1 Hazardous Environment glossary Flashcards
what are Natural Disaster
A physical event (1) which results in death, damage or destruction (1)
what are tectonic hazards
A physical event (1) caused by plate tectonics which leads to volcanoes, earthquakes and tsunamis (1)
what are earthquakes
An earthquake is a series of vibrations or shock waves (1) among the rocks in the Earth’s crust (1).
what is a tectonic plate
A giant slab of earth’s curst (1) which can move or float on top of the mantle (1)
What are geological hazards
Geologic hazards are naturally-occurring events capable of causing loss or damage.
What are geological risks
Geological risks refer to natural hazards or potential hazards that are associated with geological processes or conditions.
what is Liquefaction
Soil liquefaction occurs when a saturated or partially saturated soil loses strength when shaking happens during an earthquake. The material that is ordinarily a solid behaves like a liquid.
what is a Volcano
An opening in the Earth’s crust out of which lava, ash and gases erupt.
what is an active volcano
A volcano which could erupt at any point (1) and eject material such as lava, ash and gas (1)
what is a Dormant Volcano
A volcano which has not erupted for a long time but may still erupt.
what is an Extinct Volcano
A volcano which will never erupt again.
what are Primary Impacts/ Effects
The happen immediately as a direct result of the hazard.
Secondary Impacts/ Effects
These happen in the weeks/months/ years after the hazard as a subsequent result of the primary effects
what are Short-term responses
a response in the days and weeks immediately after a disaster has happened.
what are Long-term responses
responses that go on for months and years after a disaster.
