Interpretation of Strong-Motion Earthquake Accelerograms Using a Moving Dislocation Model

Abstract

Near-field strong-motion accelerograms of the San Fernando earthquake and three of its aftershocks recorded at Pacoima Dam were analyzed using Haskell's moving dislocation model. For the main shock, it was found that: (1) The effect of stick-slip (segmented rupture velocities) is not prominent within a moderate range of rupture velocities; (2) A hinged fault surface can produce the necessary initial negative polarity of the vertical velocity trace; (3) Using Jungles' and Frazier's (1973) solution, the Haskell model produces very large amplitudes compared to those observed.

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Document Details

Document Type
Technical Report
Publication Date
Nov 15, 1973
Accession Number
AD0773323

Entities

People

  • James C. Battis
  • Lawrence S. Turnbull Jr.

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Amplitude
  • California
  • Contracts
  • Coordinate Systems
  • Equations
  • Far Field
  • Frequency
  • Geometry
  • Near Field
  • Orientation (Direction)
  • Plane Geometry
  • Scientific Research
  • Security
  • Transverse
  • Waveforms
  • Waves

Readers

  • Seismology