Bending-Related Topographic Structures of the Subducting Plate in the Northwestern Pacific Ocean - Accretionary Prisms and Convergent Margin Tectonics in the Northwest Pacific Basin - page 23

142°E 143°E 144°E 145°E

38°N 38°N

FT

37°N 37°N

IW

HT

K4

K3

KT

K2

36°N 36°N

K1 K5

KFZ

35°N 35°N

142°E 143°E 144°E 145°E

Fig. 15 Distribution of bending-related topographic structures in the southern Japan Trench.
Dotted lines represent the topographic structures related to the Kashima Fracture Zone. FT
Futaba Seamount, IW Iwaki Seamount, HT Hitachi Seamount, KT Katori Seamount, K1 Daiichi-
Kashima Seamount, K2 Daini-Kashima Seamount, K3 Daisan-Kashima Seamount, K4 Daiyon-
Kashima Seamount, K5 Daigo-Kashima Seamount. Other conventions are identical to Fig. 9

Daiichi-Kashima Seamount subducting in the Japan Trench at 36°N. The Mogi
Seamount is divided into several portions by escarpments.
Seta et al. ( 1991 ) and Kato ( 1991 ) reported elongated escarpments on the outer
slope of the Izu-Ogasawara Trench from bathymetric surveys using the multibeam
echo-sounder “classic” SeaBeam system. They indicated that most of escarpments