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WAEarth and Environmental ScienceQuick questions
Unit 4: Earth hazards and climate change
Quick questions on Volcano types and eruption style: WACE Year 12 Earth and Environmental Science
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are volcanic hazards?Show answer
Explosive eruptions produce the most dangerous hazards.
What is measuring eruption size?Show answer
The Volcanic Explosivity Index, or VEI, ranks eruptions on a scale based mainly on the volume of material erupted and the height of the eruption column. It is logarithmic, so each step up represents a roughly tenfold increase in size. It lets scientists compare eruptions and rank explosive events that pose the greatest hazard.
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