1999 Chi-Chi, Taiwan, TCU081

Ground motion information:

NGA Record Sequence Number 1514

Magnitude = 7.6
Closest Distance = 55.5 km
Hypocentral Distance = 107.33 km
Vs30 = 430 m/s
Mechanism = Reverse-oblique

T_p = 9.38 s
PGV = 42.5 cm/s

Orientation of strongest pulse, relative to north = 65 degrees
Orientation of strongest pulse, relative to fault parallel = 29 degrees
Pulse in fault normal direction = 0
Pulse due to directivity = 0

Comments:

Not quite a single pulse. Large distance.

Directivity parameters:

X = 0.62
s = 56.01 km
θ = 28.8

Y = 0.4
d = 14.8 km
φ = 7

IDP = 2.8
Rowshandel parameter = 0.32