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

• Main Authors: Stevens, J. L., McLaughlin, K. L.
• Other Authors: S-CUBED LA JOLLA CA
• Format: Text
• Language: English
• Published: 1995
• Subjects: Government and Political Science; Snow; Ice and Permafrost; Seismic Detection and Detectors; Nuclear Weapons; *SEISMIC DETECTION; *SEISMIC WAVES; *ARMS CONTROL; *NUCLEAR EXPLOSION DETECTION; *SEISMIC DISCRIMINATION; *EARTHQUAKES; SYMPOSIA; SURFACE WAVES; MAXIMUM LIKELIHOOD ESTIMATION; UNDERGROUND EXPLOSIONS; TREATIES; TEST BAN TREATIES; CTBT(COMPREHENSIVE TEST BAN TREATY); Ice; permafrost
• Online Access: http://www.dtic.mil/docs/citations/ADP204419; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP204419

The objective of this research is to develop a robust extension of the mb:Ms 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 mb:Ms 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. This article is from 'Proceedings of the Annual Seismic Research Symposium on Monitoring a Comprehensive Test Ban Treaty (17th) Held in Scottsdale, Arizona on 12-15 September, 1995', 1996 0607 035, p119.