Table 1: Maximum PGA and PRA recorded by individual sensors.

SensorMax. acceleration in X-direction (g)Max. acceleration in Y-direction (g)

Free field

10 (PGA)0.00740.0138

Building A

6 (PGA)0.00590.0093
7 (PGA)0.00610.0090
3 (PRA)0.0190.040
4 (PRA)0.0210.041

Building B

8 (PGA)0.00710.0071
9 (PGA)0.00700.0076
1 (PRA)0.0250.025
2 (PRA)0.0300.025