A destructive earthquake and tsunami occurred in the Kuril Islands on 4 October 1994 - see Earth System Monitor, 5(4), June 1995.
Documentation added 2012-02-22
A massive earthquake magnitude 9.0 occurred at 14.46 JST (05.46 UTC) on Friday 11th March 2011 with the epicentre situated approx. 70km east of the Oshika Peninsula of Tohoku. It was the largest earthquake ever to hit Japan and triggered a tsunami with waves of up to 40.5m high and travelling inland up to 10km.
Geographical Survey Institute Kitasato -1 Tsukuba-shi Ibaraki-ken 305