27 ms·(Edit) Japan Meteorological Agency has updated the earthquake to 7.4 magnitude.by huangc10 10y ago(Edit) Japan Meteorological Agency has updated the earthquake to 7.4 magnitude.glandium 10y agoIt has been upgraded to 7.4 according to NHK.wuliwong 10y agoOn that NHK live stream they just now said that it had be upgraded to 7.4.