Accession Number:

AD0274992

Title:

RESEARCH DIRECTED TOWARD OBTAINING BASIC INFORMATION REQUIRED FOR INTERPRETATIVE IDENTIFICATION OF TYPES OF SEISMIC SIGNALS SUPERPOSED ON A NOISE BACKGROUND

Descriptive Note:

Corporate Author:

AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s):

Report Date:

1962-02-28

Pagination or Media Count:

1.0

Abstract:

The general objective of this research was to obtain data on the vibration frequency of some wave types which form a part of the diagnostic pattern of seismic signals recorded superposed on the usual noise background in three tectonic provinces of the midcontinental US. The essential objectives of the research were achieved by the analysis of both kinds of recorded data to determine amplitude-frequency spectra in the range from 0.5--20 cps for several seismic signals. The principal types of signals which were investigated were the seismic waves generated by blasts and earthquakes. Concurrent with the recording of various seismic signals, background noise was recorded so that site comparison could be made. At the same time certain other seismic signals were noted. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE