Hverfell

Europe's largest tephra crater

The enormous tephra crater Hverfjall was formed in an explosive eruption some 2,500 years ago. At one kilometre in diameter, Hverfjall is probably the biggest tephra crater in Europe, which makes it well worth a visit.

This enormous tephra crater was formed in an explosive eruption some 2,500 years ago. At one kilometre in diameter, Hverfjall is probably the biggest tephra crater in Europe which makes it well worth a visit.

You can find it close to lake Mývatn between Dimmuborgir and Hverarönd.