Station Information

Station ID: 817
Latitude: 34.338889
Longitude: 135.178056
Coastline code: 643
Station code: 17
Country: JAPAN
Time span of data: 1957 – 2016
Completeness (%): 96
Frequency Code: 24
Date of last update: 08 Feb 2017

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station

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.

Station Documentation

Link to RLR information.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Tan-nowa 643/017 RLR(1976) is 9.1m below Attached BM
=========================== BENCHMARK INFORMATION UPDATE ADDED 12-JUL-93 :
Tan-nowa 643/017 RLR(1976) is 9.1m below Attached BM
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 2003Nov20 :
Datum 1998 is 1.848m below Tokyo Peil.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Feb-2011 :
Buddy checked with both Sumoto and Osaka compares well.
=========================== 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 epicentre 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.

Data Authority

Marine Department
Japan Meteorological Agency
Ote-machi, Chiyoda-ku