NEHRP Clearinghouse

displaying 1 - 2 results in total 2

• 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

• Helmberger, D. V.; Harkrider, D. G.
  Modeling Earthquakes with Generalized Ray Theory.
  Air Force Office of Scientific Research, Bolling AFB, DC, January 1978, 21 p.
  Identifying Number(s): CONTRIB-2959
  Keywords: Elastic waves; Iterations; Ray theory; Earthquakes; Faults (Geology); Numerical analysis; Cagniard deHoop technique; Wave propagation; Reprints; Seismic waves