Tohoku Earthquake

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  • Created by: ccraston
  • Created on: 27-05-17 20:35
Date?
11th March 2011
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Plate Boundary?
North American and Eurasian
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Years of stress build up?
200
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Distance from Japan?
100km off the coast
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Plate tectonics in Japan
4 plate boundaries and has 25% of the worlds earthquakes
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Warning?
alerts sent automatically after P waves detection
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Impact of earthquake?
most buildings were still standing, 10m of soil liquefied causing lots of damage around Tokyo
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Japanese protection:
making buildings earthquake resistant, raising public awareness about disaster prevention, improve prediction, earthquake-resistanc standards, emergency supplies, evacuate routes, 'smart meters' to reduce the risk of fires after earthquakes
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Time taken for first tsunami wave?
20 minutes after the earthquake
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Speed?
800mph in open water
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Height at coast?
10m
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Height in Miyako?
40m due to funneling
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Kahoku?
8km inland, isolated mountain community flooded
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effectiveness of tsunami walls?
40% of Japan has tsunami walls of 10m but the earthquake caused the coastline to drop 1m so the tsunami walls offered little protection
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Dead?
15,000
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Injured?
27,00
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Buildings destroyed?
130,000
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Buildings damaged?
700,000
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Homes without power?
4.4 million
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Home without water?
1.5 million
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Overall cost?
$235 billion. Most expensive natural disaster
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Towns destroyed?
Offanatu, Sendai, Miyako, Minamisamriko
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Earthquake effect on Fukashima Daiichi nuclear plant?
knocked out the power supply, shut down reactors automatically when earthquake warning, back up generators cooled the reactors
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Tsunami effect?
flooded diesel generators, back up generators only had 8 hours charge, damaged from earthquake meant replacement batteries did not make it to Fukashima in time
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Overall effect?
3 nuclear meltdowns occurred and radioactive material released
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Other cards in this set

Card 2

Front

Plate Boundary?

Back

North American and Eurasian

Card 3

Front

Years of stress build up?

Back

Preview of the front of card 3

Card 4

Front

Distance from Japan?

Back

Preview of the front of card 4

Card 5

Front

Plate tectonics in Japan

Back

Preview of the front of card 5
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