The EMSC data on the quake and my analysis:
Briefly, the World’s dams applied a surge of 448287 terawatts at the location of the quake, equivalent to a great earthquke seismic moment magnitude of 8.57 MM. The produced earthquake was only 6.2 MM(6.8 MM according to the enenews report sources). Thus the difference in energy is being released in other ways like the dynamics of more earthquakes due to this dam surge dynamics which continues as water consumption needs are being constantly met by the big instantaneous cumulative dam(reservoir) content changes of the world’s dams. Note that the combined electrical power capacity of the world is no more than just 6 terawatts!
Note that the dams are the root cause of the US snowstorms, the extremes of rain now in Kerala/Tamilnadu because of the 2014 NE monsoon, the 6 MM earthquake in West Sichuan which killed a person and injured many and other daily destructive hits on the infrastructure of modern civilization and by modern civilization’s designs which display glaring lacunae in meeting their goals.
See this news report of the Japan quake:
And the China quake: