Fish tanks of eastern Crete (Greece) as indicators of the Roman sea level

► Submerged Roman fish tanks of Matala, Chersonissos, Mochlos, Sitia, Zakros in Crete. ► Use of roman fish tanks as tools for the dating of ancient sea levels. ► The submersion event is connected with the strong earthquake of 1604. ► Determination of a 1st and 2nd c. AD sea level 1.24 m ± 0.09 m lower than the present. ► Average rate of change in the land-sea relationship for 1900 ± 100 yrs BP is 0.65 mm/yr.