japan eq

Question 1

primary/secondary hazards

Answer 1

primary - offshore eq mag. 7.9
secondary - tsunami waves of 15m and 200km/h
liquefaction
aftershocks

Question 2

social impacts

Answer 2

20000 deaths 6000 injuries and 2000 unaccounted for
125000 buildings destroyed and 1 mil damaged
heavy damage to roads and railways

Question 3

economic impacts

Answer 3

port of tokyo damaged
$235 billion in damage
reactor wiped 5-10% off Japan’s stock market value

Question 4

env. (fukushima)

Answer 4

near meltdown
cooling system knocked out, reactor overheated
100,000 evacuated

Question 5

management

Answer 5

EQ hazard map completed in 2010
every school has EQ drill each month
since 1995 kobe eq buildings have strict regulations
deep foundations, shock absorbers etc.
10m high sea wall

Question 6

response

Answer 6

after EQ all radio and tv switch to eq coverage
delivery of 26 mil single meal potions
army dispatched
construction of temporary housing 8 days after

Question 7

how effective?

Answer 7

1 min warning of eq
10-20 for tsunami
coastline fell by 1m reducing effectiveness of sea wall
sea wall prevented water getting back to sea
buildings couldnt cope with tsunami
response was effective
long term economic recovery still happening with Fukushima clean up