Case Study - Japan Earthquake

Two contemporary contrasting case studies for earthquake hazards

state the magnitude of the japan 2022 earthquake

7.8

What was the plate boundary?

Destructive subduction

How deep was the focus?

60km

What was the GDP per capita?

$40,113

How far was it from the population?

50km from coast

what was the date of the earthquake (day, month, and year)

16/3/2022

was the earthquake in the day or at night

night

What were the secondary hazards?

tsunami and aftershocks

how many doctors per 1000 are there

2\.5

why were people well-prepared for the earthquake (2 things)

earthquake drills in schools, regular exposure to small earthquakes

what was the average age of the population

48

What was the population density

130 people per km^2

What was the planning with military response?

Police directed traffic amid the power cuts

what areas of japan are geographically isolated

small islands

list primary impacts (3)

500 closed schools, power cuts in the east, collapse of a shrine and few buildings

What were the protections using technology?

many advanced seismographs provide constant information and warnings

list evacuation efforts (2)

7 evacuation shelters created in ishinomaki, 1961 evacuated in watari

state building codes making earthquakes safer (2)

rubber bearings in foundations allows flexibility of buildings, lifts shut automatically

outline the warning systems

Japanese meterorological agency immediately alerts people. warnings given 10 seconds after earthquake detected

Environmental impacts (3)

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cancelled bullet trains leading to more cross-country flights, cracks in roads, sinkhole