NEHRP Clearinghouse

displaying 1 - 4 results in total 4

  • Lienert, B. R.; Berg, E.; Frazer, L. N.
    Hypocenter: An Earthquake Location Method Using Centered, Scaled, and Adaptively Damped Least Squares.
    June 1986, 15 p.
    Identifying Number(s): HIG-CONTRIB-1712
    Keywords: Damping; HYPOCENTER model; Time; Mean; Iterations; Earthquakes; Equations; Velocity; Adaptive systems; Epicenters; Variables; Seismic velocity; Seismic data; Seismic arrays; Least squares method; Arrival time; Algorithms; Reprints; Position (Location); Travel time

  • Waldhauser, F.
    hypoDD: A Program to Comput Double-Difference Hypocenter Locations (hypoDD Version 1.0 - 03/2001).
    January 2001, 30 p.
    Identifying Number(s): USGS/OFR-01-113
    Keywords: Data weighting; Error assessments; Output files; HypoDD; Double-difference algorithms; Utility programs; Earthquakes; Input files; Installation; Hypocenter locations; Epicenters; Syntax; Algorithms; Fortran computer program packages; Earthquake relocation; Data selection; Event clustering

  • Dewey, J. W.
    Seismicity of Afghanistan and Vicinity.
    January 2006, 62 p.
    Identifying Number(s): USGS/OFR-2006-1185
    Keywords: ; Catalogs; Macroseismic effects; Earthquakes; Afghanistan; Focal depths; Accuracy; Epicenters; Seismicity; Tectonics

  • Seismicity Report on Black Rock Desert Project - Northwest Nevada.
    National Science Foundation, Washington, D.C. Research Applied to National Needs., August 1974, 34 p.
    Keywords: Seismic surveys; Seismic detection; Northwest Region (Nevada); Earthquakes; Instrumentation; Epicenters; Gerlach (Nevada); Seismic arrays; Geothermal prospecting; Seismological stations; Seismic prospecting; Seismometers; Geophysical surveys; Nevada