Of course the video is speeded up, since those cams only transmit every few seconds. Watch the speed of the clouds in the sky to get an idea of how much it is speeded up.

Nonetheless, that is an impressive concussive wave.

It would only take a few degrees more 'magnitude' for Popo to cause catastrophic human damage.

Many think that just because it hasn't done it before, that it won't happen.

But a volcano neither knows nor care who or how many live in its shadow. It's just a volcano, and can do whatever is natural for it to do. Humankind is the intruder here.