Lg Wave Excitation and Propagation in Presence of One-, Two-, and Three-Dimensional Heterogeneities.

Abstract

A detailed study of Lg wave excitation and propagation from a sequence of earthquakes in New Brunswick is performed. Primary conclusions are that Lg Q increases with frequency. Perhaps more importantly for regional source studies is the observation of significant high frequency Pn and Sn arrivals at 1000 km which are much greater than the Lg arrival. Source estimates based on the Lg provide reasonable estimates of seismic moment, but corner frequencies differ from short distance measurements. Keywords include: Lg attenuation and source estimates.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1986
Accession Number
ADA169325

Entities

People

  • R. B. Herrmann

Organizations

  • Saint Louis University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Attenuation
  • Canada
  • Classification
  • Data Sets
  • Digital Data
  • Earth Models
  • Earthquakes
  • Excitation
  • Frequency
  • Frequency Domain
  • Measurement
  • New Brunswick
  • North America
  • Observation
  • Surface Waves
  • Three Dimensional

Fields of Study

  • Engineering

Readers

  • Seismology