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Table 3 Short-term slow slip events estimated from geodetic data and their corresponding ETS numbers

From: Cascading rupture of patches of high seismic energy release controls the growth process of episodic tremor and slip events

Date (yyyymmddhh)

Duration (hour)

Latitude (°)

Longitude (°)

Depth (km)

Length (km)

Width (km)

Strike (°)

Dip (°)

Rake (°)

Slip (mm)

Seismic moment (Nm)

Mw

References

ETS No

2011062800

84

34.71

136.77

28

75

15

225

14

90

20

9.0 × 1017

5.9

Itaba et al. (2012)

02

2011062800

48

34.64

136.72

23

45

30

229

17

104

7.1

3.9 × 1017

5.7

Hirose and Kimura (2012)

02

2011091200

84

34.52

136.48

24

67

40

200

19

65

5

5.4 × 1017

5.8

Itaba et al. (2012)

03

2011091200

120

34.38

136.61

29

70

31

240

20

114

13.1

1.1 × 1018

6.0

Hirose and Kimura (2012)

03

2011121900

24

34.79

136.78

29

70

20

220

13

95

4

2.2 × 1017

5.5

Kitagawa et al. (2012)

04

2012020912

36

34.58

136.41

27

55

35

201

19

76

5

3.6 × 1017

5.6

Kitagawa et al. (2012)

05

2012041412

48

34.69

136.72

27

65

40

216

14

91

3

3.1 × 1017

5.6

Kitagawa et al. (2012)

06

2012051500

48

34.96

136.78

28

47

21

201

12

76

17

6.7 × 1017

5.8

Itaba et al. (2013a)

07

2012051700

96

34.95

137.08

22

43

43

195

12

70

6

4.4 × 1017

5.7

Itaba et al. (2013a)

07*

2012052100

48

34.78

137.24

21

49

48

244

13

119

2

1.9 × 1017

5.5

Itaba et al. (2013a)

07*

2012060800

96

34.27

136.02

36

50

10

221

23

96

29

5.8 × 1017

5.8

Itaba et al. (2013a)

08*

2012061200

72

34.31

136.11

31

26

21

198

21

73

10

2.2 × 1017

5.5

Itaba et al. (2013a)

08

2012081200

60

34.48

136.39

29

23

17

210

15

85

24

3.8 × 1017

5.7

Itaba et al. (2013a)

09

2012100200

60

34.71

136.94

25

61

31

218

12

93

5

3.9 × 1017

5.7

Itaba et al. (2013a)

10

2012121700

48

34.16

136.24

27

19

14

214

20

89

11

1.2 × 1017

5.3

Itaba et al. (2013b)

13*

2013040700

72

34.96

136.94

26

83

39

204

13

79

8

1.0 × 1018

6.0

Itaba et al. (2013b)

14

2013041000

108

34.90

136.96

27

9

11

248

13

123

45

1.8 × 1017

5.4

Itaba et al. (2013b)

14*

2013072312

72

34.47

136.40

25

52

35

200

19

75

8

5.8 × 1017

5.8

Itaba et al. (2014a)

15

2013090800

72

34.93

137.00

25

82

45

204

13

79

4

5.9 × 1017

5.8

Itaba et al. (2014a)

16

201010900

60

34.45

136.39

29

18

19

210

15

85

23

3.2 × 1017

5.6

Itaba et al. (2014b)

17

2014011112

60

34.52

136.43

25

63

35

200

19

75

4

3.5 × 1017

5.6

Itaba et al. (2014b)

17

201012300

48

34.97

136.96

24

41

42

192

12

67

10

6.9 × 1017

5.8

Itaba et al. (2014b)

18

2,014,070,300

48

34.90

136.68

30

34

10

197

12

72

12

1.6 × 1017

5.4

Itaba et al. (2015)

20

2014070500

48

34.69

136.68

29

15

15

211

11

86

38

3.4 × 1017

5.6

Itaba et al. (2015)

20

201407000

48

34.70

136.65

30

57

15

225

14

100

70

2.4 × 1017

5.5

Itaba et al. (2015)

20

2014070900

48

34.44

136.62

23

45

51

206

16

81

6

5.5 × 1017

5.8

Itaba et al. (2015)

20

2014071100

48

34.16

136.38

25

25

32

219

19

94

13

4.2 × 1017

5.7

Itaba et al. (2015)

20

2014071300

48

34.15

136.02

32

13

27

212

22

87

34

4.8 × 1017

5.7

Itaba et al. (2015)

20*

  1. Geodetic data consisted of strainmeter, tiltmeter, and groundwater pressure records collected by GSJ and NIED. Seismic moments were calculated using a rigidity of 40 GPa. Asterisks denote SSEs outside the ETS periods determined in this study (Table 2); most SSEs are included within the semblance analysis periods (Table 1). Fault models for ETS 2 and ETS 3 were estimated independently by GSJ and NIED