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Pre-tsunami Japan: 2010

Sendai Coastal Plain, Miyagi Prefecture

Sendai Coastal Plain: Photo of sign at Arahama Beach warning of the tsunami hazard in the area. [Larger version]	Sendai Coastal Plain: Arahama Beach, April 2010. Photo shows massive seawall for coastal protection. Most homes landward of the seawall were destroyed by the March 11, 2011 tsunami. [Larger version]
Sendai Coastal Plain: Arahama Beach, April 2010. View of detached offshore breakwater for coastal protection. [Larger version]	Sendai Coastal Plain: Rice Field Zone. Participants of the 3rd International Tsunami Field Symposium (April 2010) watch Daisuke Sugawara attempting to sample deposits from the AD 869 Jogan tsunami. [Larger version]
Sendai Coastal Plain: Rice Field Zone.Gouge core showing sand layers thought to be tsunami deposits from the AD 869 Jogan tsunami. [Larger version]	Sendai Coastal Plain: Rice Field Zone. Sediment peels showing flood plain deposits interbedded with tsunami deposits including those from the AD 869 Jogan tsunami. [Larger version]
Rice fields on the Sendai coastal plain (photograph taken in April, 2010). This area was completely inundated by the recent tsunami. [Larger version]	Namiwake Shrine erected after the AD 869 Jogan Tsunami (namiwake means “split of wave” or “limit of inundation”). Shrine is located about 5 km from present coast (April 2010). Post-tsunami satellite imagery shows this area was not impacted by the March 11 tsunami. [Larger version]

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More information on the 12 March 2011 aerial photography:

• Blog: “The 2011 off the coast of Tohoku Earthquake Tsunami Information”
  http://www.coastal.jp/tsunami2011/index.php?Satellite%2FAerial%20photographs
  • Before and after photos, side-by-side and orthorectified (“geometrically corrected”):
    http://saigai.gsi.go.jp/h23taiheiyo-ok/hikaku/arahama.pdf
    • Before: 10/31/2006: Click the “200 dpi” button on this page, for a higher-resolution photo
      http://archive.gsi.go.jp/airphoto/ViewPhotoServlet?workname=CTO20061X&courseno=C12&photono=16
    • http://archive.gsi.go.jp/airphoto/ViewPhotoServlet?workname=CTO20061X&courseno=C12&photono=16
    • After: 3/12/2011:
      http://cyberjapandata.gsi.go.jp/h23taiheiyo-ok/photo/sendai/thumb/C02/CTO-2010-4-C02_0123.jpg
    • Individual georeferenced JPEG quadrangles:
      http://saigai.gsi.go.jp/h23taiheiyo-zort/block/index_sendai.html
      The aerial photo of post-tsunami Sendai, shown above (on this page), is a composite of these two quadrangles:
      • Quad 533: http://saigai.jmc.or.jp/h23taiheiyo-ok/ortho/sendai/Ortho_JPEG/20110315-10QE533-A0.jpg and
      • Quad 631: http://saigai.jmc.or.jp/h23taiheiyo-ok/ortho/sendai/Ortho_JPEG/20110315-10QE631-A0.jpg

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