Hverfjall Crater in Mývatn. By Norris Niman. Myvatn. Posted on October 10, 2022October 10, 2022 1440 × 1800 Hverfjall Crater in Mývatn. By Norris Niman. Myvatn. Hverfjall Crater in Mývatn. By Norris Niman. Myvatn.