In late 1389 Hekla erupted again (VEI 3), starting with a large ejection of tephra to the southeast. Later the eruption fissure moved itself out of the mountain proper and into the woods a little above Skard. Skard and another nearby farm were destroyed by a large lava flow that now forms the 12.5 km2 Nordurhraun. In total around 0.3 km3 of lava and 5×107 m3 of tephra were produced.