Tohoku Earthquake Casestudy Flashcards
GDP?
$38,492 USD
What was the tectonic setting?
Pacific plate was subducted under the Eurasian plate. Converging plate boundary.
Population density?
336 people per square kilometre
When was the earthquake?
11th march 2011
What was the magnitude?
9.0 and caused the ground to shake for 6 minutes.
Earthquake impacts?
20 people killed from the earthquake, as they had earthquake proof buildings.
How big and fast was the tsunami?
Travelled 800 km per hour and was 10m in height.
How many people were killed and injured by the tsunami?
15,863 deaths and 6,150 injured.
92.5% died from drowning.
How many buildings were destroyed?
45,700 destroyed and 144,300 were damaged.
How much did recovery cost?
£235 billion
Environmental impacts?
Earthquake triggered 10m tsunamis.
Liquefaction
Many animals were killed.
Economic impacts?
Cost £235 billion
Yen value fell sharply
530,000 tourist departed the country
Tsunami management?
10m high sea wall, which dropped 1m in height due to subsidence.
A text message and warning signal alerted everyone 3 minutes after the earthquake. Have people extra 20 minutes to evacuate.
Earthquake management?
Local schools and work places learned ‘drop,cover,hold’.
Used seismometer to detect the earthquake.
Short term responses?
Warning system 3 minutes after the earthquake - alerted tsunami.
59 expert rescuers, 2 sniffer dogs, and 4 medics came with 11 tones of resources.
91 countries offered aid
