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Earth, Planets and Space

Table 2 Displacements with respect to the Okhotsk plate from the fitted curves with variance-covariance information

From: Co- and postseismic slip behaviors extracted from decadal seafloor geodesy after the 2011 Tohoku-oki earthquake

Site

Displacement rate (cm/year)

Variance–covariance ((cm/year)2)

E-ward

N-ward

U-ward

V(E,E)

V(E,N)

V(N,N)

V(U,U)

(a) Average velocity before 2011

 KAMN

− 3.5

0.4

0.1

0.40

0.12

0.67

2.61

 KAMS

− 2.4

− 1.8

0.7

2.29

− 1.01

1.71

2.10

 MYGI

− 4.1

2.4

− 2.0

0.24

− 0.03

0.50

0.93

 MYGW

− 4.5

1.2

− 0.2

0.22

− 0.19

0.23

2.06

 FUKU

− 1.8

− 1.3

− 2.0

0.30

0.17

1.15

3.15

Site

Displacement (cm)

Variance–covariance (cm2)

E-ward

N-ward

U-ward

V(E,E)

V(E,N)

V(N,N)

V(U,U)

(b) Three-year cumulative displacement from Apr. 2011 to Apr. 2014

 KAMN

− 4.0

3.6

− 21.5

4.76

3.98

− 1.45

11.24

 KAMS

− 32.6

14.9

− 16.1

18.22

12.28

− 6.08

16.05

 MYGI

− 28.2

8.4

− 21.4

5.35

4.99

0.46

7.34

 MYGW

7.8

− 14.8

− 32.5

2.73

3.11

0.57

7.29

 FUKU

60.4

− 41.9

− 42.1

3.56

5.00

− 1.59

8.34

 CHOS

59.8

− 26.1

5.3

7.60

24.06

3.73

27.44

(c) Three-year cumulative displacement from Apr. 2014 to Apr. 2017

 KAMN

− 17.0

4.4

− 5.6

0.78

0.65

− 0.24

1.84

 KAMS

− 22.0

6.8

− 7.0

2.56

1.73

− 0.86

2.26

 MYGI

− 20.1

7.6

− 10.6

1.22

1.14

0.11

1.68

 MYGW

− 3.3

− 2.2

− 8.6

0.61

0.70

0.13

1.63

 FUKU

5.7

− 6.8

− 15.5

0.61

0.86

− 0.27

1.44

 CHOS

1.5

− 1.0

0.3

0.61

1.92

0.30

2.19

 G08

− 25.5

10.5

− 3.7

10.39

6.56

− 5.44

15.66

 G10

− 28.0

13.2

− 4.9

6.41

19.65

− 1.75

17.88

 G12

− 38.7

17.1

− 7.0

10.36

14.54

− 2.31

14.64

 G14

− 21.2

7.4

− 12.2

1.58

1.96

− 0.94

3.55

 G17

6.7

− 10.4

− 0.5

23.65

9.54

2.44

57.68

(d) Three-year cumulative displacement from Apr. 2017 to Apr. 2020

 KAMN

− 20.5

5.3

− 3.7

1.61

1.35

− 0.49

3.80

 KAMS

− 22.3

8.1

− 6.5

4.78

3.22

− 1.59

4.21

 MYGI

− 20.7

7.4

− 8.8

2.49

2.32

0.21

3.42

 MYGW

− 7.2

− 0.4

− 6.1

1.24

1.42

0.26

3.32

 FUKU

− 0.1

− 1.1

− 12.4

1.20

1.70

− 0.54

2.82

 CHOS

− 2.2

2.0

− 2.0

1.00

3.15

0.49

3.60

 G08

− 18.5

10.8

4.0

15.90

10.03

− 8.33

23.96

 G10

− 26.0

17.5

0.5

13.18

40.40

− 3.59

36.77

 G12

− 28.4

19.3

6.2

19.49

27.35

− 4.34

27.54

 G14

− 18.2

7.7

− 6.1

2.45

3.02

− 1.46

5.49

 G17

− 3.6

− 4.2

15.4

46.94

18.92

4.84

114.47

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