hazards - key terms

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  • Created by: 12afarmer
  • Created on: 15-09-16 15:34
Aftershocks
smaller earthquakes that occur in the same general area during the days to years following a larger event
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Plate Tectonics
the study of the distribution and movement of the earths crustal plates
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Fault
a fracture in the earth's crust that shows signs of movement
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Subduction Zone
the area of a destructive plate boundary where on eplate descends below the other
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Nuees Ardentes
highly destructive, fast moving clouds of dust and ash
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Shield Volcano
a volcano that covers a large area with very gently sloping sides
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Strato Volcano
tall,conical volcanoes composed of many layers
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Lahar
a type of mudflow composed of pyroclastic material and water that flows down from a volcano, typically along a river valley
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Pyroclastic Flows
avalanches of hot volcanic debris
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Geothermal
energy generated by heat stored deep in the earth
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GPS (Global Positioning System)
a group of satellites that allow people to find out their exact location on the earth'e surface
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Epicentre
the point on the earth's surface directly above the focus of an earthquake
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Seismic Waves
vibration generated by an earthquake
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Blind Fault
one where the fault line does not reach the surface
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Cyclone
a system of winds rotating inwards to an area of low pressure
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Hurricane
a violent tropical storm i n the Caribbean region
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Typhoon
a violent tropical storm over the Indian and Pacific Oceans
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El Nino
large climatic disturbances in the southern Pacific Ocean that occur every 3-7 years
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Desertification
the degredation of landin aris and semi-arid areas resulting primarily from human activities and influenced by climatic variations
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Other cards in this set

Card 2

Front

the study of the distribution and movement of the earths crustal plates

Back

Plate Tectonics

Card 3

Front

a fracture in the earth's crust that shows signs of movement

Back

Preview of the back of card 3

Card 4

Front

the area of a destructive plate boundary where on eplate descends below the other

Back

Preview of the back of card 4

Card 5

Front

highly destructive, fast moving clouds of dust and ash

Back

Preview of the back of card 5
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