earthquake

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when was the japanese earthquake?
march 11th 2011
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what magnitude?
9
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where was the epicentre?
100km off the coast
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what happened?
400-500km long segment of the north american plate, dragged down by the subducting pacific plate, slipped upwards 5-10m
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what then happened?
japan's warning system kicked in, which sent a text message to everyone
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what speed were the p-waves?
6km/s
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what speed were s-waves?
3km/s
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what area did it flood?
500sqkm
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order of places it hit
ofunato[north], sendai [south] and then miyako [north]
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what mass of water was lifted upwards?
6km mass, 1m high and 100km front to back
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what happened to sendai?
low-lying flat land thus nothing to stop it, airport recently built completely destroyed
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what happened in miyako?
built 10m sea walls, land subsided 1m, sea walls breached
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what happened to nuclear power plant?
fukishima, wave flooded diesel generators which were cooling reactor cores, nuclear disaster
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what was the aftershock in tokyo?
over 500, one was 6.2
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how many dided
20,000
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how many lived in temp shelters
1500
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how many homes still without running water?
1million and electricity cut off in 6million homes
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Card 2

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what magnitude?

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9

Card 3

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where was the epicentre?

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Card 4

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what happened?

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Card 5

Front

what then happened?

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