Regional Wave Attenuation in Eurasia

Abstract

Presented here in this Scientific Report Number 1 are the preliminary results of the first phase of our two-year investigation into the regional wave attenuation in Eurasia. Our first six-month effort has focused upon the Lg waves, as recorded by the IRIS and CDSN stations. A time-domain method for measuring the Lg attenuation has been developed and successfully tested in Eurasia, yielding stable results which are directly compatible with Nuttli's method for seismic magnitude/yield estimation. While continuing to refine our Lg results through improvements in path coverage and methodological upgrading, our future efforts will be directed at gaining a better understanding of the Pn attenuation in the region. Lg ATTENUATION, EURASIA, IRIS, CDSN, SOURCE EFFECTS, TIME-DOMAIN ANALYSIS, SITE EFFECTS.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1992
Accession Number
ADA249867

Entities

People

  • Kin-yip Chun
  • Tianfei Zhu

Organizations

  • University of Toronto

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplitude
  • Attenuation
  • Equations
  • Eurasia
  • Explosions
  • Frequency
  • Group Velocity
  • Measurement
  • Radiation
  • Radiation Effects
  • Radiation Patterns
  • Seismic Detection
  • Surface Waves
  • Time Domain
  • Underground Explosions
  • Ussr
  • Waves

Readers

  • Research Science/Academic Research
  • Seismology