1999 Chi-Chi, Taiwan, CHY006

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 1182

Magnitude = 7.6
Closest Distance = 9.8 km
Hypocentral Distance = 41.26 km
Vs30 = 438 m/s
Mechanism = Reverse-oblique

T_p = 2.57 s
PGV = 58.3 cm/s

Orientation of strongest pulse, relative to north = 291 degrees
Orientation of strongest pulse, relative to fault parallel = 89 degrees
Pulse in fault normal direction = 1
Pulse due to directivity = 1

Comments:

no comment

Directivity parameters:

X = 0.38
s = 35.04 km
θ = 41.3

Y = 0.24
d = 8.83 km
φ = 0.1

IDP = 0.71
Rowshandel parameter = -0.22

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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