Volcanos Flashcards
What type of plate boundary is eyjafallokull on?
Constructive plate boundary
Which plates is the volcano on?
North American and Eurasian plate.
When did the explosive eruption occur?
14th march 2010 - ash eruption - eruption ended in May.
What were the primary effects?
- Everything covered In ash = day turned to night
- Ice caps melted = flooding
- highest plume reached 8km
Secondary effects of eruption
- Flights canceled (5days): no planes as ash eroded metal, clogs cooling and fuel systems and melts to form glassy deposits in the jet engines.
- Flooding due to melting glaciers
- 500 farmers evacuated
- Kenya lost $3.8 million dollars a day due to shut down of perishable good export and 50000 farmers temporarily unemployed.
Were is eyjafjallajokul located?
South of Iceland, part of europe, situated south of the arctic circle.
When was the las eruption?
1823
When did the eruptions end?
May
When did the eruptions begin?
March 2010
describe the eruption.
- Magma forced its way through the earths crust from the mantle.
- It found a weakness near the volcanoes summit and burst through.
- The magma experiences a magma drop= gasses fizz.
- Magma is ejected from volcano.
- cold air solidifies the particles
- particles are driven up into the atmosphere by the energy and heat of the eruption.
Spell the name of the volcano
Eyjafjallajökull
Positive effects:
- fertile soil
* tourist attraction (sell ash for lots of money)
Negative impacts:
Farmers left unemployed, floods, ash covering everything = animals couldn’t graze.
Initial response:
- police and rescue teams to evacuate people.
- european airspace closed down = knock on effect on businesses and tourists.
- machines used to clear rivers & prevent water breaking through flood defences.
- move animals to shelter.
Long term responses:
- find ways of monitoring ash concentration and gasses.
- improve forecast models = future disruptions can be minimised.
- rebuild roads and bridges.
