Information for Strong-Motion Station
Eureka - 5-story Residential Bldg.
CGS - CSMIP Station 89494
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 40.8022 N
Longitude 124.1478 W
Elevation (m) 7
Site Geology Deep alluvium
Vs30 (m/sec) 337 (inferred)
Site Class D
Remarks/Notes Site information sources
No. of Stories above/below ground5/0
Plan Shape2 Adjoining Rectangular Bldgs.
Base Dimensions55' x 180' (each bldg.)
Typical Floor DimensionsSame as base dimensions
Design Date1979
Instrumentation1985. 13 accelerometers, on 3 levels in the building. 3 accelerometers at a reference free-field site.
Vertical Load Carrying SystemReinforced concrete floor and Roof slabs on Metal forms supported on Reinforced block Masonry Bearing Walls
Lateral Force Resisting SystemReinforced Concrete floor and Roof Diaphrams with Multiple, Well Distributed Reinforced Block Masonry Shear Walls
Foundation TypeSpread footings