- Author
-
Idriss, I. M.
- Title
- Assessment of Site Response Analysis Procedures.
- Coporate
- California Univ., Davis
- Sponsor
- National Institute of Standards and Technology, Gaithersburg, MD
- Report
-
NIST GCR 95-667
July 1993
144 p.
- Distribution
- Available from National Technical Information Service
- Keywords
-
earthquakes
- Identifiers
- Loma Prieta earthquake, San Francisco, California, October 17, 1989; SHAKE91; site response analysis; Treasure Island site; San Francisco Airport Site; earthquake ground motions recorded during the 1989 Loma Prieta earthquake; characteristics of the horizontal earthquake ground motions recorded at rock sites during the 1989 Loma Prieta earthquake; characteristics of the horizontal earthquake ground motions recorded at soft soil sites during the 1989 Loma Prieta earthquake; input data for equivalent linear analyses at the Treasure Island site and at the San Francisco Airport site based on best estimate shear wave velocities
- Abstract
- The Loma Prieta earthquake occurred on October 17, 1989 at 5:04 pm Pacific daylight time along a 45-km long segment of the San Andreas fault in the Santa Cruze Mountains. The earthquake was assigned a surface wave magnitude, Ms=7.1, and a moment magnitude, Mw=7 making it the largest earthquake to occur in Northern California since the 1906 earthquake. The earthquake triggered by far the largest number of instruments ever triggered by an earthquake and recordings were obtained at well over 200 locations, including free-field stations, small buildings, high rise structures and dams. Of these, 88 stations were at locations that can be considered to represent free-field conditions, i.e., the instrument had been placed in a small instrument shack or is at the ground floor of a small structure (three stories or less) with no basement.