Station Information

Station ID: 1364
Latitude: 39.019722
Longitude: 141.753333
Coastline code: 642
Station code: 22
Country: JAPAN
Time span of data: 1974 – 2023
Completeness (%): 98
Link to ellipsoid: Available
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.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: P205
Nearby Real Time Stations from VLIZ: ofun
Fast Delivery Data from UHSLC station 351: hourly and daily
Research Quality Data from UHSLC station 351: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Ofunato II 642/022 RLR(1976) is 8.6m below Attached BM

Documentation added 2002-03-26

Ofunato II replaced I (642/021) 25th May 1973;

Documentation added 2010-02-11

From the RLR plot a rising trend in the dataset is clearly visible.

Documentation added 2011-02-22

Profile compares well with that for Ayukawa.

Documentation added 2012-02-22

A massive earthquake magnitude 9.0 occurred at 14.46 JST (05.46 UTC) on Friday 11th March 2011 woth the epicentre situated approx. 70km east of the Oshika Peninsula of Tohoku. The earthquake was the largest to strike Japan and triggered a tsunami with waves of up to 40.5m travelling up to 10km inland.

Documentation added 2014-03-13

The GPS benchmark information has been downloaded from the SONEL website. GPS benchmark P205 is 13.696m above RLR.

Documentation added 2022-04-05

Following review of data affected by the Tōhoku earthquake of 2011, all data has been flagged as good as GSI have recommenced levelling at the site. The station flag has been set to indicate the record needs to be treated with care, but the data appears to accurately reflect the earthquake's ongoing effect on local relative sea level.

Data Authority

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