Seismic Threshold Determination

Problems in accurate determination of seismic threshold magnitude are analytically tractable for only some simple, but interesting, cases. This report gives these analytic results and proceeds to a simulation experiment to provide insights where analytic predictions are not possible. Differences in...

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Bibliographic Details
Main Authors: Von Seggern, David, Blandford, Robert
Other Authors: TELEDYNE GEOTECH ALEXANDRIA VA SEISMIC DATA ANALYSIS CENTER
Format: Text
Language:English
Published: 1974
Subjects:
Seismology
Seismic Detection and Detectors
*SEISMIC DETECTION
*UNDERGROUND EXPLOSIONS
CORRELATION TECHNIQUES
EARTHQUAKES
INTENSITY
MONTANA
MONTE CARLO METHOD
NUCLEAR EXPLOSIONS
PREDICTIONS
PROBABILITY DENSITY FUNCTIONS
SEISMIC WAVES
SEISMOLOGICAL STATIONS
SIGNAL TO NOISE RATIO
SIMULATION
Vela Uniform
Seismic discrimination
Large aperture seismic array
Kamchatka
Online Access:http://www.dtic.mil/docs/citations/ADA010143
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA010143
Description
Summary:Problems in accurate determination of seismic threshold magnitude are analytically tractable for only some simple, but interesting, cases. This report gives these analytic results and proceeds to a simulation experiment to provide insights where analytic predictions are not possible. Differences in direct, incremental, and cumulative threshold determinations; distinctions between true and observed thresholds; effects of correlated signals and noise; feedback between LR and P thresholds; and estimation of (M sub s)-(m sub b) relationships are treated in this simulation experiment. A comparison of simulated detection results is made with real data from LASA on the Kamchatka- Kurile region and good agreement is obtained between predictions and observations.

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