Negative effects of volcanicity

Negative effects of volcanicity

Volcanicity involve expulsion of magma on the earth’s surface to form various features such as volcanic mountains, lava plateau and craters




The following are Negative effects of volcanicity

  • Volcanicity can result in loss of life and destruction of property through the burning effects of lava. When lava erupts it is very hot and it burns everything on its path including animals and plants together with humans properties such as houses and infrastructure there it leads to loss of both life and properties
  • The emission of poisonous gases can cause air pollution on the environment. The volcanic eruption does not only extrude on lava but it also lead to emission of gases such as sulphur which can lead to health problems to those who inhale them
The following are Negative effects of volcanicity
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  • Lava flow can solidify along transport lines causing barriers. When lava flow on the earth’s surface it can block infrastructure such as roads and railways thus impeding transport of goods and passengers to their destination
  • The rugged landscape from volcanicity makes settlement & agriculture difficult. Flow of lava on the earth’s surface can rugged surface which can not immediately put to immediate use such as farming and settlement therefore in short run volcanic eruption displace people
  • Recent volcanic soils are poorly developed and are unsuitable for agriculture. When lava erupts and solidify they can not be farmed. It takes time for the lava to be weathered down and turned into soil which is suitable for agriculture




  • Volcanic materials create a rain shadow effect which results in aridity on their leeward sides. When volcanic eruption leads to formation of volcanic mountains it forms the side which get a lot of rain and the side which gets no or very low rainfall thus causing aridity