Good way to estimate height of lava strokes?

[@TheRussellStover]

I'll just guess (heh) from another video that estimated 400 meters which much shorter than the 1:05 launch was about 600 meters or so. The method by Peter Lunk good but I can't tell how high exactly one the lava cools and disappears into the night sky.

[@Whag09]

cone is about 50m high, and this one is really small compared to the biggest I saw from this vent ;) (check for footage on 2 may night around 2AM)I would say somewhere around 150-180m? it might change if you mesure the ashes or the "glowing stuff" though. Quite impressive nevertheless !