Station Information

Station ID: 752
Latitude: 38.563333
Longitude: 139.545833
Coastline code: 647
Station code: 91
Country: JAPAN
Time span of data: 1955 – 2023
Completeness (%): 92
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: P105

Station Documentation

Link to RLR information.

Documentation - date unknown

Ground depression about 18cm accompanied the Niigata earthquake of June 16,1964

Documentation added 1991-06-11

Nezugaseki 647/091 RLR(1975) is 9.3m below BM Attach-16

Documentation added 2011-02-23

Buddy checked with Awa Sima. Profiles compare well particularly from the 1980's onwards. From May 1980 the benchmark still called Attached-16 but with a height of 8.961m above the datum was used. On the diagram this has been labelled Attach-16 (ii)

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 TTohoku. It was the most powerful known earthquake to hit Japan triggering a tsunami with waves up to 40.5m 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 P105 13.017m above RLR.

Data Authority

Geographical Survey Institute
Kitasato -1
Ibaraki-ken 305