ITO II

Station Information

Station ID:	1343
Latitude:	34.895556
Longitude:	139.133056
Coastline code:	642
Station code:	112
Country:	JAPAN
Time span of data:	1973 – 2016
Completeness (%):	95
Frequency Code:	24
Link to ellipsoid:	Available
Date of last update:	09 Feb 2017

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.

Tide Gauge 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: P113

Station Documentation

Link to RLR information.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Ito 642/112 RLR(1975) is 8.7m below BM Attach-28
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-JUL-93 :
Datum shift and/or trend difference following short gap in 1978.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 22-Feb-2012 :
A massive earthquake magnitude 9.0 occurred at 14.46 JST (05.46 UTC) on Friday 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 triggering a tsunamia with waves of up to 40.5m and travelling inland up to 10km.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 13-Mar-2014 :
The GPS benchmark information has been downloaded from the SONEL website. GPS benchmark is P113 13.771m above RLR.

Data Authority

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