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Tectonic hazard human impacts

Tectonic hazard human impacts



The impact and reasons people still live in tectonically vulnerable areass

The impact and reasons people still live in tectonically vulnerable areass



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    Tectonic hazard human impacts Tectonic hazard human impacts Presentation Transcript

    • Tectonic hazard humanimpactsA2 Geography
    • What impacts do tectonic hazards have onpeople and how do these impacts vary? • The reasons why people live in tectonically active areas and how this might relate to the level of economic development.
    • Why??• Jot down reasons as to why people live in tectonically active areas.
    • So• They feel that the advantages outweighed the disadvantages• Most are perfectly safe for long periods• Those that erupt more often are seen as predictable• Today around 500 million people live on or close to volcanoes• Popocatapetl Volcano is less than 50 miles from Mexico City
    • Can we break it down to amanageable list?• Minerals• Tourism• Fertile Soils• geothermal energy• Ignorance• Inertia
    • Minerals• As we have seen from the feildtrip there is much wealth to gained from the land in terms of minerals formed from volcanic activity• These can include the better known minerals such as: – Tin – Silver – gold – copper• As well as many lesser known but now valuable ones (Lead, Zinc, sulphur)
    • Mining• Due to these minerals mining is an important source of wealth for many places around the world• Dangerous mining activites are carried out for the gains that can be made• Volcanic activity causes and creates minerals
    • Tourism• Volcano tourism in nothing new they attract millions of visitors every year• Around volcanoes there can be warm bathing lakes, hot springs, bubbling mud pools and steam vents often said to aid health.• Geysers are always popular tourist attractions, such as Old Faithful in the Yellowstone National Park, USA. Old Faithful is such a popular tourist feature that it even has its own 24 hour Old Faithful webcam.
    • Tourism• Iceland markets itself as a land of fire and ice, attracting tourists with a mix of volcanoes and glaciers, often both in the same place.• The wild, raw and barren volcanic landscapes also attract tourists who want to see what the early planet may have looked• Tourism creates jobs in shops, restaurants, hotels and tourist centres / national parks.• Locals economies can profit from volcanism throughout the year.• In Uganda, the volcanic region around Mt Elgon is heavily promoted for its landscape, huge waterfalls, wildlife, climbing and hiking and its remote get away from it all location.
    • Fertile Soils• Volcanic materials ultimately break down and weather to form some of the most fertile soils on Earth, cultivation of which has produced abundant food and fostered civilisations.• Early people settled on the rich, fertile volcanic soils in the Mediterranean-Aegean region.• Some of the best rice-growing regions of Indonesia are in the shadow of active volcanoes.• Similarly, many prime agricultural regions in the western United States have fertile soils wholly or largely of volcanic origin
    • Geothermal Energy• In recent as well as past times the energy and heat being given off by volcanic activity has been used• the best geothermal resources are concentrated in areas of volcanic activity and are not widely distributed. California, Iceland, Italy, New Zealand and Japan are all areas where geothermal energy is used on a significant scale.
    • Ignorance• Possibly the hardest to quantify• What do you think this means?• How could this be related to levels of economic development?
    • Inertia• What do we mean by this?
    • Other Factors to consider• Business Opportunities• Industrial Products• Spas and Resorts
    • Your Job• For each of the areas considered here you should have a case study to help explain these.• They do not need to be large or indepth but should be able to help explain why people live in the areas• Reference:• >>HERE<<