Measured by surface area, the Caspian Sea is the world's largest inland water body. The sea covers roughly 143,200 square miles (371,000 square kilometers) and borders five countries: Iran, Russia ...

Talesh and Caspian Region: Recurrent activity, including a 2012, M6.4 Varzeghan earthquake near the Azerbaijan-Iran border, tied Ahar Fault. Ancient roads and seismic zones; Silk Road Corridors ...

The Caspian seal was listed as endangered by the International Union for the Conservation of Nature (IUCN) in 2008, due to a wide range of stressors, including oil and gas drilling, shipping, and ...