reducing the effects of volcanoes - aqa...
TRANSCRIPT
![Page 1: Reducing the Effects of Volcanoes - AQA GEOGRAPHYdene-geography.weebly.com/uploads/4/9/9/6/49968851/... · Reducing the effects 1. Evacuation 2. Ash-proof roofs 3. Information/guidance](https://reader033.vdocuments.site/reader033/viewer/2022042202/5ea264a65c19072f7a5c9a76/html5/thumbnails/1.jpg)
Reducing the Effects of
Volcanoes
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500 million people live
in the danger zone
A volcanic eruption cannot be
prevented, but it can be monitored
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Describe in detail 2 methods of
monitoring volcanoes.
Method 1: A tilt meter can identify…
Laser ranging
Tilt meter
Seismic activity
SO2 gas release
Temperature change
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Examine the actions
taken at each
volcano – Mt Merapi
and Mt Etna.
What was done to
reduce the effects of
each volcano?
How are the
actions different?
Developed vs Developing
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Strategies considered...
• Restricting access to the area:
Montserrat in the south of the island.
• Evacuation: Movement of 17,000 people
away from a place of danger to a place
of safety e.g. Mt Merapi, Indonesia.
• Reducing the effects of the eruption:
Mt Etna, bulldozers building rock walls to
divert lava away from villages. Dropping
water to cool the lava, slowing it down.
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Mount Merapi (Indonesia)
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Hazard map for Mount Merapi (Indonesia)
![Page 9: Reducing the Effects of Volcanoes - AQA GEOGRAPHYdene-geography.weebly.com/uploads/4/9/9/6/49968851/... · Reducing the effects 1. Evacuation 2. Ash-proof roofs 3. Information/guidance](https://reader033.vdocuments.site/reader033/viewer/2022042202/5ea264a65c19072f7a5c9a76/html5/thumbnails/9.jpg)
Reducing the effects
1. Evacuation
2. Ash-proof roofs
3. Information/guidance
4. Hazard maps
5. Lava spraying
6. Lava diversions
Explain how
each of these
could be
useful and
help reduce
the effects of
a volcano.
Write a
minimum of a
sentence for
each and
provide a case
study if you
can.
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Which is the best route to divert the lava?
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Opinion line
Volcanoes Earthquakes
• Which is harder – reducing the effect
of earthquakes or volcanoes?
• Come to the front of the class and
write your name on the line where your
opinion lies