Tohoku Earthquake 2011

2011

WHEN WAS jAPAN eARTHQUAKE

11 March 2011

Japan hdi

0.92

wat proportion of safe water access

100%

depth of eq

29km

wat occured

horizontal shaking and siplacement

where were landslides

Chiba

liquifeaction in

CHiba, tokyo and urayasu

Tsunami max run up height of

38m at Miyako

Tsunami was pacific wide, run up heights of

2.52m China, 2.5m Hawaii

coastal flooding ho far inlad

10km

aftershocks were

mnay 7-8 mw

coastline subsided by

0.6m

Fujishima nuclear meltdown caused in

antinuclear movement

Japanese live here by

choice: high quality of life, trust in warning meausres

japn is world leader in

Hazard management, reducing risk

why is there high opulation densities in cities

mountannous terrain

How many killed

15,000

How many missing

4647

what were majority of deaths caused by

Tsunami, drowinging

what porportion ar ages 60+, 70-90

66% 60+, 25% 70-90o

ld ag meant

sturggled to evcuate

cultural loss of

funeral traditions due to risk of disease

huge desturction to settlment,

place identity hugely dirsupted

Rikuzentaa experienced what % of deaths

8%, only had 1800 residents

total cost

$309bn

Fuiishima meltdwon created

long term radiatio eclusion zone

Stocks decreased for

Sony, Toyoto, Parasonic

How many power plants closed

11

mitigation agaisnt event

land use zoning, hard engineerring against tsunami d

ue to sheer magnitude of tsunami and event

Hard engineering overtopped, not possible to prevent event

earthquake was

mega thrust quake, - east japan subdction zone

tsunami defences only 10 tall, ovetopped by combo of

extreme magnitude and ladn subsidnce

JMA provide real time

monitriing systems, development of P-wave montiroing, Tsunami waring systems, hazard risk planning

JMA have coordinated

dissemination of waring s and disaster plnning

P-wave waring up to

40s before, allows for nuclear shutdowns

TSUNAMI Warning issued after 3 mins,

20mins ahead of arrival of waves

what is in place to prevent fire

retroiffted aseisimic desing J

apan has highly coordinated

lnad use oning

what is ongoing in japan

coomunity preparedness, education and annual drills

anual drills on aniversary of 1

923 tokyo eq (1st septmeber)

mitigation against loss is ok due to extreme

wealth of japan

japan has a holstic plan to rebuild both

physcially, economically and socially

coastal communities such as Rikuzentakata

rebuilt

consturcted sea wals that were

40ft

new cbd raised

10m above flooding / sea levels

mitigtion against loss reistricted by

extreme exodus of residents

tohoku earhtquake caused a pardigm shft

prevention now at evel 1:550 year tsunami dfences and prepradenss