment Magnitude Catalog of E[M] and N* Values ................................ 6.29 6.6 Declustering of the Earthquake Catalogs ............................................................................. 6.33 6.6.1 Alternative Declustering Approaches ....................................................................... 6.33 6.6.2 Application to Hanford PSHA Project Catalog ......................................................... 6.34 6.7 Catalog Completeness .......................................................................................................... 6.36 6.7.1 The Stepp Method ..................................................................................................... 6.36 6.7.2 Probability of Detection in Space and Time ............................................................. 6.37 6.8 References ............................................................................................................................ 6.39

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