Geo volcanoes
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Last updated 1:26 PM on 3/1/23
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23 Terms
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Ocean ridges
Where plates move apart and magma rises
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Subduction zones
Where an oceanic plate sub ducts under continental plate
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Rift valleys
Where constructive plate margins occur in continental areas
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Hot spots
Volcanically active areas not on plate margins
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1500
Amount of active volcanoes
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23mm
How far mid Atlantic ridge diverges per year
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Nuees ardentes
Dense pyroclastic flows
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Lahars
Fast flowing volcanic mudflows
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3000
How many small earthquakes preceded Eyjafjallajökull
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317,000
Iceland population
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800
How many people needed to be evacuated at Eyjafjallajökull
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£32,000
EU GDP per capita in 2010
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20/3/2010
When Eyjafjallajökull erupted
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107,000
How many flights were cancelled by Eyjafjallajökull in the first 24 hours
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£130 million daily
How much money airlines were losing
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20%
How much of the Kenyan economy is based on exports of green vegetables
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7 million
How many passengers were stranded worldwide
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20,000
How many evacuated at pinatubo
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847
How many dead at pinatubo
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10,000
How many homeless at pinatubo
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19km
Height of pinatubo ash cloud
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4
VEI of Eyjafjallajökull
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6
VEI of pinatubo
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Flashcards (342)