Environment
Strong earthquake shook Japan
On the morning of September 17, a magnitude 6.6 earthquake struck off the east side of Honshu, not far from the 9-magnitude quake and devastating tsunami on March 11.
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On the morning of September 17, a magnitude 6.6 earthquake struck off the east side of Honshu, not far from the 9-magnitude quake and devastating tsunami on March 11.
Seismic ocean floor can only create tsunamis under certain conditions.