Political, Social and economic issues associated with a volcanic eruption

A sudden violence of volcanic eruptions causes catastrophe and devastation. Volcanic Eruptions have devastating impact of volcanic activity on nearby landscapes and communities. Many people are killed, and large numbers of people have to abandon their homes and lands forever. Even the whole world’s climate was changed for a while as a result of an eruption. Governments have to pay enormous amounts to rebuild cities and towns. People become more terrified and havoc fills surrounding towns.

Volcanic eruptions are one of Earth's most dramatic and violent agents of change. Not only can powerful explosive eruptions drastically alter land and water for tens of kilometers around a volcano, but tiny liquid droplets of sulfuric acid erupted into the stratosphere can change our planet's climate temporarily. Eruptions often force people living near volcanoes to abandon their land and homes, sometimes forever. Those living farther away are likely to avoid complete destruction, but their cities and towns, crops, industrial plants, transportation systems, and electrical grids can still be damaged by tephra, ash, lahars, and flooding.
Fortunately, volcanoes exhibit precursory unrest that if detected and analyzed in time allows eruptions to be anticipated and communities at risk to be forewarned with reliable information in sufficient time to implement response plans and mitigation measures.