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World Population Day

Japan Land Subsidence

Land subsidence and soil liquefaction near Shin-Urayasu Station elevator shaft

Geospatial Information Authority of Japan reported land subsidence on the height of triangulation station measured by GPS from previous value on 14 April 2011.

  • Miyako, Iwate - 0.50 m (1.64 ft)
  • Yamada, Iwate - 0.53 m (1.73 ft)
  • Ōtsuchi, Iwate - 0.35 m (1.14 ft)
  • Kamaishi, Iwate - 0.66 m (2.16 ft)
  • Ōfunato, Iwate - 0.73 m (2.39 ft)
  • Rikuzentakata, Iwate - 0.84 m (2.75 ft)
  • Kesennuma, Miyagi - 0.74 m (2.42 ft)
  • Minamisanriku, Miyagi - 0.69 m (2.26 ft)
  • Oshika Peninsula, Miyagi - 1.2 m (3.93 ft)
  • Ishinomaki, Miyagi - 0.78 m (2.55 ft)
  • Higashimatsushima, Miyagi - 0.43 m (1.41 ft)
  • Iwanuma, Miyagi - 0.47 m (1.54 ft)
  • Sōma, Fukushima - 0.29 m (0.95 ft)

Scientists say that the subsidence is permanent. As a result, the communities in question are now more susceptible to flooding during high tides.