Information for Strong-Motion Station
Los Angeles - 4-story Govt Office Bldg
CGS - CSMIP Station 14766
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 33.9612 N
Longitude 118.3793 W
Elevation (m) 31
Site Geology Deep alluvium
Vs30 (m/sec) 332 (inferred)
Site Class D
Remarks/Notes Site information sources
No. of Stories above/below ground4/0
Plan ShapeRectangular
Base Dimensions324' x 216'
Typical Floor Dimensions324' x 144'
Design Date1984
Instrumentation1998. 12 accelerometers, on 5 levels in the building. 3 accelerometers at a reference free-field site.
Vertical Load Carrying SystemConcrete slabs over metal decks supported by steel frames.
Lateral Force Resisting SystemPerimeter moment resisting steel frames. Seismically upgraded with viscous dampers.
Foundation TypeIsolated spread footings
RemarksThe building was constructed in 1984 and seismically upgraded in 1997.