Volcanoes are usually considered an intriguing natural phenomenon. Though the problems of their favourable influence on manking,s nature studying activities are still poorly revealed. Volcanoes attract people by periodically renewed ash-soils fertility, high productivity of rejuvenated successions and favourable microclimate. Some of these regions are the seat of agricultural crops and ancient civilisation.

Only the reliable organisation of risk management can normalise the living standards of people here in view of steady population growth on the Earth.