Volcanoes
Volcanoes are usually less dangerous than other natural hazards such as earthquakes, tsunamis and hurricanes. Volcanoes have a serious of hazards that relate into different dangers or risks. The risks when visiting an active volcano depend on which risk zones of the volcano are visited and for how long.
http://www.sciencedaily.com/news/earth_climate/volcanoes/
Earthquakes
The type of hazard depends on the strength of seismic activity, along with such factors as local topographic and built features, subsurface geology and groundwater. A large earthquake will always be followed by a sequence of aftershocks.
http://www.livescience.com/topics/earthquakes/
Volcanoes are usually less dangerous than other natural hazards such as earthquakes, tsunamis and hurricanes. Volcanoes have a serious of hazards that relate into different dangers or risks. The risks when visiting an active volcano depend on which risk zones of the volcano are visited and for how long.
http://www.sciencedaily.com/news/earth_climate/volcanoes/
Earthquakes
The type of hazard depends on the strength of seismic activity, along with such factors as local topographic and built features, subsurface geology and groundwater. A large earthquake will always be followed by a sequence of aftershocks.
http://www.livescience.com/topics/earthquakes/