Lake Afrera
| Lake Afrera | |
|---|---|
| Location | Afar Depression |
| Coordinates | 13°17′N 40°55′E / 13.283°N 40.917°E |
| Basin countries | Eritrea, Ethiopia |
| Surface area | 114.8 km2 (44 sq mi) |
| Average depth | 20.9 m (69 ft) |
| Max. depth | 80 m (260 ft) |
| Water volume | 2.4 km3 (0.58 cu mi) |
| Surface elevation | −112 m (−367 ft) |
| Islands | Franchetti Island |
Lake Afrera (in Italian Lake Giuletti) is a hypersaline lake in northern Ethiopia. Located in Kilbet Rasu, Afar Region, it is one of the lakes of the Danakil Depression. It has a surface of 117 km2 (45 sq mi) and holds 2.4 km3 of brine. The maximal depth of Lake Afdera is 80 m in the northern basin and 76 m in the southern basin. No major river drain the lake. It is fed by hot springs along the shores of the lakes.
It is also known as Lake Giulietti, the name Raimondo Franchetti gave it after the Italian explorer Giuseppe Maria Giulietti was slain by Afars southwest of the lake. Another name for this body of water is Lake Egogi (or Egogi Bad), which is the name L. M. Nesbitt's Afar guide gave it when the Italian explorer became the first European to see it in 1928.
The single island in Lake Afrera, Franchetti Island (also known as "Deset"), located in the southern part of the lake, is considered the lowest-lying island in the world.
Unlike other saline lakes in Ethiopia (e.g., Lakes Abijatta, Shala, and Chitu), the pH of Lake Afrera is low and in the acidic range. Although little studied, a few species of fish are hosted by Lake Afrera, including two endemics: Danakilia franchettii (a cichlid) and Aphaniops stiassnyae (syn. Lebias stiassnyae; a pupfish).