A 8.8 magnitude earthquake hit Japan 's northeastern Honshu island on March 11, and a six-metre tsunami warning was issued.

Japan Meteorological Agency (JMA) said earlier that the quake was measured at 7.9 on the Richter scale but the US Geological Survey later upgraded the quake to 8.8 magnitude.

The quake, which occurred at 2:46 p.m. (05:46 GMT), was felt in almost all areas in Japan 's pacific coast, including Tokyo and Osaka .

The epicentre of the quake was located 382 kilometres northeast of Tokyo and at the depth of 10 kilometres under the seabed. It shook buildings for several minutes, halted bullet trains and sent people out into the street.

Meanwhile, cars and houses in Onahama city in Fukushima were swept away.

A tsunami watch has been issued for Russia , Mariana archipelago, Guam , Taiwan ( China ), the Philippines, Indonesia and U.S. state of Hawaii.

The government has set up a crisis management team to collect information and deal with possible risks./.