Research in Seismology: Earthquake Magnitudes

Abstract

The report describes research on the applicability of the mb:Ms method to discriminate between small-magnitude earthquake and explosions in Eurasia. The report presents a formula, valid on a world-wide basis, which enables the Ms threshold to be lowered to 2.8. When the formula was applied to the data from moderate- to high-yield Eurasian explosions, it was found that the mb:Ms curve for those events is the same as for Nevada Test Site events. Data are presented for some presumed Eurasian earthquakes whose mb:Ms values place them in the explosion population.

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Document Details

Document Type
Technical Report
Publication Date
Jul 19, 1974
Accession Number
AD0786483

Entities

People

  • Otto W. Nuttli
  • So Gu Kim

Organizations

  • Saint Louis University

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Attenuation
  • Background Noise
  • Contracts
  • Depth
  • Earthquakes
  • Eurasia
  • Explosions
  • Gain
  • Geographic Regions
  • High Gain
  • North America
  • Nuclear Explosions
  • Seismic Waves
  • Surface Waves
  • Underground Explosions
  • Waves

Readers

  • Regression Analysis.
  • Seismology