Tohoku MEDC tsunamis Flashcards
when did it happen?
march 11th 2011
what percentage of the worlds earthquakes does japan get a year?
30%
how far did the earthquake occur from the shore?
70km offshore
what magnitude was the earthquake?
9.0
why was the magnitude significant?
most powerful ever recorded in japan
how far did the earthquake move Honshu and which direction?
2.4m east
what height did the waves reach?
40m
what percentage of japans coastline have sea walls?
40%
was there much warning for the tsunami and how?
yes
- T was predicted 3 minutes after the earthquake (20 minutes to get to safety)
- warnings messages sent automatically to all mobile phones
- live television broadcast
how are buildings in japan build to prevent damage?
meant to be life safe and move with the waves to reduce damage
how much time did people have to get to safety?
20 minutes
what were the immediate responses?
-broadcast warning (even though 20 not sufficient amount of time)
japan sent in specially trained forces to help
-japanese red cross recieved $1billion in donations
-other countries sent in help such as UK
how much money was donated to Japanese red cross?
$1billion
how far did waves travel inland?
10kn
how many deaths did the event cause?
16,000
how many people went missing?
2,500
how many people were displaced?
300,000
how many buildings were destroyed?
127,000
what is fukashima?
nuclear power plant
what environment impacts occured?
-damage to nuclear power plant
what was the estimated economic cost to japan?
235 billion
what is the significance of the cost of the event?
most expensive natural disaster in history
how many day did it take for japan to fix a motorway after the event?
6 days
how long did it take for japan to rebuild most infrastructure?
one year
what happens to the public yearly?
they are trained in how to survive an earthquake
