2007 Chuetsu-oki, Yoshikawaku Joetsu City

Ground motion information:

NGA Record Sequence Number 4850

Magnitude = 6.8
Closest Distance = 16.9 km
Hypocentral Distance = 40.93 km
Vs30 = 425 m/s
Mechanism = Reverse-oblique

T_p = 1.33 s
PGV = 63.8 cm/s

Orientation of strongest pulse, relative to north = 52 degrees
Orientation of strongest pulse, relative to fault parallel = 18 degrees
Pulse in fault normal direction = 0
Pulse due to directivity = 0

Comments:

The pulse isn't that strong.

Directivity parameters:

X = 0.81
s = 26 km
θ = 6.3

Y = 0.07
d = 1.73 km
φ = 80

IDP = 0.8
Rowshandel parameter = 0.24