2008 Iwate, IWTH26

Ground motion information:

NGA Record Sequence Number 5658

Magnitude = 6.9
Closest Distance = 6 km
Hypocentral Distance = 14.43 km
Vs30 = 371 m/s
Mechanism = Reverse-oblique

T_p = 4 s
PGV = 56.9 cm/s

Orientation of strongest pulse, relative to north = 9 degrees
Orientation of strongest pulse, relative to fault parallel = 20 degrees
Pulse in fault normal direction = 0
Pulse due to directivity = 0

Comments:

Not sure

Directivity parameters:

X = 0.02
s = 0.61 km
θ = 87.3

Y = 0.5
d = 9 km
φ = 13.2

IDP = 1.89
Rowshandel parameter = 0.05