Information for Strong-Motion Station
San Bruno - 6-story Office Bldg
CGS - CSMIP Station 58490
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 37.6282 N
Longitude 122.4253 W
Elevation (m) 33
Site Geology Alluvium over rock (sandstone)
Vs30 (m/sec) 365 (inferred)
Site Class C/D
Remarks/Notes Site information sources
No. of Stories above/below ground6/0
Plan ShapeRectangular
Base Dimensions90' x 200'
Typical Floor DimensionsSame as base dimensions
Design Date1978
Instrumentation1985. 13 accelerometers, on 4 levels in the building.
Vertical Load Carrying SystemConcrete slab supported on reinforced conrete beams and columns.
Lateral Force Resisting SystemDuctile moment resisting reinforced concrete frames at the perimeter and at 1 interior frame with concrete roof and floor diaphrams.
Foundation TypeSpread footings