The Caspian Sea, often mistaken for a sea because ... to 20 feet (4 to 6 meters), while the southern regions host the sea’s deepest point at 3,360 feet (1,024 meters) below the surface.

Environmental activists and officials have raised alarms over the rapidly decreasing water levels of the Caspian Sea, emphasizing the urgent need for collective action among the bordering nations.

TEHRAN – Deputy Foreign Minister for the Caspian Sea affairs, Alireza Jahangiri, and the special representative of ...

In the Caspian Sea and neighbouring land masses ... In fact, the highest concentration of mud volcanoes is found at the junction of deep-seated faults: in submarine settings, mud volcanoes ...