"After hiking to the viewing area for the volcano and photographing for more than an hour, I packed my tripod but then noticed a tornado forming over the lava flow, luckily I caught it on video".Rb: What Sigfús Steindórsson is trying to say here is a whirlwind formed over the lava flow. Very cool at higher resolution as embers are spraying everywhere.Sigfús' 1:48 video here.