1693 Starting 13 February and lasting for over 7 months the eruption was one of Hekla's most destructive (VEI-4). Initially tephra was produced at 60,000 m3·s−1, during the entire eruption, which also caused lahars and tsunami. The tephra was deposited to the northwest, destroying and damaging farms and woodland in Þjórsárdalur, Land, Hreppar and Biskupstungur. Fine ash from the eruption reached Norway. There was damage to wildlife with significant numbers of trout, salmon, ptarmigan and farm animals dying.
1693 starting 13 february and lasting for over 7 months the eruption was one of hekla's most destructive (vei-4) initially tephra was produced at 60000 m3·s−1 during the entire eruption which also caused lahars and tsunami the tephra was deposited to the northwest destroying and damaging farms and woodland in þjórsárdalur land hreppar and biskupstungur fine ash from the eruption reached norway there was damage to wildlife with significant numbers of trout salmon ptarmigan and farm animals dying