=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 06-Aug-1992 Italian levels may be influenced by the Messina Earthquake of 1908 - See Bottari et al.,Tectonophysics, 202, 269-275, 1992 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 17-Mar-1993 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? =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 30-Jul-1993 Low value June 1918 - correct as received from authority. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 07-Dec-1998 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. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 25-Jan-2000 Civitavecchia 250/031 RLR(1920) is 11.4m above BM Civitavecchia is an historic station. Last data 1922