Applications of Higher Mode Surface Waves

Abstract

Amplitudes of first higher mode Love waves from seismic events in North America were measured on the North American continent and corrected for attenuation, structure, and distance. The corrected amplitudes were fitted to a source model to estimate the source depth. The high value of the attenuation coefficient and lack of a good seismic model prevented good agreement between known and calculated depths. In order to estimate the effect of the seismic source structure, the ratio of the first higher mode to fundamental Love wave amplitudes was found experimentally and compared to the theoretical prediction. Agreement was better than for the spectral fitting method but was still short of being satisfactory.

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Document Details

Document Type
Technical Report
Publication Date
Oct 08, 1976
Accession Number
ADA034883

Entities

People

  • Stephen S. Lane

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Continents
  • Contracts
  • Earth Models
  • Earthquakes
  • Group Velocity
  • Love Waves
  • Models
  • North America
  • Orientation (Direction)
  • Rayleigh Waves
  • Seismic Velocity
  • Seismic Waves
  • Surface Waves
  • Virginia
  • Waves

Readers

  • Approximation Theory.
  • Seismology