Tectonic Landscapes and Hazards Flashcards
New building technology
Earthquake-proof buildings have been constructed in many major cities
Emergency Planning
An exclusion zone can be set up
evacuation routes
people can be educated
This allows the local authorities to:
limit access to hazardous areas
control development in areas
Hazard Mapping
highlights areas affected by, or vulnerable to Earthquakes
Social and Economic (Human) factors that affect vulnerability
wealth- poor people are less likely to afford housing
education- written messages can bee used to spread information
Governments- can support education and awareness
Health- a healthy person is more likely to escape the dangers
Monitoring Earthquakes, tsunamis and Volcanic eruptions
laser beams can be used to detect plate movement
A seismometer is used for vibrations
Levels of radon gas escaping from cracks
Secondary Social factors
thousands of people were living in shelters
not enough toilets
Secondary Environmental factors
1300 of farmland were abandoned
food prices rose
$700m revenue lost
Primary Economic factors
ash clouds cause delays in Indonesia
Primary Social Factors
ash clouds cause breathing problems
570 people injured
320,000 people evacuated
Physical Factors that increase vulnerability
Lava flows- molten rock flows down the side
Lahars- Volcanic mudflows consisting of ash and water
Ash clouds- ash thrown high into the atmosphere
Small-scale features include
Hot cinders
a lava tube
a geyser
Large- scale Volcanic hotspots are formed by:
when a magma chamber is emptied
through a massive explosive volcanic eruption
Volcanic Hotspots
is a small of the Earth’s crust which has an unusually high amount of volcanic activity
Rift Valley (How formed)
Where two continental plates pull apart
