GEOLOGY

Detailed explanation-1: -Volcanic eruptions can result in additional threats to health, such as floods, mudslides, power outages, drinking water contamination, and wildfires.

Detailed explanation-2: -Although there are several factors triggering a volcanic eruption, three predominate: the buoyancy of the magma, the pressure from the exsolved gases in the magma and the injection of a new batch of magma into an already filled magma chamber.

Detailed explanation-3: -Volcanic eruptions which cause earthquakes, fast flood, mudslide and rock fall. Lava which travels very far and they destroy many lives and bury them into the lava. Breathing problems and skin irritation take place due to the ash and fog of the volcano.

Detailed explanation-4: -An increase in the frequency and intensity of felt earthquakes. Noticeable steaming or fumarolic activity and new or enlarged areas of hot ground. Subtle swelling of the ground surface. Small changes in heat flow. Changes in the composition or relative abundances of fumarolic gases.