Accession Number:

ADP204419

Title:

A Transportable Regional Discriminant Using a Maximum Likelihood Analysis of Surface Waves,

Descriptive Note:

Corporate Author:

S-CUBED LA JOLLA CA

Personal Author(s):

Report Date:

1995-08-14

Pagination or Media Count:

1.0

Abstract:

The objective of this research is to develop a robust extension of the mbMs discriminant that is 1 transportable from region to region, 2 optimizeable for each region, 3 frequency independent, 4 usable at regional and teleseismic distances, 5 applicable to small magnitude events, 6 able to determine an upper bound in the absence of surface wave data, 7 robust with respect to regional variations and operational considerations, 8 usable in an operational system. The product of this research will be a procedure to analyze surface waves from earthquakes, explosions, and other seismic sources, and to form a discriminant, an extension of the mbMs discriminant, that can be implemented in an automated, semi-automated, or interactive system. The research will test the procedure on a broad range of data to determine the range of reliability, minimum magnitude for which the method provides reliable results, limitations and unusual conditions that might cause the analysis procedure or discriminant to fall.

Subject Categories:

  • Government and Political Science
  • Snow, Ice and Permafrost
  • Seismic Detection and Detectors
  • Nuclear Weapons

Distribution Statement:

APPROVED FOR PUBLIC RELEASE