Ash thrown into the air by eruptions can present a hazard to aircraft , especially jet aircraft where the particles can be melted by the high operating temperature ; the melted particles then adhere to the turbine blades and alter their shape , disrupting the operation of the turbine . Dangerous encounters in 1982 after the eruption of Galunggung in Indonesia , and 1989 after the eruption of Mount Redoubt in Alaska raised awareness of this phenomenon . Nine Volcanic Ash Advisory Centers were established by the International Civil Aviation Organization to monitor ash clouds and advise pilots accordingly . The 2010 eruptions of Eyjafjallajökull caused major disruptions to air travel in Europe
2010 eruptions of Eyjafjallajökull
2010 eruptions of Eyjafjallajökull
Volcano