Response Spectra Station: El Centro, CA - Array Sta 2 - Keystone Rd Station Owner: United States Geological Survey Station Latitude & Longitude: 32.9160, -115.3660 Earthquake: Imperial Valley Aftershock Hypocentral Distance: 20.4 km Processing Info: NOAA/USGS (Use the back button on your browser to return to the previous page)  Reconfigure Plots: % Damping 0251020 Accleration Units cm/s/s g Max Period (sec) Scale Factor for Data Overlay response spectrum:   None   UBC 1997 Help   Ca   Cv   IBC 2000   or    Ground-motion Help   SDS   SD1   Generic design spectrum Help   Max   Ca   T1   T2   T3  Component: 230 Ground Level  PGA: 81.28 cm/s/s        butterworth at .5 hz, n=4    Component: Up Ground Level  PGA: 47.02 cm/s/s        butterworth at .5 hz, n=4    Component: 140 Ground Level  PGA: -151.14 cm/s/s        butterworth at .5 hz, n=4   Home + Login + Download + About Us + Contact Earthquakes + stations + Search + Map + Advanced Search