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Matched-filter detection of surface waves of periods up to seventy-five seconds generated by small earthquakes

DALLAS GEOPHYSICAL LABORATORY SOUTHERN METHODIST UNIVERSITY, DALLAS, TEXAS 75275
DEPARTMENT OF BUSINESS ADMINISTRATION UNIVERSITY OF TEXAS AT ARLINGTON, ARLINGTON, TEXAS 76010

Abstract

Very long-period Rayleigh waves detected in Texas from a large source area exhibited remarkably stable dispersion characteristics. It appears that similarities in the gross structure of the Earth have created a wave guide over the pole from the source area, the Sino-Soviet landmass. These observations were made possible by using a seismograph system which had a peak response at a longer period than usual (50 sec), enabling the detection of very long-period Rayleigh waves from small earthquakes at teleseismic distances.

Footnotes

^* Present address: Gulf Research and Development Company, Pittsburgh, Pennsylvania 15230.

This article has been cited by other articles:

				E. BERG Rayleigh waves from high-gain long-period stations: Signal extraction, amplitude determination, and separation of overlapping wave trains Bulletin of the Seismological Society of America, December 1, 1975; 65(6): 1761 - 1778. [Abstract] [PDF]