In the human-living areas, volcanic eruptions could bring some dangers to human life, wealth and living.
Direct dangers: Explosive volcanic eruptions quickly eject from the crater a large number of solid materials, such as rock, magma, debris, and volcanic ash, which are hot and high-speed. These can burn and bury the nearby towns and life; the volcano spewed carbon, hydrogen, nitrogen, fluorine, sulfur and other oxides and radioactive substances, which will seriously harm human health.
Harmful Gases are produced by volcanic eruptions
Houses submerged in volcanic ash
Indirect dangers: Volcanic eruptions might cause a series of geological disasters, including earthquakes, tsunamis, floods, mudslides, landslides, avalanches, gas and climate variations. Volcanic debris, ash, and heavy rain combine to form mud-rock flow to wash away roads, bridges, and flood nearby cities and villages;
Surrey Volcano Debris Flow, UK
Earthquake
Flood
Tsunami
Avalanche