earth hazards definitions 4.0 / 5 based on 1 rating ? GeographyPlate tectonicsA2/A-levelOCR Created by: _awoodwardCreated on: 01-01-16 17:07 Hazard potential threat, that has the potential to cause loss of life, injury and or property damage 1 of 18 disaster realisation of the hazard threat 2 of 18 Degg's model model representing what a natural event meets a vulnerable population causes a disaster 3 of 18 earthquake sudden violent shake of the ground, as a result of movements within the earths crust or volcanic action 4 of 18 modify event technological fix and has management strategies 5 of 18 modify vulnerability change in human attitude, change in dynamics of the area 6 of 18 modify loss comes in the form of aid and insurance 7 of 18 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 8 of 18 magma under the surface 9 of 18 lava above the earths surface 10 of 18 rhyolitic a viscous high silica content lava that is highly explosive 11 of 18 basaltic a fluid, fast moving, low silica content, high CO2 content, lava that is non explosive 12 of 18 volcanic hazard the probability that a volcanic eruption will happen in a given geographical area within a specified window of time 13 of 18 tsunami wave a long high sea was caused by an earthquake at sea or other disturbance 14 of 18 run-up stage the stage where a tsunami make landfall, wave height increases 15 of 18 drawdown retreat of the sea level as a tsunami wave trough approaches land 16 of 18 wave refraction the change is the approach angle of a ave as it moves towards the shore 17 of 18 flood an overflow of a large amounts of water beyond its normal limits, especially over what is normally dry land 18 of 18
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