Natural Hazard Flashcards
Define constructive plate margin
2 plates moving a part leaving a gap in the middle for magma to rise up
Define destructive plate margin
A dense oceanic plate descends below a less dense continental plate. As the plate descends it is melted due to friction with the continental plate forming hot liquid magma. This can then rise through cracks in the continental plate and form volcanoes
Define conservative plate margins
2 plates slip past each other either in opposite directions or at different rates in the same direction. This creates friction and energy which is released as an earthquake
Define natural hazard
A natural process which could cause disruptions to humans or destroy property or possessions
2 factors affecting hazard risk
- Vulnerability
- Capacity to cope
2 types of natural hazards
- Geological
- Meteorological