Earthquake and Tsunami near Sendai, Japan
acquired March 18, 2011 download large image (7 MB, JPEG, 4177x6832)
acquired March 18, 2011 download Google Earth file (KML)

A swath of agricultural fields lies between the Japanese city of Sendai and Sendai Bay, and the area was one of the hardest hit by the tsunami on March 11, 2011. The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured this natural-color image of the area on March 18, 2011.

One week after the magnitude-9.0 earthquake and resulting tsunami, the fields nearest the ocean were still covered with standing water. It is possible that some areas could remain that way, as the ground level sank along the east coast of Japan during the earthquake. The same tectonic forces that lifted up the seafloor to create the tsunami also caused land to subside on the mainland. Liquefaction of soil and sediments may also have caused settling.

The Japan Meteorological Agency warned that the risk of the submergence and flood in these regions has become larger and that coastal residents should "pay special attention to the tide level...especially during the spring tide."

On the outskirts of the Sendai suburbs, fields that had escaped inundation or had already drained were later covered with snow, as was much of the Sendai metropolitan area when a cold front brought winds and snow to northeastern Japan. The iced highways hampered search-and-rescue efforts and added to the misery of 500,000 evacuees, reported Agence France-Presse. In some places, the snow was heavy enough to add dangerous weight to already damaged buildings. According to aid groups, however, most of the quake and tsunami survivors had access to adequate shelter, water, food, and medical attention.

Unfortunately for the displaced, harsh weather was expected to continue. As of March 19, 2011 (Japanese time zone), forecasts from Japan’s Meteorological Agency called for continuing cold temperatures along with rain or snow for much of the country over the next week. The forecast for Sendai included low temperatures and high probabilities of rain.

  1. References

  2. Japan Meteorological Agency. Increase of the risk of the submergence and flood during the spring tide associated with the ground sink caused by the 2011 off the Pacific coast of Tohoku Earthquake. Accessed March 18, 2011 (U.S. time zones).
  3. Japan Meteorological Agency. One-week Forecasts. Accessed March 18, 2011 (U.S. time zones).
  4. Macnamara, K. (2011, March 17). Bitter cold deepens Japan quake misery. Agence France-Presse. Accessed March 18, 2011.
  5. Ortiz, F. (2011, March 18). Aid groups say most of Japan displaced have basics. Reuters. Accessed March 18, 2011.
  6. NASA Earth Observatory image created by Jesse Allen and Robert Simmon, using EO-1 ALI data provided courtesy of the NASA EO-1 team. Caption by Michon Scott and Mike Carlowicz.

    Instrument(s): 
    EO-1 - ALI

Earthquake and Tsunami near Sendai, Japan

March 20, 2011
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