Wind turbine explodes and topples - GIF

[Toolmaker51]

All good analyses, including insurance. The explosion at base might be fracturing bolts and footing. Interesting to me; two lowest blades about 120° and 240° fly off at their respective angle. Third blade however launches good as vertical, not re-entering GIF frame til 3-4 seconds later. If the speed shown by the lower blades any indication, #3 near certainly flew up 1 blade length, because it appears to have flipped end for end! Holy Moley!
So Marv, what altitude can be calculated as attained?