1999 Chi-Chi, Taiwan, TCU046

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 1486

Magnitude = 7.6
Closest Distance = 16.7 km
Hypocentral Distance = 69.35 km
Vs30 = 466 m/s
Mechanism = Reverse-oblique

T_p = 8.04 s
PGV = 31.3 cm/s

Orientation of strongest pulse, relative to north = 112 degrees
Orientation of strongest pulse, relative to fault parallel = 76 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 = 24.4

Y = 0.4
d = 14.66 km
φ = 5.4

IDP = 2.98
Rowshandel parameter = 0.32

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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