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
Several apparent datum problems in the 1950s and 1960s
Documentation added 2011-02-22
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.
Documentation added 2012-02-21
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.
Documentation added 2014-03-13
The GPS benchmark information has been downloaded from the SONEL website. GPS benchmark P206 is 16.204m above RLR.
Marine Department Japan Meteorological Agency Ote-machi, Chiyoda-ku Tokyo