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.
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
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 TÅhoku 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
Marine Department Japan Meteorological Agency Ote-machi, Chiyoda-ku Tokyo