1987 Superstition Hills-02, Poe Road (temp)



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 725

Magnitude = 6.5
Closest Distance = 11.2 km
Hypocentral Distance = 14.37 km
Vs30 = 353 m/s
Mechanism = Strike slip

Tp = 2.87 s
PGV = 42.1 cm/s

Orientation of strongest pulse, relative to north = 319 degrees
Orientation of strongest pulse, relative to fault parallel = 12 degrees
Pulse in fault normal direction = 0
Pulse due to directivity = 0


Comments:

Questionable

Directivity parameters:


X = 0.05
s = 0.97 km
θ = 85

Y = 0.75
d = 9 km
φ = 51.1

IDP = 0.33
Rowshandel parameter = -0.39


Notes:



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