Information for Strong-Motion Station
Concord - 8-story Residential Bldg
CGS - CSMIP Station 58492
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 37.9789 N
Longitude 122.0340 W
Elevation (m) 21
Site Geology Alluvium
Vs30 (m/sec) - -
Site Class C
Remarks/Notes Site information sources
No. of Stories above/below ground8/0
Plan ShapeRectangular
Base Dimensions74' x 212'
Typical Floor DimensionsSame as base dimensions
Design Date1974
Instrumentation1985. 13 accelerometers, on 4 levels in the building.
Vertical Load Carrying SystemPrecast concrete slab elements supported on reinforced concrete masonry bearing walls.
Lateral Force Resisting SystemConcrete masonry shear walls (2 on either side of center hallway) with precast slab diaphragms.
Foundation TypeConcrete mat foundation.