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.
Italian levels may be influenced by the Messina Earthquake of 1908 - See Bottari et al.,Tectonophysics, 202, 269-275, 1992
Documentation added 1993-03-17
The stations Porto Maurizio (250/001), Napoli Arsenale (250/041) and Napoli Mandraccio (250/051) appear to each have a datum shift around 1910. Evidence for regional coherence?
Documentation added 1993-07-30
Low value June 1918 - correct as received from authority.
Documentation added 1998-12-07
For a discussion of land movements in the area of the Gulf of Naples, see the paper by G.Berrino in Tectonophysics,294,323-332,1998.
Documentation added 2000-01-25
Civitavecchia 250/031 RLR(1920) is 11.4m above BM Civitavecchia is an historic station. Last data 1922
Data Authority
Istituto Idrografico della Marina Passo Osservatorio 4 16134 Genova