CANADA: The eruption began with a fountain of lava stretching one kilometre in the sky, then an ash plume reaching three kilometres.
The show lasted 50 minutes, spewing ash plumes and lightning in what is called a “dirty thunderstorm”. Meteorologists say the phenomenon occurs when ash particles collide to create electrical charges, similar to the static generated when rubbing a balloon against your head.
Sicilian photographer Marco Restivo overlapped five images to create one single photo showing the dirty thunderstorm.
