Placa tectónica deslocada
Japan's Earthquake Research Committee estimates Friday's devastating earthquake forced the tectonic plate on which Japan sits to spring eastward by about 20 meters.
Sixteen experts including professor emeritus of Tokyo University Katsuyuki Abe analyzed tectonic movements in the focal zone of the Friday quake, at the second ad hoc meeting at the Education and Science Ministry.
The committee also estimates the focal zone may span from waters off the northern Sanriku coast of Tohoku region to part of the Boso Peninsula, Chiba Prefecture near Tokyo. The committee says the zone is about 400 kilometers long and 200 kilometers wide.
The researchers also say the quake caused some parts of Iwate through Fukushima prefectures to sink a maximum of about 75 centimeters.
The land remains submerged, even after the tsunami subsided.Monday, March 14, 2011 01:51 +0900 (JST)
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