Near Field Small Earthquake - Long Period Spectrum

Abstract

Preliminary analysis of long-period recordings of five central California earthquakes indicates that the long-period of the observed spectra may be influenced by the recording site; that the spectrum for small earthquakes tends to be somewhat peaked; and that a Q of 100 seems to be appropriate for the area of interest. Work in Nevada has led to selection of a site for a continuation of the near-field experiment. The area selected is north of the Mina area and south of Fairview Peak. Stations there would be expected to record at least one event per year with M = or > 4.

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Document Details

Document Type
Technical Report
Publication Date
Aug 12, 1974
Accession Number
ADA000545

Entities

People

  • Alan Ryall
  • Bruce M. Douglas

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Amplitude
  • Contracts
  • Epicenters
  • Frequency
  • Frequency Shift
  • Instrumentation
  • Measurement
  • Near Field
  • Radiation Patterns
  • Recording Systems
  • Rodents
  • Secondary Waves
  • Stations
  • Strain Rate
  • Tape Recording
  • Waves

Fields of Study

  • Geology

Readers

  • Seismology
  • Theoretical Analysis.