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Progress in Earth and Planetary Science
Figure 5 | Progress in Earth and Planetary Science

Figure 5

From: Heterogeneous interplate coupling along the Nankai Trough, Japan, detected by GPS-acoustic seafloor geodetic observation

Figure 5

Horizontal velocity vectors detected by seafloor geodetic observations at six seafloor sites. Seafloor velocity vectors are shown by red arrows. Red ellipses indicate the 2-sigma errors. Light blue arrows indicate the seafloor geodetic observations by Nagoya University (Tadokoro et al. 2012). The onshore velocity vectors are calculated for the period from March 2006 to February 2011 using GEONET stations. They are shown as black arrows. Yellow arrows indicate the convergence rate of the Philippine Sea plate under the Eurasian plate (DeMets et al. 1994). The purple region shows the maximum source model of the Nankai Trough great earthquake assumed by the CDMC (2013). The orange region is the source model of the future Tokai earthquake assumed by the CDMC (2013). The blue and green contour lines are coseismic slip distributions associated with the 1944 Tonankai and 1946 Nankaido earthquakes, respectively, obtained by tsunami inversion analyses (Baba and Cummins 2005).

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