1999 Chi-Chi, Taiwan, TCU

Ground motion information:

NGA Record Sequence Number 1462

Magnitude = 7.6
Closest Distance = 5.2 km
Hypocentral Distance = 37.07 km
Vs30 = 473 m/s
Mechanism = Reverse-oblique

T_p = 4.51 s
PGV = 43.8 cm/s

Orientation of strongest pulse, relative to north = 56 degrees
Orientation of strongest pulse, relative to fault parallel = 40 degrees
Pulse in fault normal direction = 0
Pulse due to directivity = 1

Comments:

no comment

Directivity parameters:

X = 0.33
s = 29.84 km
θ = 42.8

Y = 0.4
d = 14.8 km
φ = 10.6

IDP = 3.16
Rowshandel parameter = 0.05