Information for Strong-Motion Station
CA:LA;UCLA Boelter Hall; 2nd Fl NW side
NSMP Station 5501
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 34.0685 N
Longitude 118.4433 W
Elevation (m) 104
Site Geology  
Vs30 (m/sec)  
Site Class  
No. of Stories above/below ground6/0
Plan ShapeRectangular
Base Dimensions121 ftx60 ft
Typical Floor Dimensions121 ftx60 ft
Design Date1959
Instrumentation2013, 24 accelerometers on seven levels of building.
Vertical Load Carrying SystemConcrete slab supported by concrete beams and columns.
Lateral Force Resisting SystemReinforced concrete moment-resisting frame and shear walls
Foundation TypeSpread footings
RemarksThe Boelter Hall is composed of four seismically seperated wings and only the South wing is instrumented. The information provided here is about the south wing.