1999 Chi-Chi, Taiwan, TCU040

Plots of original ground motion, extracted pulse, and residual ground motion:

Map of epicenter, rupture extent and station location:

Ground motion information:

NGA Record Sequence Number 1483

Magnitude = 7.6
Closest Distance = 22.1 km
Hypocentral Distance = 69.51 km
Vs30 = 362 m/s
Mechanism = Reverse-oblique

T_p = 6.43 s
PGV = 47.6 cm/s

Orientation of strongest pulse, relative to north = 162 degrees
Orientation of strongest pulse, relative to fault parallel = 25 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 = 43.3

Y = 0.4
d = 14.8 km
φ = 17.7

IDP = 3.16
Rowshandel parameter = 0.31

Notes:

These results were computed November 1st, 2012
These results are based on the June 2012 version of the NGA West 2 database
If you have any observations, comments or requests regarding this data, please e-mail Jack Baker and Shrey Shahi

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