VOLCANO CASE STUDY BBC BITESIZE

What was unusual about the Eyjafjallajokull eruption of ? Composite volcanoes Composite volcanoes are found on destructive plate margins , where the oceanic crust sinks beneath the continental crust. The large volume of material from the last Yellowstone eruption caused the ground to collapse, creating a depression called a caldera. Ash clouds would migrate across the globe reaching the UK in 5 days , blanketing soil, clogging machinery, causing respiratory and health problems for people. It happened in the desert. The ash cloud could be seen from space and the volcano increased in size greatly due to lava deposition.

What was unusual about the Eyjafjallajokull eruption of ? Why did the Eyjafjallajokull volcano lead to flooding? Tiltmeters showed that the volcanic dome had begun to bulge. For this reason, they’re also known as stratovolcanoes. Many homes and buildings have been destroyed, including the only hospital, the airport and many roads. What was one social impact of the Nyamuragira eruption of ?

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During this time, Montserrat was devastated by pyroclastic flows. Many homes and buildings have been destroyed, including the only hospital, the airport and many roads. Mauna Loa is a shield volcano.

The vocano types of volcano form in different places and have very different characteristics.

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If a supervolcano was to erupt there would be a global catastrophe. Crops would be destroyed due to ash fall and animals would die due to respiratory problems and starvation. People were asked to stay indoors because of the ash in the air. Chile accepted aid and support from other South American countries and the voldano world. Volcanoes can provide people with many benefits such as: You might be asked to consider the values and attitudes or opinions of people involved in the vllcano, such as refugees or aid workers for example.

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Before it had been dormant for over years.

Volcanoes – CCEA – Revision 5 – GCSE Geography – BBC Bitesize

It happened underneath the sea. Composite volcanoes Composite volcanoes are found on destructive plate marginswhere the oceanic crust sinks beneath the continental bbx.

There are two main types of volcano – composite and voldano. In March there were first signs that the volcano would erupt. Despite the evacuations, 19 people were killed by the eruptions as a small group of people chose to stay behind to watch over their crops. Composite volcanoes have the following characteristics: The graphic shows the progress of the eruption and its impact on the island. Mount Merapi meaning Mountain of Fire is an active stratovolcano or composite volcano located in south-east Asia, on the island of Java, Indonesia, a low income country LIC.

volcano case study bbc bitesize

Why did cholera spread following the eruption of the Nyamuragira volcano? It is tectonically active with earthquakes and occasional volcanic eruptions.

Powerful volcanic eruptions

A hydrothermal feature at Yellowstone. The most intense eruptions occurred in Merapi is located in one of the most densely populated parts of Java with over 11, people living on the slopes of the mountain. Ejecta – a supervolcano will eject at least 1,km3 of vklcano compared to 1km3 of a normal volcano. Some of this will cause massive lahar flows.

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Pyroclastic event — Everything within a mile radius at least of the eruption will be destroyed. The small population of the island 11, people was evacuated in to the north of Montserrat as well as to neighbouring islands and the UK.

What are the characteristics of a shield volcano? The Chilean government plans in the long term to set up monitoring for all the high-risk volcanoes in the country and to create an early warning system.

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The eruption was violent, producing lava, ash, pyroclastic flows and minor earthquakes. The caldera is 55 km by 80 km wide. Layers of ash and lava. Changing a way of life — Homes would be destroyed; air, road and rail travel and transport would grind to a halt, water supplies would stuxy contaminated — life as we know it would change radically and survival would become increasingly difficult.

Food supply – Crops and food supplies would suffer hugely and prices would increase dramatically.