2007 Chuetsu-oki, Kariwa

Plots of original ground motion, extracted pulse, and residual ground motion:

Map of epicenter, rupture extent and station location:

Ground motion information:

NGA Record Sequence Number 4875

Magnitude = 6.8
Closest Distance = 12 km
Hypocentral Distance = 16.06 km
Vs30 = 210 m/s
Mechanism = Reverse-oblique

T_p = 3.08 s
PGV = 154.5 cm/s

Orientation of strongest pulse, relative to north = 319 degrees
Orientation of strongest pulse, relative to fault parallel = 75 degrees
Pulse in fault normal direction = 1
Pulse due to directivity = 0

Comments:

Similar to 4856. The ringing from 40s to 60s at the pulse period shows site resonance.

Directivity parameters:

X = 0.33
s = 10.59 km
θ = 37.2

Y = 0.05
d = 1.21 km
φ = 84.2

IDP = 0.37
Rowshandel parameter = -0.19

Notes:

These results were computed November 1st, 2012
These results are based on the June 2012 version of the NGA West 2 database
If you have any observations, comments or requests regarding this data, please e-mail Jack Baker and Shrey Shahi

Previous pulse	Back to summary page	Next pulse