This morning at 06h00 I was awakened by the shaking and swaying of the bedroom floor. I do sleep on tatami, so I feel earthquakes directly and immediately. The force was actually 7.3 and since we have helicopters flying above the sky and news of a Tsunami given the depth was as little as 10 kilometres. There is expected a wave as high as 3 metres and if that’s the case it will cause damage: http://www.jma.go.jp/en/tsunami/joho.html or http://www3.nhk.or.jp/nhkworld/en/live/
https://twitter.com/Indian_Handle/status/800829151078797312/video/1