Immediate and long-term responses to a tectonic hazard. Human response to tectonic hazards can be immediate or long-term. Short-term or immediate responses occur in the days and weeks immediately after a disaster has happened. Hazard occasions are eccentric: We cannot foresee the recurrence, extent or size of a characteristic occasion. Absence of choices: Due to social, political, monetary and social components, individuals cannot just evacuate themselves starting with one spot and move then onto the next, surrendering their homes, land and work.. Changing the degree of a hazard: Places that were once generally safe ... Primary Hazards Primary hazards include ground shaking, landslides (a downward sliding of a dry mass of the earth either from mountains or cliffs), liquefaction (when the soil is reduced to a liquid) and surface rupture (breaking of the surface along a fault). Earthquakes can destroy settlements and kill many people. Aftershocks can cause even more damage to an area. It is possible to classify the impacts of an earthquake, by taking the following ... Natural hazards are extreme natural events that can cause loss of life, extreme damage to property and disrupt human activities. Some natural hazards, such as flooding, can happen anywhere in the ... Hazard: a threat (natural or human) that has the potential to cause loss of life, injury, property damage, socio-economic disruption or environmental degradation.; Hazard event: the occurrence of a hazard eg. an earthquake ; Disaster: a major hazard event that causes widespread disruption to a community or region, with significant demographic, economic and/or environmental losses, and which ... Primary hazards are those directly related to the disaster: being swept away in the flood waters; being struck by flying debris… Secondary hazards are those indirectly related to the disaster: cholera from compromised water systems; fires caused by downed power lines… The results of a natural hazard taking place, such as deaths, injuries, and destruction of property. ... Primary waves are alternatingly compressional and extensional, and cause the rocks they pass through to change in volume. ... Tectonic Processes and Hazards (A-level, Physical Geography) 60 terms. Seismic Activities. 37 terms. Unit 1 - The ... The simplest way to distinguish between these effects is to categorise them as primary or secondary. A primary effect is one that is directly caused by the disaster, is an integral part of the disaster itself; in the case of an earthquake, it would be the ground shaking, or in the case of a volcanic eruption, lava pouring out of the volcano. What is a Natural Hazard? "Hazard always arises from the interplay of social and biological and physical systems; disasters are generated as much or more by human actions as by physical events." (Geographer Gilbert F. White, the “father of floodplain management”) A hazard is distinguished from an extreme event and a disaster.
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