Item talk:Q65938

{

 "USGS Publications Warehouse": {
   "schema": {
     "@context": "https://schema.org",
     "@type": "CreativeWork",
     "additionalType": "USGS Numbered Series",
     "name": "A-priori rupture models for Northern California Type-A faults",
     "identifier": [
       {
         "@type": "PropertyValue",
         "propertyID": "USGS Publications Warehouse IndexID",
         "value": "ofr20071437K",
         "url": "https://pubs.usgs.gov/publication/ofr20071437K"
       },
       {
         "@type": "PropertyValue",
         "propertyID": "USGS Publications Warehouse Internal ID",
         "value": 81124
       },
       {
         "@type": "PropertyValue",
         "propertyID": "DOI",
         "value": "10.3133/ofr20071437K",
         "url": "https://doi.org/10.3133/ofr20071437K"
       }
     ],
     "inLanguage": "en",
     "isPartOf": [
       {
         "@type": "CreativeWorkSeries",
         "name": "Open-File Report"
       }
     ],
     "datePublished": "2008",
     "dateModified": "2019-07-17",
     "abstract": "This appendix describes how a-priori rupture models were developed for the northern California Type-A faults. As described in the main body of this report, and in Appendix G, \u201ca-priori\u201d models represent an initial estimate of the rate of single and multi-segment surface ruptures on each fault. Whether or not a given model is moment balanced (i.e., satisfies section slip-rate data) depends on assumptions made regarding the average slip on each segment in each rupture (which in turn depends on the chosen magnitude-area relationship). Therefore, for a given set of assumptions, or branch on the logic tree, the methodology of the present Working Group (WGCEP-2007) is to find a final model that is as close as possible to the a-priori model, in the least squares sense, but that also satisfies slip rate and perhaps other data. This is analogous the WGCEP- 2002 approach of effectively voting on the relative rate of each possible rupture, and then finding the closest moment-balance model (under a more limiting set of assumptions than adopted by the present WGCEP, as described in detail in Appendix G). The 2002 Working Group Report (WCCEP, 2003, referred to here as WGCEP-2002), created segmented earthquake rupture forecast models for all faults in the region, including some that had been designated as Type B faults in the NSHMP, 1996, and one that had not previously been considered. The 2002 National Seismic Hazard Maps used the values from WGCEP-2002 for all the faults in the region, essentially treating all the listed faults as Type A faults. As discussed in Appendix A, the current WGCEP found that there are a number of faults with little or no data on slip-per-event, or dates of previous earthquakes. As a result, the WGCEP recommends that faults with minimal available earthquake recurrence data: the Greenville, Mount Diablo, San Gregorio, Monte Vista-Shannon and Concord-Green Valley be modeled as Type B faults to be consistent with similarly poorly-known faults statewide. As a result, the modified segmented models discussed here only concern the San Andreas, Hayward-Rodgers Creek, and Calaveras faults.",
     "description": "iii, 7 p.",
     "publisher": {
       "@type": "Organization",
       "name": "U.S. Geological Survey"
     },
     "author": [
       {
         "@type": "Person",
         "name": "Weldon, Ray J. II",
         "givenName": "Ray J.",
         "familyName": "Weldon"
       },
       {
         "@type": "Person",
         "name": "Wills, Chris J.",
         "givenName": "Chris J.",
         "familyName": "Wills"
       },
       {
         "@type": "Person",
         "name": "Field, Edward H. field@usgs.gov",
         "givenName": "Edward H.",
         "familyName": "Field",
         "email": "field@usgs.gov",
         "identifier": {
           "@type": "PropertyValue",
           "propertyID": "ORCID",
           "value": "0000-0001-8172-7882",
           "url": "https://orcid.org/0000-0001-8172-7882"
         },
         "affiliation": [
           {
             "@type": "Organization",
             "name": "Geologic Hazards Science Center",
             "url": "https://www.usgs.gov/centers/geologic-hazards-science-center"
           }
         ]
       }
     ],
     "funder": [
       {
         "@type": "Organization",
         "name": "Earthquake Hazards Program",
         "url": "https://www.usgs.gov/programs/earthquake-hazards"
       },
       {
         "@type": "Organization",
         "name": "Earthquake Science Center",
         "url": "https://www.usgs.gov/centers/earthquake-science-center"
       },
       {
         "@type": "Organization",
         "name": "Geologic Hazards Science Center",
         "url": "https://www.usgs.gov/centers/geologic-hazards-science-center"
       }
     ]
   }
 }

}