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Tectonic hazards human impacts
- Disaster loss recovery cycle
- Continual event because of the socio-economic factors; it becomes chronic.
- Continual event because of the socio-economic factors; it becomes chronic.
- Why do people live in tectonically active areas?
- Choices
- Climate
- Pleasant climate which includes hot summers and
mild winters. People still want to live in that location.
- Pleasant climate which includes hot summers and
mild winters. People still want to live in that location.
- Jobs
- The opportunity of a job influences
people to live in an a location.
- The opportunity of a job influences
people to live in an a location.
- California, USA
- Benefits
- Prospects and diverse range of jobs.
- Mega cities such as Hollywood and LA.
- Pleasant climate.
- Diversity of culture.
- Prospects and diverse range of jobs.
- Costs
- Earthquake prone area but a large
volume is below the magnitude 3.
- Fault lines run through the
area: Cascadia and San
Andreas are the most popular.
- Earthquake prone area but a large
volume is below the magnitude 3.
- Benefits
- Inertia
- Traditional, historical or cultural reasons
to living with a tectonic hazard. This is
when a population has been established.
- Traditional, historical or cultural reasons
to living with a tectonic hazard. This is
when a population has been established.
- Education
- High level of education is often associated with areas of high
economic development. The ability to prepare residents.
- California, USA
- Earthquake Country Alliance prepares people for a tectonic hazard: drop,
cover and hold on campaign. The Great Shake Out drill occurs every October.
- Earthquake Country Alliance prepares people for a tectonic hazard: drop,
cover and hold on campaign. The Great Shake Out drill occurs every October.
- Many assume that tectonic hazards only occur on
plate boundaries, whereas, in actual fact tectonic
hazards occur anywhere on the Earth's surface.
- High level of education is often associated with areas of high
economic development. The ability to prepare residents.
- Climate
- Benefits
- Natural resources
- Mt Etna, Sicily, Italy
- Basaltic lava causes
mineral-rich soil is perfect for
cultivating vine yards, olive
graves and orchards.
- Europe's most active and tallest volcano.
- UNESCO world heritage site.
- Basaltic lava causes
mineral-rich soil is perfect for
cultivating vine yards, olive
graves and orchards.
- Establishment of mines because of ore deposit circulation.
They are created as a result of the heat generated causing
ore-bearing fluids to be circulated. E.g. copper, zinc and
gold.
- 500 million people live near a historically active volcano.
- Mt Etna, Sicily, Italy
- Geothermal energy
- Water running through the Earth's crust is heated,
bringing geothermal energy to the surface, where
it emerges as hot springs and fumaroles.
- 85% of all houses in Iceland are heated with geothermal energy.
- Water running through the Earth's crust is heated,
bringing geothermal energy to the surface, where
it emerges as hot springs and fumaroles.
- Tourism
- Modern cultures especially Western find volcanoes beautiful as well as threatening.
- Modern cultures especially Western find volcanoes beautiful as well as threatening.
- Natural resources
- By 2025, 600 million people
will be living in tectonically
active areas and so there is an
increased probability of an
increase in disasters.
- Choices
- Trends of hazards over time
- Frequency
- Volcanoes
- No increase but there is fluxuation.
- No increase but there is fluxuation.
- Earthquakes
- General increase in the number of recorded earthquakes in the world. This is because of the increase in the number of
seismograph stations and increased global communications. More lower intensity earthquakes have been detected in the past.
- General increase in the number of recorded earthquakes in the world. This is because of the increase in the number of
seismograph stations and increased global communications. More lower intensity earthquakes have been detected in the past.
- Volcanoes
- Impacts
- Number of fatalities have increased because
of the increasing global population.
- Number of fatalities have increased because
of the increasing global population.
- Frequency
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