Estimation of Seismic Detection Thresholds

Abstract

This report deals with the general problem of estimating the incremental detection capability of a seismic station, i.e., the probability of detection as a function of event magnitude. A maximum likelihood procedure is introduced to estimate the station detection thresholds by comparison with an independent reference station or network. Approximate confidence limits for the estimated parameters are computed. The results obtained by this (direct) method are compared to estimates derived from applying the exponential magnitude- frequency relationship of natural seismicity. It is found that the latter (indirect) method in general gives significantly lower 90 percent detection thresholds. It is concluded that, if a good reference system is available, the direct method will produce estimates that are more reliable than those provided by the indirect method.

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Document Details

Document Type
Technical Report
Publication Date
May 28, 1974
Accession Number
ADA001100

Entities

People

  • Frode Ringdal

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Computational Science
  • Confidence Limits
  • Data Analysis
  • Data Science
  • Databases
  • Detection
  • Detectors
  • Distribution Functions
  • Gaussian Distributions
  • Information Science
  • Kurile Islands
  • Maximum Likelihood Estimation
  • Normal Distribution
  • Probability
  • Seismic Detection
  • Simulations

Readers

  • Regression Analysis.
  • Seismology