2007 Chuetsu-oki, Oguni Nagaoka

Ground motion information:

NGA Record Sequence Number 4874

Magnitude = 6.8
Closest Distance = 20 km
Hypocentral Distance = 29 km
Vs30 = 425 m/s
Mechanism = Reverse-oblique

T_p = 0.8 s
PGV = 80.3 cm/s

Orientation of strongest pulse, relative to north = 306 degrees
Orientation of strongest pulse, relative to fault parallel = 88 degrees
Pulse in fault normal direction = 1
Pulse due to directivity = 0

Comments:

Pulse is late and not very big

Directivity parameters:

X = 0.53
s = 17.08 km
θ = 51.7

Y = 0.51
d = 12.22 km
φ = 58.6

IDP = 0.4
Rowshandel parameter = -0.22