1999 Chi-Chi, Taiwan, TCU128

Ground motion information:

NGA Record Sequence Number 1548

Magnitude = 7.6
Closest Distance = 13.1 km
Hypocentral Distance = 63.8 km
Vs30 = 600 m/s
Mechanism = Reverse-oblique

T_p = 9.02 s
PGV = 60.7 cm/s

Orientation of strongest pulse, relative to north = 84 degrees
Orientation of strongest pulse, relative to fault parallel = 48 degrees
Pulse in fault normal direction = 1
Pulse due to directivity = 1

Comments:

no comment

Directivity parameters:

X = 0.56
s = 50.72 km
θ = 34.6

Y = 0.4
d = 14.8 km
φ = 11.9

IDP = 3.25
Rowshandel parameter = 0.32