1971 San Fernando, Pacoima Dam (upper left abut)

Ground motion information:

NGA Record Sequence Number 77

Magnitude = 6.6
Closest Distance = 1.8 km
Hypocentral Distance = 17.6 km
Vs30 = 2016 m/s
Mechanism = Reverse-oblique

T_p = 1.64 s
PGV = 121.9 cm/s

Orientation of strongest pulse, relative to north = 189 degrees
Orientation of strongest pulse, relative to fault parallel = 84 degrees
Pulse in fault normal direction = 1
Pulse due to directivity = 1

Comments:

no comment

Directivity parameters:

X = 0.25
s = 4.02 km
θ = 63.4

Y = 0.8
d = 21.88 km
φ = 7.5

IDP = 2.03
Rowshandel parameter = 0.42