=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991 Kushiro 641/021 RLR(1974) is 8.6m below Attached BM =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Aug-1995 A destructive earthquake and tsunami occurred in the Kuril Islands on 4 October 1994 - see Earth System Monitor, 5(4), June 1995. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 20-Feb-1997 February 1997: Kushiro and Kushiro II combined on advice from authority =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 26-Mar-2002 Kushiro new gauge installed December 1982. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 21-Feb-2012 A massive earthquake magnitude 9.0 occurred at 14:46 JST (05:46 UTC) on Friday 11th March 2011 with the epicenter approx. 70km east of the Oshika Peninsula of Tohoku. It was the most powerful known earthquake to hit Japan triggering a tsunami with waves up to 40.5m and travelling up to 10km inland. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 13-Mar-2014 The GPS benchmark information has been downloaded from the SONEL website. GPS benchmark P203 is 13.731m above RLR.