NEHRP Clearinghouse
displaying 1 - 5 results in total 5
Catchings, R. D.; Goldman, M. R.; Steedman, C. E.; Gandhok, G.
Velocity Models, First-Arrival Travel Times, and Geometries of 1991 and 1993 USGS Land-Based Controlled-Source Seismic Investigations in the San Francisco Bay Area, California: In-Line Shots.
November 19, 2004, 36 p.
Identifying Number(s): USGS/OFR-2004-1423
Keywords: San Francisco Bay area; Seismic velocity; Seismic data; Travel time; Seismic waves; California; Tables (Data); In-line shots; Data collection; Geometries; TomographyGibbs, J. F.; Tinsley, J. C.; Boore, D. M.
Borehole Velocity Measurements at Five Sites That Recorded the Cape Mendocino, California Earthquake of 25 April, 1992.
January 2002, 58 p.
Identifying Number(s): USGS/OFR-02-203
Keywords: ; Travel time; Seismometers; California; Seismic waves; Data sources; Boreholes; Geological surveys; Ground motion; Acceleration; Velocity measurement; EarthquakesBrocher, T. M.; Ruebel, A. L.
Compilation of 29 Sonic and Density Logs from 23 Oil Test Wells in Western Washington State.
January 1998, 66 p.
Identifying Number(s): USGS-OFR-98-249
Keywords: Seismic velocity; Stratigraphy; Three dimensional models; Travel time; Oil test wells; Volcanic rocks; Data compilation; Ground motion; Exploratory wells; Density; Washington (State); EarthquakesLienert, 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: Equations; HYPOCENTER model; Velocity; Arrival time; Seismic velocity; Seismic data; Damping; Time; Earthquakes; Position (Location); Travel time; Algorithms; Seismic arrays; Mean; Reprints; Variables; Epicenters; Adaptive systems; Iterations; Least squares methodToomey, D. R.
Tectonics and Three-Dimensional Structure of Spreading Centers: Microearthquake Studies and Tomographic Inversions.
National Science Foundation, Washington, DC.; Office of Naval Research, Arlington, VA., September 1987, 214 p.
Identifying Number(s): WHOI-87-35
Keywords: Morphology; Microearthquakes; Tectonics; Travel time; Physical properties; Accretion; Mid-Atlantic Ridge; Global; Rift; Theses; Tomographic inversion; Earthquakes