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Mineral resources of the Cabinet Mountains Wilderness, Lincoln and Sanders Counties, Montana

Open-File Report 78-327

By:
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Abstract

This report describes the differential array, of seismometers recently installed at the Hollister, California, Municipal Airport. Such an array of relatively closely spaced seismometers has already been installed in El Centro and provided useful information for both engineering and seismological applications from the 1979 Imperial Valley earthquake. Differential ground motions, principally due to horizontally propagating surface waves, are important in determining the stresses in such extended structures as large mat foundations for nuclear power stations, dams, bridges and pipelines. Further, analyses of the records of the 1979 Imperial Valley earthquake from the differential array have demonstrated the utility of short-baseline array data in tracking the progress of the rupture wave front of an earthquake.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Mineral resources of the Cabinet Mountains Wilderness, Lincoln and Sanders Counties, Montana
Series title:
Open-File Report
Series number:
78-327
Edition:
-
Year Published:
1978
Language:
ENGLISH
Description:
vi, 99 p. : maps (14 fold. in envelope) ; 27 cm.