Eruption Case Studies: 2011 vs. 2008 0.0 / 5 ? GeographyCase studiesA2/A-levelAQA Created by: [email protected]Created on: 06-06-16 12:46 (MEDC) Iceland eruption was in 2010 1 of 46 Occurred on what plate boundaryr Constructive 2 of 46 Name the 2 plates N American and Eurasian 3 of 46 What is Iceland? A Hot Spot 4 of 46 Spell the name of the volcano Eyjafjallajokull (Eyjaf-jalla-jokull) 5 of 46 Was the volcano monitored? Yes, carefully 6 of 46 Warning signs? Changes in Hot Springs temperature and Land Deformation 7 of 46 (Primary Effects) Where did the eruption occur in the volcano? Under the ice cap 8 of 46 What did this cause? Explosive power vaporised the ice 9 of 46 Magma was cooled crreating Glass like shards 10 of 46 How far was ash carried into the atmosphere? 9km 11 of 46 (Secondary Effects) What did the melted ice cause? and what effect? Flooding - washed away roads and infrastructure 12 of 46 Ash mixed with melt water to form? Lahars 13 of 46 Ash fall had a depth of 10cm 14 of 46 What did this do to the agriculture? Killed crops (less food for cattle), tainted the water supply 15 of 46 Effect on tourism? Actually increased tourism, however no European visitors due to the No Fly Zone 16 of 46 What direction did the ash travel? what effect did this have on air travel? South East in the Jet Stream, shut down air travel over fears of damaging the engines 17 of 46 How many passengers stranded? 7 million 18 of 46 Airline industry total losses? £1.2 billion over the 6 days 19 of 46 Who benefitted from the stranded tourists? Hotels, Trains etc, stayed for longer and spent more money 20 of 46 (Responses) Who were evacuated? Icelandic locals in villages most at risk of flooding 21 of 46 How did they prevent bridges from being destroyed? Diverted the water flow away 22 of 46 What other safety precautions did they take? Closed the air space 23 of 46 What occurred as a result of the eruption concerning air travel? Research into engine design, formed a safe level of ash concentrations to fly in - helpful in future eruptions 24 of 46 (LEDC) What part of Chile did the eruption take place in? Chaiten 25 of 46 What year? 2008 26 of 46 What type of plate margin? Destructive - Nazca sub ducted under South American 27 of 46 When was last eruption? 9,400 years ago 28 of 46 Monitored properly? No, due to it being dormant/nearly extinct 29 of 46 (Primary Effects) How far did ash travel into atmosphere? 17km (c. to 9km Iceland) 30 of 46 What did the falling ash cause? Suffocation of farm animals 31 of 46 What did the ash combine with to form Lahars? A passing thunder storm 32 of 46 What did the lahars cause? Blockage of rivers leading to flooding 33 of 46 How many deaths? 1 - caused by stress 34 of 46 What % was flooded? What % was completely destroyed? 90% flooded, 30% completely destroyed 35 of 46 (Secondary Effects) What happened to air travel? Hundreds of flights cancelled over Argentina 36 of 46 What did the ash fall close? Schools and Highways 37 of 46 What happened to the groundwater supplies? Became contaminated with ash 38 of 46 The damage to what hampered rescue operations? The airport and harbour 39 of 46 Lahars deposited mud to a height of? and what did this cause the River Chaiten to do? 1m thick, carve a new path right through Chaitne 40 of 46 (Responses) How many residents evacuated? 4,000 - by Navy 41 of 46 What did Chaiten officials distribute? Fresh water and face masks 42 of 46 How large was the exclusion zone around Chaiten? 50km 43 of 46 Monthly stipend of how much to victims? Around $2,200 44 of 46 90 day what for Businesses? 90 day freeze of loan payments to help businesses 45 of 46 What was created as a direct result of the volcano? Volcano Disaster Assistance Program - monitoring and prediction of subsequent eruptions 46 of 46
A2 Geography, Edexcel, unit 4, tectonic hazards option- case study grid. 5.0 / 5 based on 1 rating Teacher recommended
Comments
No comments have yet been made