Strong 6.6-magnitude quake hits off Japan disaster zone

AFP – 30 mins ago...

A strong 6.6-magnitude undersea earthquake hit off the eastern coast of Japan's main Honshu island Saturday, not far from the area devastated by a huge quake and tsunami in March, US geologists said.

But there were no immediate reports of damage or casualties from the shallow early-morning quake, and no widespread tsunami warning.

The United States Geological Survey (USGS) reported the 36.2-kilometre (22.6-mile) deep quake hit 108 kilometres east-south-east of the coastal town of Hachinohe, 574 kilometres from the capital Tokyo, at 4:26 am (1926 GMT Friday).

The Pacific Tsunami Warning Center said that "no destructive widespread tsunami risk exists based on historical earthquake and tsunami data".

But it said that quakes of this size sometimes generate local tsunamis. "Authorities in the region of the epicentre should be aware of this," the centre said in a statement.

The Japan Meteorological Agency said that there might be some changes in sea levels due to the quake, but that there were no reports of damage or casualties and none were expected, according to the Kyodo news agency.

It said the quake jolted Iwate prefecture, an area badly hit by the 9.0-magnitude earthquake and tsunami on March 11 that left almost 20,000 dead or missing and sparked the worst nuclear crisis since Chernobyl.

Saturday's quake was followed by a smaller, 5.2-magnitude tremor, some 10.4 kilometres deep and 46 kilometres east-south-east of Hachinohe at 4:39 am (1939 GMT Friday), USGS said.

Then, at 6:11 am (2011 GMT Friday) a third, 5.5-magnitude quake jolted the area, this time at a depth of 19 kilometres, 144 kilometres east of Hachinohe.

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