Station Information

Station ID: 359
Latitude: 34.918889
Longitude: 139.825
Coastline code: 642
Station code: 61
Country: JAPAN
Time span of data: 1931 – 2017
Completeness (%): 96
Link to ellipsoid: Available
Date of last update: 20 Feb 2018

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR 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: P206
Nearby Real Time Stations from VLIZ: mera
Fast Delivery Data from UHSLC station 352: hourly and daily
Research Quality Data from UHSLC station 352: hourly and daily

Station Documentation

Link to RLR information.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Mera 642/061 RLR(1976) is 11.2m below Attached BM
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993
Several apparent datum problems in the 1950s and 1960s
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 22-Feb-2011
By buddy checking the data for Mera against that for Aburatsubo and adding the residuals there does seem to be datum problems during the late 40's through to the mid 60's.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 21-Feb-2012
A massive earthquake of 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 Peninsula of Tohoku. It was the most powerful known earthquake to hit Japan generating a tsunami with waves up to 40.5m travelling up to 10km inland.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 13-Mar-2014
The GPS benchmark information has been downloaded from the SONEL website. GPS benchmark P206 is 16.204m above RLR.

Data Authority

Marine Department
Japan Meteorological Agency
Ote-machi, Chiyoda-ku