Japan quake sparks tsunami warning

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An earthquake with a preliminary magnitude of 7.3 has struck off the coast of Fukushima in Japan, according to reports.

A tsunami warning for waves of up to three meters (10 feet) was also issued.

The Japan Meteorological Agency said the quake struck at a depth of 10 kilometres (six miles).

Fukushima is north of Tokyo and home to the nuclear power plant that was destroyed by a huge tsunami following an offshore earthquake in 2011.