NEHRP Clearinghouse

displaying 1 - 3 results in total 3

• 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: Numerical analysis; Cagniard deHoop technique; Seismic waves; Ray theory; Reprints; Wave propagation; Elastic waves; Faults (Geology); Iterations; Earthquakes

• Stewart, 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); Earthquakes

• Ebel, 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 seismograms