Information for Strong-Motion Station
Los Angeles - 2-story County EOC Bldg
CGS - CSMIP Station 24723
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 34.0504 N
Longitude 118.1763 W
Elevation (m) 121
Site Geology Rock (siltstone)
Vs30 (m/sec) 365 (measured)
Site Class C/D
Remarks/Notes Site information sources
No. of Stories above/below ground2/0
Plan ShapeRectangular
Base Dimensions160' x 90'
Typical Floor Dimensions160' x 90'
Design Date1992
Instrumentation1996. 15 accelerometers, on 4 levels in the building. 3 accelerometers at a reference free-field site.
Vertical Load Carrying SystemConcrete slabs over metal decks supported by steel frames. Frames are supported by high damping rubber (HDR) isolators.
Lateral Force Resisting SystemBraced steel frames (Chevron type) on high damping rubber (HDR) isolators.
Foundation TypeConcrete spread footings interconnected by tie beams.
RemarksBuilding is designed to conform with Title 24 (essential facility).