Tokyo: A strong 6.8 magnitude earthquake
struck in waters off Okinawa island on Teusday, but there were no
concerns about a tsunami, the US and Japanese agencies said.
The quake occurred in the East China Sea, 218
kilometres (136 miles) west of Naha, Okinawa prefecture, the
US Geological Survey said. The quake`s depth was 222
kilometres (138 miles).
There were no immediate reports of injuries or damage
from the quake, which happened at 11:59 am (0259 GMT).
Japan, located at the junction of four tectonic
plates, experiences 20 per cent of the strongest quakes
recorded on Earth each year.
A devastating tsunami on March 11 left about 22,000
people dead or missing and triggered an atomic crisis at the
Fukushima Daiichi nuclear plant in the northeast of the