Station Information

Station ID: 808
Latitude: 35.011667
Longitude: 138.5175
Coastline code: 642
Station code: 121
Country: JAPAN
Time span of data: 1957 – 2023
Completeness (%): 99
Date of last update: 04 Mar 2024

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station
Red Marker: Neighbouring Metric 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.

Documentation added 1991-06-11

Shimizu-Minato 642/121 RLR(1975) is 9.3m below Attached BM

Documentation added 2009-05-05

There appears to be a rising trend at this location.

Documentation added 2011-02-23

Buddy checked with Omaezaki II. Profiles compare well.

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 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 travelling up to 10km inland.
Where there is more than one benchmark with the same name a suffix has been added

Data Authority

Japan Meteorological Agency
3-6-9 Toranomon, Minato City