लेखक: Roberto Scarpa

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For many centuries people living on volcanoes have known that the outset of seismic activity is often a forerunner of a volcanic eruption. This understand- ing allowed people living close to the site …

By the year 2000, the population worldwide at risk from volcanic hazards is likely to increase to about half a billion. Since 1980, significant advances have been made in volcano monitoring, data fro …