LEDC VOLCANO CASE STUDY A LEVEL

D refugees left the island and didn’t return. The ash plume was so thick in some parts of Argentina that schools, highways and airports were forced to close. Responses The national government brought in the army, air force and navy to evacuate the 5, locals and give them food and fresh water. EC The seaport and airport were covered in ash causing them to shut down. This is a destructive margin, where the denser Nazca plate is subducted beneath the Less dense continental lithosphere of the South American plate. S Little infrastructure left untouched in the South to help provide emergency access for people. The graphic shows the progress of the eruption and its impact on the island.

At this margin, clearly marked on the map and cross section opposite, there is oceanic to continental convergence. The presence of the volcano resulted in a growth in adventure tourism. In the first week of the current eruption, five airplanes encountered eruption-cloud ash, and several sustained significant engine damage. 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. D refugees left the island and didn’t return. This is a destructive margin, where the denser Nazca plate is subducted beneath the Less dense continental lithosphere of the South American plate. Airports and highways were closed due to the ash dangers, both in Chile and neighbouring countries, eg Argentina.

LEDC Volcano Case Study: Montserrat

This volcano has a history of eruptions but in human terms it is infrequent. This is very low frequency! Chile has got armed services however, and these would be instrumental in aid levdl the region, and Chile has a stable democratic government.

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A volcanic observatory was built to monitor the volcano. Sign up to Comment. Real-time seismic monitoring began studyy 16 th of Mayand that was conducted by the USGS, not a domestic agency.

The air pollution generated by the ash caused health problems for people.

People have returned to the island more recently. It is tectonically active with earthquakes and occasional volcanic eruptions.

Volcano Case Studies (MEDC AND LEDC) – Revision Notes in A Level and IB Geography

Responses The national government brought in the army, air force and navy to evacuate the 5, locals and give them food and fresh water. When the volcano began erupting in Mayit produced high Plinian eruption columns of ash, gas and rock.

The ash cloud was up to 17 kilometers high and was visible on satellite images for hundreds of kilometers over the Atlantic. The Andes mountain chain has over 40 active volcanoes and in total, so this part of the world is vulnerable to this type of hazard.

This is a destructive margin, where the denser Nazca plate is subducted vplcano the Less dense continental lithosphere of the South American plate. The most violent and intense eruptions occurred in Evacuations began from South to North, but it was a slow process. D Loss of income from industries, lower voolcano of living conditions and quality of ledcc.

ledc volcano case study a level

The Chilean Navy had managed to evacuate people initially and emergency measures included the following: 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. The nature of the hazard type, magnitude, frequency This volcano has a history of eruptions but in human terms it is infrequent. Volcanic mud flows called lahars blocked roads making local people even more isolated than usual.

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Services in the North gradually expanded. As the plate descends it causes earthquakes in the Benioff zone, and volcanoes occur here because of melting of the plate in the asthenosphere. Montserrat is a small island in the Caribbean. Long-term responses An exclusion zone was set up in the volcanic region. In May the volcano erupted after being dormant for 9, years.

At this margin, clearly marked on the map and cross section opposite, there is oceanic to continental convergence. Chile only has 20 volcanoes with completed geological leveel, 7 which have had hazard assessments and cass more that are monitored.

Thus, it can be argued that prediction, preparation and prevention of this hazard were poor. However, Chile is vulnerable to earthquake and volcanic events because of its tectonic setting at a subduction zone.

Both towns were coated in ash, as were local farms. In addition, regular passing storms from polar regions mixed with the ash to make the hazard even worse, creating lahars and river flooding as a result. In the volcano began to give off warning signs volcabo an eruption small earthquakes and eruptions of dust and ash.

ledc volcano case study a level

S Little infrastructure left untouched in the South to help provide emergency access for people. British citizenship was granted in

ledc volcano case study a level