2008 Wenchuan, China, Mianzuqingping

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 4816

Magnitude = 7.9
Closest Distance = 6.6 km
Hypocentral Distance = 90.3 km
Vs30 = 425 m/s
Mechanism = Reverse-oblique

T_p = 9.37 s
PGV = 144.5 cm/s

Orientation of strongest pulse, relative to north = 295 degrees
Orientation of strongest pulse, relative to fault parallel = 67 degrees
Pulse in fault normal direction = 1
Pulse due to directivity = 1

Comments:

no comment

Directivity parameters:

X = 0.3
s = 89.7 km
θ = 1.8

Y = 0.22
d = 9.54 km
φ = 32.5

IDP = 1.84
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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