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14 Cards in this Set
- Front
- Back
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Hazards created by earthquakes |
•Ground shaking •Land displacement - Asian 2004 Sumatra eq displaced about 15m • tsunamis (explain how they are made) Japan 2011 • volcano |
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Volcano hazards |
• lava flows - late 1980s the town kalapana Hawaii was destroyed by lava flows • pyroclastic flows - fluidised mixture of solid and other fragments that explode from the volcano Montserrat 1997 • Lahars - volcanic mudflows navado del ruiz Columbia 1985 it engulfed the village of chinchina And the city of armero --- this killed 22,000 of 28,000 residents •poisonous gasses - 1700 people found dead after lake nyos released CO2 gas from beneath the lake. This swept down the valley 50m thick at 70km/h |
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Impacts of tectonic events haiti - demographic |
Haiti EQ 2010
Demographic • 200,000 people died (falling buildings) •port au prince felt the worst effects (highly populated) • 2.3 million displaced resulting in enormous pressure on houses in other parts of the county • water supplies and hygiene led to cholera so in 2011 another 6,900 died
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Impacts of tectonic events- social |
• 1.5 mln homeless • 70% buildings collapsed severely impacting health and education in Haiti • concern of spreading disease - rotting corpses in fallen buildings • communities were destroyed- generally moved to grim camps • poor policing - sexual violent was reported high at this time |
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Impacts of tectonic events- economic |
• 60% all infrastructure was destroyed • 20% all jobs disappeared • $8 Bn cost estimate • many small businesses ruined - fewer jobs meant no money for rent |
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Impacts of tectonic events - demographic (tsunami) |
• 11th March 2011 • eq was 9.0 magnitude • 5th most powerful globally • 9m high wave • local nuclear power plants - radiation hazard
• around 15,500 deaths • elderly particularly vulnerable - short and long term medical assistance • 65% deaths <60 and 24% over 70 • 200,000 people evacuated and displaced |
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Impacts of tectonic events- social |
• 45,700 buildings destroyed • many without water and electricity • within 10 days of the tsunami nearly half a million people were living in evacuation facilities • pride affected as they had to scavenge for food in bins |
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Impacts of tectonic events- social |
• 45,700 buildings destroyed • many without water and electricity • within 10 days of the tsunami nearly half a million people were living in evacuation facilities • pride affected as they had to scavenge for food in bins |
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Impacts of tectonic events- economic |
•$360 Bn damage - on top of a recession • damage and the shutting down of power plants meant they had to import oil to replace generation capacity • key ports and airports were closed damaging trade - Toyota, Nissan etc. |
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Montserrat eruption - impacts ( demographic) |
• 1996/1997 intense eruptions • 19 people killed • overcrowded temporary shelters (unhygienic, disease risk) • half of the 12,000 population left the island • 3000 people arrived in nearby island Antigua pressure on resources • 4000 abandoned the capital city Plumouth |
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Montserrat eruption - social |
• huge distribution of communities • families had to survive awful conditions • food supplies and crops perished • people moved to the north and experienced harsher conditions than they're used ton |
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Montserrat eruption - social |
• huge distribution of communities • families had to survive awful conditions • food supplies and crops perished • people moved to the north and experienced harsher conditions than they're used ton |
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Monserrat eruption - economic |
• public services and utilities moved to the north costing £37 million • farming and fishing have been decimated - over 50% Island are unemployed • tourist industry greatly affected - but picked up in recent years • airports and ports destroyed - GDP decreased by 21.5% in 1996 |
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Regional impacts - Boxing Day 2004 Asian tsunami |
• wider impact than all the other case studies • 9 mag eq triggered a Tsunami 12m high • death toll meant it was the deadliest eq since 1990 - most temper parts greatly affected • cost $5.5bn • wider region impacts - 2mln people lost their jobs 410,000 housing units destroyed 4mln will now fall into poverty 500,000 injured 294,000 dead/missing • 15,000 killed in India • 7,000 killed in Thailand beach resorts • Sumatra 12m high waves swept 2km inshore killing 130,000 and 80% province destroyed |
