Information for Strong-Motion Station
Fortuna - 1-story Supermarket Bldg.
CGS - CSMIP Station 89473
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 40.5843 N
Longitude 124.1445 W
Elevation (m) 21
Site Geology Shallow alluvium over rock
Vs30 (m/sec) 457 (measured)
Site Class C
Remarks/Notes Site information sources
No. of Stories above/below ground1/0
Plan ShapeRectangle with extension for loading dock
Base Dimensions222' x 202'
Typical Floor DimensionsSame as base dimensions
Design Date1979
Instrumentation1984. 12 accelerometers, on 3 levels in the building. 3 accelerometers at a reference free-field site.
Vertical Load Carrying SystemPlywood Roof Sheething, Wood Joist, Glulam Beams, Steel Pipe Columns and Block Masonry Walls
Lateral Force Resisting SystemPlywood Roof Diaphragm and block Masonry Shear Walls
Foundation TypeSpread footings