Information for Strong-Motion Station
Belmont - 2-story Office Bldg
CGS - CSMIP Station 58262
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 37.5114 N
Longitude 122.3082 W
Elevation (m) 162
Site Geology Rock (sandstone)
Vs30 (m/sec) 628 (measured)
Site Class C
Remarks/Notes Site information sources
No. of Stories above/below ground2/1
Plan ShapeSquare
Base Dimensions176' x176'
Typical Floor DimensionsSame as base dimensions
Design Date1973
Instrumentation1976. 7 accelerometers, on 2 levels in the building.
Vertical Load Carrying System4 1/2" composite deck (3"concrete over 1-1/2" metal deck) and steel trusses on roof and 2nd floor; interior tube columns, exterior concrete columns.
Lateral Force Resisting SystemSymmetrical shearwalls (concrete tilt-up) in each direction in each corner
Foundation Type5" slab on footings - basement; 5" slab on 10' piers - ground level
Remarks2 miles east of San Andreas Fault