Station Information

Station ID: 1191
Latitude: 35.129444
Longitude: 140.249444
Coastline code: 642
Station code: 55
Country: JAPAN
Time span of data: 1967 – 2023
Completeness (%): 97
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: P107

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Katsuura 642/055 RLR(1975) is 9.5m below BM Attach-20

Documentation added 2012-02-22

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 earthquake ever to hit Japan triggering a tsunami with waves up to 40.5m high and travelling up to 10km inland.

Documentation added 2014-03-13

The GPS benchmark information has been downloaded from the SONEL website. GPS benchmark is P107 13.164m above RLR.

Data Authority

Geographical Survey Institute
Kitasato -1
Ibaraki-ken 305