Most of us have seen volcano eruptions only over TV. That's why we don't realize how dangerous this phenomenon is. We don't even realize how many dangerous volcanos there are in the world. Five most dangerous volcanoes are described on dictat.net.
Galeras Volcano. This majestic and at the same time extremely dangerous volcano is located in South America in Colombia. It rises 4276 meters above the sea level. Galeras crater is 320 meters in diameter and more than 80 meters depth.