From the colder to hotter parts of the earths structure, state the name and whether it is solid or liquid.
- Outer core/Liquid
- Inner core/Solid
What do Volcanos tend to be near?
- Plate boundarys
Why would you want to live near a volcano?
- Fertile volcanic soils
- Geo thermal power
What type of eruption was Eyjafjallajokull?
- A phreato-magmatic eruption
What are some features of a Basaltic eruption?
- Low in silica
- Runny lava
- Gas escapes easily
What are some features of a Rhyolitic eruption?
- High in silica
- Viscous lava
- Gas escapes explosivly
What is the very good term for ash?
What is a very good term for glacial outbursts?
State some facts about Eyjafjallajokull
- 800 people evacuated from Iceland
- 17000 flights cancelled in the first 24hours
- 8km plume of ash
- Olafer and Gudni Egutsen run a farm near the volcano
- It erupted on the 14th April 2010
- 20 countrys closed their airspace for 6 days
What are the two types of plate boundarys?
- Destructive plate boundarys = Plates move towards each other denser oceanic forced into mantle and destroyed. Often creates volcanos and ocean trenches.
- Constuctive plate boundarys = Two plates move away from each other. This means magma rises from the mantle to fill the gap which cools, creating new crust.
- Conservative plate boundarys = Plates move sideways past each other. Crust isn't created or destroyed.
When did the Nepal earthquake occur?
What magnitude was the Nepal earthquake?
Why was the Nepal earthquake so devistating?
- Nepal has high population density
- The people were unprepared
- Poor infrastructure
- Education poor
- Less aid for injured people
State four types of building technology that can be used to reduce the impact of earthquake damage.
- A strong flexible steel frame
- Shock absorbers
- Very deep foundations
- Strong safety glass prevents windows braking
Monitoring for tectonic activity is another way to prevent earthquake and volcano damage. What are some ways of monitoring tectonic activity?
- For VOLCANOS
- Satelite images
- Seismic waves
- Gas emissions
- For EARTHQUAKES
- Animal behavior
- Laser beams that detect plate movement
What was the largest earthquake ever?
- 2011 Japan (magnitude 9.0) and (20,896 deaths)
What was the deadliest earthquake ever?
- Haiti (magnitute 7.0) and (316,000 deaths)
How did Iceland predict, prepare for Eyjafyallayokul?