=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Kuchinotsu          645/062 RLR(1976) is 19.2m below Attached BM 4306 Attached BM replaced the previous benchmark during 1980
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 22-Feb-2012
A massive earthquake mgnitude 9.0 occurred at 14.46 JST (05.46 UTC) on Friday 11th March 2011 woth the epicentre situated approx. 70km east of the Oshika Peninsula of Tohoku. The earthquake was the largest ever to strike Japan and triggered a tsunami with waves of up to 40.5m travelling inland up to 10km.