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.
A volcanic eruption on 30 Sep, 1994 resulted in heavy subsidence until Oct 1. Based on geodetic leveling information provided by local authorities, -13 cm were added to the Oct 1994 data and -14 were added to the Nov 1994 data