Information for Strong-Motion Station
Los Angeles; 1100 Wilshire
NSMP Station 5233
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 34.0523 N
Longitude 118.2637 W
Elevation (m) 104
Site Geology  
Vs30 (m/sec)  
Site Class  
No. of Stories above/below ground34/3
Plan Shaperectangular plan shape in first 11 stories and triangular plan shape in the next 23 stories
Base Dimensions177 ftx146 ft
Typical Floor Dimensions177 ftx146 ft (bottom 11 stories), 177 ftx146 ftx229 ft (top 23 stories)
Design Date1986
Instrumentation1986, 21 accelerometers on six levels of building.
Vertical Load Carrying SystemConcrete slab supported by steel and concrete beam/columns in 23 top and 14 bottom stories, respectively.
Lateral Force Resisting SystemReinforced concrete shear walls in the first 11 stories (and basements) and steel moment-resisting frame top 23 stories
Foundation TypeMassive individual concrete footings