Globally, there is about one volcano erupting each week. Volcanic unrest kills an average of 500 people every year and costs the global economy roughly US$7 billion (£5.7 billion). With one in 20 people living somewhere at risk of volcanic activity, every effort that can be made to improve the monitoring of volcanoes is important.
Click here for original story, Glaciers can give us clues about when a volcano might erupt
Source: Phys.org