1999 Chi-Chi, Taiwan, TCU031

Ground motion information:

NGA Record Sequence Number 1477

Magnitude = 7.6
Closest Distance = 30.2 km
Hypocentral Distance = 80.49 km
Vs30 = 476 m/s
Mechanism = Reverse-oblique

T_p = 5.93 s
PGV = 63.3 cm/s

Orientation of strongest pulse, relative to north = 123 degrees
Orientation of strongest pulse, relative to fault parallel = 87 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 = 34.4

Y = 0.4
d = 14.8 km
φ = 17.3

IDP = 3.29
Rowshandel parameter = 0.33