Information for Strong-Motion Station
Riverside - 7-story County Jail
CGS - CSMIP Station 13702
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 33.9788 N
Longitude 117.3745 W
Elevation (m) 259
Site Geology Deep alluvium over rock (granitic)
Vs30 (m/sec) - -
Site Class D
Remarks Site information sources
No. of Stories above/below ground7/1
Plan ShapeIrregular
Base Dimensions201' x 291'
Typical Floor DimensionsOctagonal 92' x 202'
Design Date1984
Instrumentation1996. 9 accelerometers, on 3 levels in the building.
Vertical Load Carrying System3.5" lightweight concrete over 3" metal deck supported by steel frames.
Lateral Force Resisting SystemFour double-bay diagonal braced steel frames at the perimeter of the building. Concrete shear walls in the basement.
Foundation Type18" and 24" diameter drilled cast-in-place concrete friction piles.
RemarksBuilding was designed as per the provisions of the 1982 Uniform Building Code.