Nevado Del Ruiz Flashcards
Where
Colombia border part of Andes in armero
Margin
Destructive of nazca plate subducted under South American plate part of Andean volcano belt
When was first signs
1984 volcanic activity of fumerole activity and sulphur deposits
What did did it erupt
9.09pm on a stormy night
Eruption
30 km into air 35 million metric tons of material erupted
Main killer
Pyroclastic flow melted snow and glaciers travelling 40 mph Lahars
How much crop destroyed
3400 hectares of crops
How many hospitals destroyed and schools
2 and 50
What did Lahars do to soil
Made fertile
How many animals killed
150,000
Overall cost
7.7 billion 20% GDP in 1985
How many homeless
8000
How many killed
23,000
Why so bad in armero
3/4 killed as on eastern flank two rivers meet at confluence doubling power of Lahars
What did Red Cross do
Organised rescue while helicopters airlifted victims to hospitals