Please note: In many cases, the station position in our database is accurate
to only one minute. Thus, the tide gauge may not appear to be on the coast.
Miyako II 642/012 RLR(1976) is 10.1m below Attached BM
Documentation added 2012-02-22
A massive earthquake magnitude 9.0 occurred at 14.46 JST (05.46 UTC) on Friday 11th March 2011 the epicentre was approx. 70km east of the Oshika Peninsula of Tohoku. The earthquake was the most powerful to hit Japan triggering a tsunami with waves of up to 40.5m high and travelling up to 10km inland.
Data Authority
Marine Department Japan Meteorological Agency Ote-machi, Chiyoda-ku Tokyo