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Table 1. Comparison of the shear-wave splitting results between before and after the Tohoku Earthquake. The averaged and standard deviation (S.D.) data of the polarization direction (ϕ) and time-lag (τ) are shown.

From: Shear-wave splitting in a region with newly-activated seismicity after the 2011 Tohoku earthquake

  

Before the 2011 Tohoku Earthquake

After the 2011 Tohoku Earthquake

Station Name

Number

ϕ (deg.)

S.D. ϕ (deg.)

τ (sec)

S.D. ϕ (sec)

Number

ϕ(deg.)

S.D. ϕ (deg.)

τ (sec)

S.D. τ (sec)

IWAKMZ

15

41.6

53.1

0.051

0.036

171

51.7

40.1

0.049

0.041

N.IWWH

10

10.5

25.6

0.071

0.058

181

19.7

37.0

0.047

0.033

N.JUOH

1

167.0

0.060

105

57.3

33.9

0.045

0.026

N.KIBH

4

52.3

15.3

0.073

0.011

212

42.1

29.5

0.026

0.015