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Japan 2011 Earthquake (Facts and figure (9.0 richter and lasted 6 minutes,…
Japan 2011 Earthquake
Causes
Japan is located on the east edge of the Eurasian Plate.
where the oceanic Pacific Plate subducts under --> destructive plate boundary
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Impacts
300,000 buildings were completely destroyed
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The tsunami that resulted from the 2011 earthquake was composed of 10 waves, 1 km apart and in
places 15 metres high. Although 40% of Japan’s coastline has 10 metre high protective coastal walls,
the waves just went over the top.
Responses
Tsunami warning issued 3 mins after earthquake, to at least 50 nations
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Preparation
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- A warning often goes out after initial seismic waves are detected. When the warning is sounded, people take cover. -
Escalators are stopped,trains are stopped and gas mains are shut off.
- After this warning there may be as much as
one minute before the more destructive surface waves arrive.
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Predictions and Warnings
Japenese Meteorological Agency could not detect the P-Wave but sucessfully predicted the more damanging S-Wave
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