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Table 1 Fault parameters of the 1854 CE Ansei–Tokai and Ansei–Nankai earthquakes (An’naka et al. 2003)

From: Time difference between the 1854 CE Ansei–Tokai and Ansei–Nankai earthquakes estimated from distant tsunami waveforms on the west coast of North America

Subfault no.

Length (km)

Width (km)

Depth (km)

Strike (deg)

Dip (deg)

Rake (deg)

Slip (m)

Latitude (deg N)

Longitude (deg E)

Ansei–Tokai earthquake

 N1

120

50

6.4

193

20

71

5.27

35.120

138.706

 N2

205

100

4.1

246

10

113

5.50

33.823

138.235

Ansei–Nankai earthquake

 N3

155

100

7.8

251

12

113

4.80

33.006

136.074

 N4

125

120

10.1

250

8

113

8.70

32.614

134.481