Accession Number:

AD0774472

Title:

Research Directed toward the Use of Long and Intermediate Period Seismic Waves for the Identification of Seismic Sources

Descriptive Note:

Semi-Annual technical rept. no. 4, 1 Jan-30 Jun 1973

Corporate Author:

LAMONT-DOHERTY GEOLOGICAL OBSERVATORY PALISADES NY

Personal Author(s):

• McCamy, Keith

Report Date:

1973-10-01

Pagination or Media Count:

13.0

Abstract:

During this period, significant advances have been made in our understanding of the physical processes of natural seismic sources. Intra-plate earthquakes -- the isolated events which occur in the relatively seismically inactive interiors of lithospheric plates -- have been found to display a pattern whose consistency on a global scale is emerging. This pattern provides important constraints on the mechanisms possible for driving plate tectonics as well as reducing the changes of intra-plate earthquakes being misidentified as explosive sources. The intra-plate earthquake swarm at Blue Mt. Lake, N.Y. provided evidence that helped evoke the dilatancy model of the physical process of rock failure.

Descriptors:

• *LITHOSPHERE
• *SEISMIC DETECTION
• *SEISMIC WAVES
• CONTINENTAL SHELVES
• EARTHQUAKES
• FAILURE
• IDENTIFICATION
• MOTION
• NEW YORK
• ROCK
• SEISMOLOGICAL STATIONS
• SEISMOMETERS
• SOURCES
• TECTONICS

Subject Categories:

• Seismology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE