Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Verification of subsurface conditions at selected ''rock'' accelerograph stations in California

Technical Report ·
OSTI ID:6892682
Studies were conducted at nineteen accelerograph station sites in southern California which have been categorized by other researchers as rock sites. Each site was visited and available geotechnical data was compiled in an effort to verify the subsurface conditions. In most cases this reconnaissance and literature search was adequate in describing the site conditions. However, at a total of five locations, the subsurface conditions could not be verified by these means. In these specific cases, a single boring was advanced at each site for the purpose of investigating the subsurface soils. Contained in this report are our findings on the subsurface conditions at each of these nineteen accelerograph stations. The report is divided into two sections, with each section representing a geographic area in which the stations are located: Central Los Angeles District and Northern Mountains District. Presented in each section is specific data on each station including descriptions of station housing, instrumentation and subsurface conditions as well as general information of each of the regions including discussions of the regional and local geology and structure and seismicity of the study areas. Information on the earthquakes recorded at each of the stations, including ground motion time history plots and response spectra curves, as well as soil boring logs made by others in the general vicinity of the site areas are presented in appendices of this report.
Research Organization:
Shannon and Wilson, Inc., Seattle, WA (USA); Agbabian Associates, El Segundo, CA (USA)
OSTI ID:
6892682
Report Number(s):
NUREG/CR-0055(Vol.1)
Country of Publication:
United States
Language:
English