1999 Chi-Chi, Taiwan-03, TCU076

Ground motion information:

NGA Record Sequence Number 2627

Magnitude = 6.2
Closest Distance = 14.7 km
Hypocentral Distance = 22.22 km
Vs30 = 615 m/s
Mechanism = Reverse-oblique

T_p = 0.92 s
PGV = 61.5 cm/s

Orientation of strongest pulse, relative to north = 280 degrees
Orientation of strongest pulse, relative to fault parallel = 80 degrees
Pulse in fault normal direction = 1
Pulse due to directivity = 0

Comments:

Borderline

Directivity parameters:

X = 0.45
s = 4.5 km
θ = 58.5

Y = 0.59
d = 6.46 km
φ = 13.8

IDP = 1.61
Rowshandel parameter = 0.38