Figure 3
(a) Calculated temperature (°C) at the upper surface of the PHS plate for the best-fit model to the observed heat flow data, as viewed from the top. The orange-shaded rectangular areas denote the fault planes of S-SSEs2 during the period from 1 January 1997 to 10 November 2013. The white-solid squares denote epicentres of LFEs3 during the period from 1 April 2004 to 31 December 2016. The black solid lines denote isothermal contours on the upper surface of the PHS plate. (b) Estimated water-content (wt%) distribution obtained using the phase diagram of the hydrous MORB at the surface of the PHS plate for the best-fit model. The others are the same as in (a). (c) Estimated water-content (wt%) distribution obtained using the phase diagram of hydrous ultramafic rock at a depth of 5 km above the surface of the PHS plate for the best-fit model. The others are the same as in (a).
