Table 2. Properties of ground motion records used in the analyses No Earthquake Date Station Component 1 Parkfield 28/6/66 1438 PARKF/ Temblor TMB205 pre-1969 2 Imperial 19/5/40 117 El IMPVALL/ Valley Centro I-ELC180 Array 3 Mammoth 27/5/80 54214 MAMMOTH/ Lakes Long L-LUL090 Valley dam