Volcanoes are an opening in the earth's surface generally found where tectonic plates are diverging or converging. Erupting volcanoes can eject a variety of material that can cause potential hazards to human life and property. These include: ash, falls, pyroclastics flows, lava flow and gas emission. In addition volcanic eruptions may also produce secondary impacts, including tsunamis, contaminated ash, or aerosol clouds that may contribute to ozone depletion. Detailed knowledge about the history of eruptions for a volcano and likely pathways lava flows and ash dispersal should inform hazard mapping. In addition the threat of volcanic eruption can vary considerably over time, so regular monitoring of volcanoes and broadcast of warnings is essential. The most common consequence of a volcano are population movements as large numbers of people are often forced to flee the moving lava flow. Volcanic eruptions often cause temporary food shortages and volcanic ash landslides called Lahar. [Source: IFRC]
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Consider creating a or revising your current workplace's Business Continuity Program.
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What do I need to know?
Glowing avalanche: The most dangerous type of volcanic eruption is referred to as a 'glowing avalanche'. This is when freshly erupted magma forms hot pyroclastic flow which have temperatures of up to 1,200 degrees. The pyroclastic flow is formed from rock fragments following a volcanic explosion , the flow surges down the flanks of the volcano at speeds of up to several hundred kilometres per hour, to distances often up to 10km and occasionally as far as 40 km from the original disaster site. [Source: IFRC]
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