earth hazards definitions

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Hazard
potential threat, that has the potential to cause loss of life, injury and or property damage
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disaster
realisation of the hazard threat
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Degg's model
model representing what a natural event meets a vulnerable population causes a disaster
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earthquake
sudden violent shake of the ground, as a result of movements within the earths crust or volcanic action
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modify event
technological fix and has management strategies
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modify vulnerability
change in human attitude, change in dynamics of the area
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modify loss
comes in the form of aid and insurance
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volcano
naturally occurring, an opening in the earths surface which allows hot lava, volcanic ash and gases to escape from the magma chamber below the surface
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magma
under the surface
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lava
above the earths surface
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rhyolitic
a viscous high silica content lava that is highly explosive
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basaltic
a fluid, fast moving, low silica content, high CO2 content, lava that is non explosive
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volcanic hazard
the probability that a volcanic eruption will happen in a given geographical area within a specified window of time
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tsunami wave
a long high sea was caused by an earthquake at sea or other disturbance
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run-up stage
the stage where a tsunami make landfall, wave height increases
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drawdown
retreat of the sea level as a tsunami wave trough approaches land
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wave refraction
the change is the approach angle of a ave as it moves towards the shore
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flood
an overflow of a large amounts of water beyond its normal limits, especially over what is normally dry land
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Other cards in this set

Card 2

Front

realisation of the hazard threat

Back

disaster

Card 3

Front

model representing what a natural event meets a vulnerable population causes a disaster

Back

Preview of the back of card 3

Card 4

Front

sudden violent shake of the ground, as a result of movements within the earths crust or volcanic action

Back

Preview of the back of card 4

Card 5

Front

technological fix and has management strategies

Back

Preview of the back of card 5
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