Data and Station Information for OSHORO II

Station Information

Station ID:	1027
Latitude:	43.209444
Longitude:	140.858056
Coastline code:	641
Station code:	42
Country:	JAPAN
Time span of data:	1963 – 2024
Completeness (%):	100
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 OSHORO II.

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

Plot of annual mean sea level data at OSHORO II.

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: P101

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Oshoro II 641/042 RLR(1975) is 9.6m below BM Attach-9

Documentation added 1993-07-12

Oshoro II 641/042 RLR(1975) is 9.6m below BM Attach-9

Documentation added 1995-08-29

A destructive earthquake and tsunami occurred in the Kuril Islands on
4 October 1994 - see Earth System Monitor, 5(4), June 1995.

Documentation added 2009-11-17

The relevant authority for this station is
the Geographical Survey Institute. For some reason
the data for 1998 was not downloaded from this
authority. Data downloaded and entered 17.11.09.

Documentation added 2011-02-24

Although quite a way away when Oshoro II is buddy checked with Wakkanai the
profile features compare well.

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
Tohoku. It was the most powerful known earthquake to hit Japan triggering a
tsunami with waves up to 40.5m and travelling up to 10 km inland.

Documentation added 2014-03-13

The GPS benchmark information has been downloaded from the SONEL website. GPS benchmark P101 is 12.648m above RLR.

Data Authority

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

Data

Data Notes

Extracted from Database

OSHORO II