Information for Strong-Motion Station
Pleasant Hill - 3-story Commercial Bldg
CGS - CSMIP Station 58348
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 37.9460 N
Longitude 122.0607 W
Elevation (m) 16
Site Geology Alluvium over rock (sandstone)
Vs30 (m/sec) 257 (inferred)
Site Class D
Remarks/Notes Site information sources
No. of Stories above/below ground3/0
Plan ShapeRectangular
Base Dimensions77' x 131'
Typical Floor DimensionsSame as base dimensions
Design Date1972
Instrumentation1979. 12 accelerometers, on 3 levels in the building.
Vertical Load Carrying SystemPlywood sheathing, wood joists, glulam beams, steel columns and concrete columns and walls.
Lateral Force Resisting SystemPlywood diaphragms, concrete shear walls at first and second sories, cantilever concrete columns at third story.
Foundation TypeSpread footings