=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Mikuni              647/065 RLR(1972) is 11.2m below BM Attach-21
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 05-May-2009
The data after the gap in 1998 appears to be slightly higher than previously.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 22-Feb-2011
Sea level profile compares well with that for Wajima.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 22-Feb-2012
A massive earthquake magnitude 9.0 occurred at 14.46.JST (05.46 UTC) on Friday 11th March 2011 with the epicentre approx. 70km east of the Oshika peninsula of Tohoku. It was the most powerful earthquake to hit Japan triggering a tsunami with waves up to 40.5m high 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 P112 is 12.737m above RLR.

