Some volcanoes simply ooze lava, which seldom moves fast enough to catch people by surprise. But others explode with more energy than a nuclear bomb!
Mõningatest vulkaanidest immitseb laavat vaid vähehaaval, nii et ootamatuid olukordi tuleb ette haruharva, mõningad aga purskuvad tuumapommist suurema energiaga.