3. Erta Ale – Ethiopia
Erta Ale is the most active volcano in Ethiopia. It is an isolated basaltic shield volcano, 50 km wide, rising more than 600 m from below sea level in the barren Danakil depression. Erta Ale is one of the driest, lowest, and hottest places on Earth. Temperatures during the year range from 77 degrees Fahrenheit to 118 degrees Fahrenheit. The area is beset by drought, bereft of trees, and has little in the way of roads. It is one of only a handful of continuously active volcanos in the world, and a member of an even more exclusive group: volcanos with lava lakes. While there are only five known volcanos with lava lakes globally, Erta Ale often has two active lava lakes, making it a unique site.