tohoku

• When did the Tohoku earthquake occur?

  11th March 2011
• What was the magnitude of the Tohoku earthquake?

  9.0
• Where was the epicenter of the Tohoku earthquake located?

  100km East of Sendai
• How deep was the epicenter of the earthquake?

  24km deep
• What caused the tsunami following the earthquake?

  Sea water displacement from the earthquake
• How fast did the tsunami travel?

  Hundreds of km per hour
• What was significant about the earthquake in Japan's history?

  Largest since records began
• How many waves did the tsunami produce?

  10 waves
• How high were the tsunami waves?

  10m high
• How far inland did the tsunami surge?

  10km inland
• What was the impact of the tsunami on the tsunami defense walls?

  Overwhelmed and destroyed them
• What geological feature contributed to the vulnerability of the area?

  Warping of the Pacific Plate
• Why were only small earthquakes expected in the area?

  Due to older oceanic crust
• How did the coastline affect the tsunami's impact?

  Rugged and jagged coastline concentrated waves
• What was the primary effect of the tsunami on vegetation?

  95% of vegetation was destroyed
• What area was flooded by the tsunami?

  Almost 500km squared
• How many people were reported dead or missing after the disaster?

  Over 18,000
• What percentage of Minami-Sanriku's population died?

  Half of the population
• How many buildings were destroyed by the earthquake?

  18,000 buildings
• How many buildings were destroyed by the tsunami?

  100,000 buildings
• How many aftershocks occurred in the two weeks following the earthquake?

  700 aftershocks
• How many people were left homeless after the disaster?

  Half a million homeless
• What was the estimated damage cost to buildings?

  $300 billion
• How many homes lost electricity after the disaster?

  6 million homes
• How many people were without water after the disaster?

  1 million people
• What was the final death toll estimated to be?

  20,000-30,000
• What percentage of the victims were over 60 years old?

  65%
• What was the short-term impact on production?

  Supply chains were affected
• How many factories did Sony shut down?

  6 factories
• What was the financial loss for Sony?

  $2.9 billion
• How many jobs were lost at Panasonic?

  17,000 jobs
• What happened to the Fukushima power plant during the tsunami?

  It was destroyed by the tsunami
• What happened to the reactors at Fukushima when the earthquake occurred?

  They closed automatically
• What was damaged by the tsunami at Fukushima?

  Power supply cooling system
• What was the consequence of the pressure rising at Fukushima?

  Explosion releasing hydrogen gas
• How many people were evacuated from the Fukushima area?

  80,000 people
• What concerns arose regarding the Fukushima disaster?

  Radiation in the food chain
• What was one of the long-term responses to the disaster in 2013?

  New upgraded tsunami warning system
• What advisory body was set up by the government after the disaster?

  Reconstruction design council
• What was designated to encourage rapid rebuilding?

  Special zones for reconstruction