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DUHJLYHQE\+XUXNDZD   
Magnitude
6

7

Magnitude

Depth

8

0

15

30

5

45

6

7

8

Magnitude

Depth
0

15

30

5

45

6

7

8

d) Outer Rise, Mw 7.6
Magnitude

Depth
0

15

30

5

45

C
A

B

MS

146°E

0 A
B
50
100
150
-200 -100 0 100 200 300
Distance (km)Depth (km)Depth (km)

144°E

0 A
20
40
60
80
-100

30

45

143°E

0
50
Distance (km)

B
D

B
D

37°N

35°N

140°E
B

-50

36°N

JT

JT
JT
142°E

15

38°N A

D

100

Depth (km)

38°N

142°E
140°E

0

C

Ibaraki

38°N

36°N

Depth

8

39°N

A

B
D

7

37°N
C

C
A

6

JT

Fukushima
39°N
40°N

141°E

143°E

142°E

B
0 A
20
40
60
80
100
-150 -100 -50 0
50 100 150
Distance (km)Depth (km)5c) Off Ibaraki, Mw 7.9b) Foreshock, Mw 7.5a) Mainshock, Mw 9.1

144°E

145°E

146°E

B
0 A
20
40
60
80
100
-150 -100 -50 0
50 100 150
Distance (km)
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