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.
Wakayama 643/015 RLR(1976) is 8.8m below Attached BM
Documentation added 1993-07-12
Wakayama 643/015 RLR(1976) is 8.8m below Attached BM
Documentation added 2002-03-26
Wakayama replaced by new gauge on same site July 1980.
Documentation added 2003-11-20
Datum 1996 is 1.037m below Tokyo Peil. Datum 1998 is 1.042m below Tokyo Peil.
Documentation added 2011-02-24
Sea level profile compares well with that for Kainan.
Documentation added 2012-02-21
A massive earthquake magnitude 9.0 occurred at 14.46 JST (05.46 UTC) on Friday 11th March 2011 with epicentre approx. 70 km 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.
Data Authority
Marine Department Japan Meteorological Agency Ote-machi, Chiyoda-ku Tokyo