NEHRP Clearinghouse
displaying 11 - 18 results in total 18
Ewing, J. I.; Purdy, G. M.
Microearthquake Activity on the Orozco Fracture Zone: Preliminary Results from Project Rose.
June 13, 1980, 14 p.
Identifying Number(s): ['WHOI-81-79', 'WHOI-CONTRIB-4817']
Keywords: Microseisms; Microearthquakes; Orozco Fracture Zone; Ocean bottom; Reprints; Earthquakes; Measurement; ROSE (Riveria Ocean Seismic Experiment); North Pacific OceanStewart, G. S.; Helmberger, D. V.
The Bermuda Earthquake of March 24, 1978: A Significant Oceanic Intraplate Event.
Air Force Office of Scientific Research, Bolling AFB, DC., July 29, 1980, 12 p.
Identifying Number(s): CONTRIB-3337
Keywords: Plate tectonics; Tectonics; Plates; Atlantic Ocean; Reprints; Secondary waves; Oceanic crust; Primary waves (Seismic waves); EarthquakesEbel, J. E.; Helmberger, D. V.
P-Wave Complexity and Fault Asperities: The Borrego Mountain, California, Earthquake of 1968.
Air Force Office of Scientific Research, Bolling AFB, DC., November 13, 1980, 27 p.
Keywords: Fault asperities; Seismic waves; Time domain; P waves; Reprints; Teleseismic waves; Modeling; Earthquakes; Synthetic seismogramsKnopoff, L.; Kagan, Y. Y.; Knopoff, R.
b Values for Foreshocks and Aftershocks in Real and Simulated Earthquake Sequences.
National Science Foundation, Washington, DC., January 1982, 17 p.
Keywords: Seismic waves; Magnitude; Ground motion; Earthquake engineering; Reprints; Statistical data; Frequency distribution; Shock waves; EarthquakesProceedings of the Joint U.S.-P.R.C. Microzonation Workshop, Harbin, China, September 11-16, 1981.
National Science Foundation, Washington, DC., January 1981, 638 p.
Keywords: Seismic intensity; Earthquake resistant structures; Predictions; Seismic waves; Land use; Dynamic response; Ground motion; Earthquake engineering; Site surveys; Reprints; Meetings; Liquefaction (Soils); Soil dynamics; Geologic investigations; Microzonation; 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 methodMcCaffrey, R.; Nabelek, J.
Earthquake, Gravity, and the Origin of the Bali Basin: An Example of a Nascent Continental Fold-and-Thrust Belt.
Air Force Geophysics Lab., Hanscom AFB, MA., January 10, 1987, 22 p.
Keywords: North america; Depth; Deformation; Seismic waves; Indonesia; Short range (Time); Subduction zones; Sources; Tectonics; Continental drift; Lithosphere; Ocean bottom topography; Basins (Geographic); Gravitational fields; Thrust; Reprints; Oceanic crust; Bathymetry; East (Direction); Bali basin; Gravity; Ocean basins; Primary waves (Seismic waves); EarthquakesFornari, D. J.; Garcia, M. O.; Tyce, R. C.; Gallo, D. G.
Morphology and Structure of Loihi Seamount Based on Seabeam Sonar Mapping.
December 10, 1988, 16 p.
Keywords: Volcanism; Loihi Seamount; Sonar mapping; Multibeam sonar; Structural geology; Mapping; Tectonics; Sonar; Volcanoes; Seabeam sonar; Seamounts; Mass wasting; Vents; Slope; Rift zones; Ocean bottom topography; Rings; Craters; Dikes; Marine geology; Mass flow; Asymmetry; Reprints; Ridges; Hawaii; Valleys; Bathymetry; Morphology; Multiple beams (Radiation); Maps; Earthquakes