Evaluation of the Korean Short-Period Array

Abstract

The Korean Seismic Research Station (KSRS) short-period array was evaluated using data which cover eight-hour time periods daily between May and June 1973. Most of the data is of poor quality due to instrumental problems. The average noise reduction obtained by beaming was about 2 dB better than square root of (N) due to the almost continuous presence of propagating coherent noise at the station. The 50% detection body wave magnitude threshold was found to be 4.35 + or - .45 (95% confidence interval) at the epicentral distance of 60 deg. The 90% detection threshold was found to be 5.42 + or - .45 magnitude units.

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Document Details

Document Type
Technical Report
Publication Date
Apr 20, 1976
Accession Number
ADA035587

Entities

People

  • Maurice Blaik
  • Zoltan Der

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Birds
  • Data Analysis
  • Detection
  • Frequency
  • Geographic Regions
  • Intervals
  • Noise
  • Noise Reduction
  • Plastic Explosives
  • Power Spectra
  • Seismic Arrays
  • Seismic Detection
  • Seismometers
  • Spectra
  • Square Roots
  • Test And Evaluation
  • Time Intervals

Readers

  • Approximation Theory.
  • Seismology