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Effects of local geology on ground motion in the San Francisco Bay region, California: A continued study Effects of local geology on ground motion in the San Francisco Bay region, California: A continued study

Measurements of ground motion generated by nuclear explosions in Nevada have been completed for 99 locations in the San Francisco Bay region, California. The seismograms, Fourier amplitude spectra, spectral amplification curves for the signal, and the Fourier amplitude spectra of the seismic noise are presented for 60 locations. Analog amplifications, based on the maximum signal...
Authors
James F. Gibbs, Roger D. Borcherdt

Landslides Landslides

No abstract available.
Authors
Water Resources Division U.S. Geological Survey

Structural framework of United States Atlantic outer continental shelf north of Cape Hatteras Structural framework of United States Atlantic outer continental shelf north of Cape Hatteras

To assess the area’s hydrocarbon potential, regional geologic and geophysical studies are being conducted by the U.S. Geological Survey to determine the structural framework of the United States Atlantic outer continental shelf (AOCS) north of Cape Hatteras. Preliminary interpretations of geophysical data suggest that the buried ridge under the eastern edge of the AOCS in the Baltimore...
Authors
R.E. Mattick, R. Q. Foote, N. L. Weaver, M. S. Grim
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