Plate data

Please feel free to download plate configuration data [plate_data.tar.gz] of the Philippine Sea plate and Pacific plate in and around Japan.

plate_data.tar.gz [331 KB]

How to cite

Please specify a source article corresponding to the area precisely when you used this data of plate configuration as follows:

Hokkaido - Tohoku districts:
Kita et al. (2010, EPSL); Nakajima and Hasegawa (2006, GRL)

Southern Tohoku - Kanto districts:
Nakajima and Hasegawa (2006, GRL); Hirose et al. (2008, Zisin2); Nakajima et al. (2009, JGR)

Southwestern Japan:
Baba et al. (2002, PEPI); Nakajima and Hasegawa (2007, JGR); Hirose et al. (2008, JGR)

Drawing procedure

By downloading & decompressing data file (plate_data.tar.gz), "plate_data" folder is made.
By using "contour_map_PHS.gmt" in the folder, depth contours of the Philippine Sea slab (contour_map_PHS.ps, PHS) is illustrated. (*)
By using "contour_map_PAC.gmt" in the folder, depth contours of the Pacific slab (contour_map_PAC.ps, PAC) is illustrated. (*)
*: Generic Mapping Tools (GMT) should have been installed in your PC.

Composition of plate data files

Pacific plate

[PAC]: Hokkaido - northern Tohoku districts^{[Kita et al. (2010, EPSL)]}
　　　　 Northern - southern Tohoku^{[Nakajima and Hasegawa (2006, GRL)]}
　　　　 Kanto district - northern Izu arc^{[Nakajima et al. (2009, JGR)]}

*Note: Depth contours in the Pacific plate are illustrated by using GMT's interpolation command because data are composed every 0.2 degrees in latitude and longitude.

Philippine Sea plate

[sw]: southwestern Japan^{[Hirose et al. (2008, JGR)]}
*: Depth contour of 20 km near the Kii peninsula of^{[Hirose et al. (2007, Zisin2)]} is revised.

[kanto]: Kanto district^{[Hirose et al. (2008a, Zisin2)]}

[izu3]: northern area of Izu island^{[Nakajima et al. (2009, JGR)]}

[nakajima]: deeper part of the Philippine Sea slab^{[Nakajima and Hasegawa (2007, JGR)]}

[baba]: depth contour of 10 km along the Nankai trough^{[Baba et al. (2002, PEPI)]}

References

Baba, T., Y. Tanioka, P. R. Cummins, and K. Uhira (2002), The slip distribution of the 1946 Nankai earthquake estimated from tsunami inversion using a new plate model, Phys. Earth Planet. Inter., 132, 59-73.
Hirose, F., J. Nakajima, and A. Hasegawa (2007), Three-dimensional velocity structure in southwestern Japan and configuration of the Philippine Sea slab estimated by double-difference tomography, J. Seism. Soc. Jpn., 2, 60, 1-20. (in Japanese with English abstract)
Hirose, F., J. Nakajima, and A. Hasegawa (2008a), Three-dimensional velocity structure and configuration of the Philippine Sea slab beneath Kanto district, central Japan, estimated by double-difference tomography, J. Seism. Soc. Jpn., 2, 60, 123-138. (in Japanese with English abstract)
Hirose, F., J. Nakajima, and A. Hasegawa (2008b), Three-dimensional seismic velocity structure and configuration of the Philippine Sea slab in southwestern Japan estimated by double-difference tomography, J. Geophys. Res., 113, B09315, doi:10.1029/2007JB005274.
Kita, S., T. Okada, A. Hasegawa, J. Nakajima, and T. Matsuzawa (2010), Anomalous deepening of a seismic belt in the upper-plane of the double seismic zone in the Pacific slab beneath the Hokkaido corner: Possible evidence for thermal shielding caused by subducted forearc crust materials, Earth Planet. Science Lett., 290, 415-426.
Nakajima, J., and A. Hasegawa (2006), Anomalous low-velocity zone and linear alignment of seismicity along it in the subducted Pacific slab beneath Kanto, Japan: Reactivation of subducted fracture zone?, Geophys. Res. Lett., 33, L16309, doi: 10.1029/2006GL026773.
Nakajima, J., and A. Hasegawa (2007), Subduction of the Philippine Sea plate beneath southwestern Japan: Slab geometry and its relationship to arc magmatism, J. Geophys. Res., 112, B08306, doi:10.1029/2006JB004770.
Nakajima, J., F. Hirose, and A. Hasegawa (2009), Seismotectonics beneath the Tokyo metropolitan area, Japan: Effect of slab-slab contact and overlap on seismicity, J. Geophys. Res., 114, B08309, doi:10.1029/2008JB006101.