Primary and secondary impacts of volcanoes

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  • Created by: TheOnlyL
  • Created on: 11-06-13 21:02

Primary impacts:

  • Buildings and roads are destroyed by lava flows and pyroclastic flows - buildings also collapse if enough ash falls on them. 
  • People and animals are injured or killed, mainly by pyroclastic flows but also by lava flows and falling rocks.
  • crops are damaged and water supplies are contaminated when ash falls on them.
  • People, animals and plants are suffocated by carbon dioxide.

Secondary impacts:

  • Mudflows


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