2004 Parkfield-02, CA, Parkfield - Fault Zone 1

Ground motion information:

NGA Record Sequence Number 4107

Magnitude = 6
Closest Distance = 2.5 km
Hypocentral Distance = 11.67 km
Vs30 = 178 m/s
Mechanism = Strike slip

T_p = 1.19 s
PGV = 81.9 cm/s

Orientation of strongest pulse, relative to north = 13 degrees
Orientation of strongest pulse, relative to fault parallel = 52 degrees
Pulse in fault normal direction = 1
Pulse due to directivity = 1

Comments:

no comment

Directivity parameters:

X = 0.21
s = 8.4 km
θ = 0.4

Y = 0.7
d = 5.6 km
φ = 1.4

IDP = 1.65
Rowshandel parameter = -0.58