Data and Station Information for YAIZU

Station Information

Station ID:	1438
Latitude:	34.870556
Longitude:	138.327222
Coastline code:	642
Station code:	122
Country:	JAPAN
Time span of RLR data:	1981 – 2024
RLR completeness (%):	97
Time span of metric data:	1977 – 2024
Metric completeness (%):	96
Link to ellipsoid:	Available
Date of last update:	21 Mar 2025

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.

Tide Gauge Data

Plot of monthly mean sea level data at YAIZU.

Link to larger image of monthly data plot.
Download monthly mean sea level data.

Plot of annual mean sea level data at YAIZU.

Link to larger image of annual data plot.
Download annual mean sea level data.

Download metric sea level data. Use only with extreme caution. NOTE: If some of the data are red in the plots above, the 'flag for attention' is set. Please see the documentation below.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: P115

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Yaizu 642/122 RLR(1983) is 9.8m below BM Attach-32

Documentation added 2009-05-05

Dataset after the gap in 1998 appears slightly higher.Treat data with caution.

Documentation added 2012-02-22

A massive earthquake magnitude 9.0 occurred at 14.46 JST (05.46 UTC) on the 11th March 2011 with the epicentre situated approx. 70km east of the Oshika Peninsula of Tohoku. It was the most powerful earthquake to strike Japan with waves of 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. The GPS benchmark P115 is 13.384m above RLR.

Data Authority

Geographical Survey Institute
Kitasato -1
Tsukuba-shi
Ibaraki-ken 305

Data

Data Notes

Extracted from Database

YAIZU