2:46pm local time
People were awake and therefore able to respond quicker. Also people were likely to be at school/work at this time rather than at home
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Distance of the epicentre from the coast + name of the region affected
72km east of the Tohoku region
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Magnitude
9.0 MW
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Focus
Shallow
24km
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Tectonic Plates
Subduction of the Pacific Plate under the North American/Okhotsk plate
Japan is part of the Pacific Ring of Fire
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Japan's influence, economy and population
Global superpower
3rd largest economy
Densely populated at the coastline due to the mountainous terrain
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Percentage of earthquakes bigger than a magnitude 6 that occur in Japan
Aseismic buildings
Education
Fire proofing old wooden buildings
Land use zoning
Tsunami warning
Sea walls
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What makes buildings aseismic?
Steel frames and braces that move without collapsing
Rubber shock absorbers in the foundations
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Japan's earthquake education
Education programs from pre-school on how to stay safe
Earthquake drills at school
Earthquake simulators
Annual Earthquake Awareness days
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Land use zoning examples
Build open spaces for people to assemble
Avoid areas vulnerable to liquefaction
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How does the Tsunami Warning System work?
Offshore buoys detect tsunami waves which provides early warning through text messages and audio alarms for people to get to higher ground/more inland
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Why was the tsunami warning not fully successful?
Some people didn't take it seriously enough due to the false sense of security the sea walls gave
Only had 10 minutes warning
The sensors miscalculated it as a magnitude 8.1 which meant some locations were not warned when they should've
Some were knocked
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Japanese gov response to international aid
Requested no international aid
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Other cards in this set
Card 2
Front
Time
(+significance)
Back
2:46pm local time
People were awake and therefore able to respond quicker. Also people were likely to be at school/work at this time rather than at home
Card 3
Front
Distance of the epicentre from the coast + name of the region affected
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