Station Information

Station ID: 407
Latitude: 35.017222
Longitude: 138.890278
Coastline code: 642
Station code: 118
Country: JAPAN
Time span of RLR data: 1944 – 2023
RLR completeness (%): 99
Time span of metric data: 1937 – 2023
Metric 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

Uchiura 642/118 RLR(1974) is 8.3m below Attached BM

Documentation added 1993-07-12

Uchiura 642/118 RLR(1974) is 8.3m below Attached BM
Where there are two benchmarks with the same name the later one is marked
with a suffix. RLR (1974) is now 9.262m below Attached BM (i)

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 epicenter approx. 70km east of the Oshika Peinisula
Tohoku. It was the most powerful known earthquake ever to hit Japan and
triggered a tsunami with waves up to 40.5m travelling up to 10km inland.

Data Authority

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