The Environmental Organization Dive In Action, within the framework of the Cald-Erata 2024/27 project, proceeded from 29/10 to the purchase of a multiparameter instrument and the purchase and installation of data loggers, which are the tools for the start of field work for the program. With basic cooperation, with the National and Kapodistrian University of Athens in the “nexus monARC” program as a recipient and processing of the data, where Dive In Action is a definitively associated partner of the program since 13/11/24.
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Secondarily, the data are channeled to the study of the Thera Volcanic Complex at the Aristotle University and the Institute for the Study and Monitoring of the Santorini Volcano. They are also provided to programs of the University of the Aegean and the University of Patras. The results are finally intended for regular public information, as well as educational informative presentations to students with parallel actions and exercises of the “CaldErata” samplings.

The data are collected by the 3 CaldErata stations, which have been installed since April 2025, and in parallel, quality measurements are being made in collaboration with all the stakeholders. The map shows the layout of the stations, which cover the entire inner Caldera area. The Caldera area is of great importance, as the central point of the volcanic arc of the island region that covers, from Methana 37.602666, 23.366498 to Milos 36.715393, 24.481384 to Santorini 36.404829, 25.401444 and Nisyros 36.577891, 27.168282 and upon completion of the project we will have in our hands a detailed long-term archive.
CaldErata /24 – /27
For the project: nexus monARC
And the support: Cyclades Preservation Fund -CPF
@Santorini Active Volcanic Environment
@VOLCANO DIVER
@Dive In Action
And the kind help for the transportation: Santorini Diving Center – Pavlos Stefanides, Dakoutros Travel – Artemis Dakoutros, GEOTHIRA MAE and the staff and Municipality of Thira





