1999 Chi-Chi, Taiwan, TCU104

Ground motion information:

NGA Record Sequence Number 1531

Magnitude = 7.6
Closest Distance = 12.9 km
Hypocentral Distance = 49.93 km
Vs30 = 410 m/s
Mechanism = Reverse-oblique

T_p = 7.19 s
PGV = 56.1 cm/s

Orientation of strongest pulse, relative to north = 34 degrees
Orientation of strongest pulse, relative to fault parallel = 26 degrees
Pulse in fault normal direction = 0
Pulse due to directivity = 1

Comments:

no comment

Directivity parameters:

X = 0.38
s = 34.61 km
θ = 42.8

Y = 0.4
d = 14.8 km
φ = 16.5

IDP = 2.82
Rowshandel parameter = 0.17