Question

imaginary description that occur due to the volcanic eruption due to an area

Answer 1

The effects of volcanic eruptions

Unlike other natural disasters such as floods, wild fires and earthquakes, volcanoes can have some positive effects, even though they can be very disastrous.

Let us see some negative effects of volcanoes:
Eruptions occurring close to human settlements may spill and destroy lives and property. People often have to be evacuated. 
Example: Chaparrastique volcano in El Salvador started erupting on 29 Dec, 2013. Anyone living within 2 miles of the volcano is evacuated.
Source: BBC News:www.bbc.co.uk/news/world-latin-america-25545555 

Ash discharged very high into the stratosphere can have negative consequences on the ozone layer. Read more about that here.

Landscapes and natural sceneries can be destroyed.

Ash and mud can mix with rain and melting snow, forming lahars. Lahars are mudflows flowing at very fast pace.

Some positive effects of volcanoes include:
Different types of erupting volcanoes provide extraordinary scenery, so beautiful and natural that they attract tourists to the area, bringing in some economic value.

Places close to volcanic activities tend to have higher potential forgeothermal energy, which can be an advantage to the towns and cities.

Some ash and lava breakdown become soils that are rich in nutrients, and become good areas for crop planting activities.