VOLCANO CASE STUDY BBC BITESIZE

The capital, Plymouth, has been covered in layers of ash and mud. It would spark climate change that might trigger a mini-ice age due to the amount of sulphur dioxide thrown into the atmosphere and reflecting solar radiation. Every year millions of visitors come to see the related features, such as geysers and hot springs. Ecosystem destruction – Whole ecosystems would be destroyed. It is the most active volcano in Indonesia, having erupted regularly since

Pyroclastic event — Everything within a mile radius at least of the eruption will be destroyed. What was unusual about the Eyjafjallajokull eruption of ? Rivers channels became blocked too causing flooding. European businesses lost trade. On Monday 25 October , Merapi erupted and continued to erupt until 30 November. Most of these people are poor farmers who depend on the richness of the soil for their living. Once Chances Peak had woken up it then remained active for five years.

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

volcano case study bbc bitesize

An example of a composite volcano is Mount Pinatubo in the Philippines. Beneath it is a destructive plate marginwhere the Nazca plate subducts under the South American plate. Some of this will cause massive lahar flows.

Mauna Loa is a shield volcano. It is tectonically active vilcano earthquakes and occasional volcanic eruptions. It happened underneath the sea. The government supported people socially and economically. People choose to live in volcanic areas despite the risks of an eruption. A hydrothermal feature at Yellowstone.

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Composite volcanoes have the following characteristics: Lahars a destructive volcanic landslide or mudflow would devastate whole communities.

There was a lack of sanitation in areas that people fled to. Before it had been dormant for over years.

Powerful volcanic eruptions – GCSE Geography – BBC Bitesize

Tiltmeters showed that the volcanic dome had begun to bulge. Where is the Nyiragongo volcano? Yellowstone is one example of a supervolcano. Travel was severely disrupted as many flights were cancelled. 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.

As it rained more than usual. Steep sides as the lava doesn’t flow very far before it solidifies. Ash cloud from Mount Merapi eruption. Once Chances Peak had woken up it then remained active for five years.

Powerful volcanic eruptions

Biteize capital, Plymouth, has been covered in layers of ash and mud. Types of volcano There are two main types of volcano – composite and shield.

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volcano case study bbc bitesize

Some roads were bbd. The most intense eruptions occurred in Airports and highways were closed due to the ash dangers, both in Chile and neighbouring countries, eg Argentina. The next eruption is predicted to have catastrophic worldwide effects. The caldera is 55 km by 80 km wide.

volcano case study bbc bitesize

Impacts The towns of Chaiten and Futaleufu were evacuated. Every year millions of visitors come to see the related features, such as geysers and hot springs.

Crops would be destroyed due to ash fall and animals would die due to respiratory problems and starvation. You might be asked to consider the values and attitudes or opinions of people involved in the eruption, such as refugees or aid workers for example. Many homes and buildings have been destroyed, including the only hospital, the airport and many roads. Acidic lavawhich is very viscous sticky. What is the bowl-shaped basin in the top of the volcano called?