1994 Northridge-01, LA - Saturn St

Ground motion information:

NGA Record Sequence Number 1003

Magnitude = 6.7
Closest Distance = 27 km
Hypocentral Distance = 30.95 km
Vs30 = 309 m/s
Mechanism = Reverse-oblique

T_p = 0.98 s
PGV = 41.6 cm/s

Orientation of strongest pulse, relative to north = 87 degrees
Orientation of strongest pulse, relative to fault parallel = 35 degrees
Pulse in fault normal direction = 0
Pulse due to directivity = 0

Comments:

Rupture geometry and timing of pulse suggest that it's not directivity

Directivity parameters:

X = 0.22
s = 3.88 km
θ = 12.1

Y = 0.3
d = 7.16 km
φ = 67

IDP = 0.49
Rowshandel parameter = -0.3