1994 Northridge-01, LA - Sepulveda VA Hospital

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 1004

Magnitude = 6.7
Closest Distance = 8.4 km
Hypocentral Distance = 19.45 km
Vs30 = 380 m/s
Mechanism = Reverse-oblique

T_p = 0.93 s
PGV = 77.9 cm/s

Orientation of strongest pulse, relative to north = 271 degrees
Orientation of strongest pulse, relative to fault parallel = 31 degrees
Pulse in fault normal direction = 0
Pulse due to directivity = 1

Comments:

no comment

Directivity parameters:

X = 0.19
s = 3.37 km
θ = 66.6

Y = 0.72
d = 17.21 km
φ = 26

IDP = 0.87
Rowshandel parameter = 0.14

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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