A strong 7.3 magnitude undersea earthquake hit the northeastern coast of Japan and the authorities issued an immediate tsunami alert Friday, reported BBC news.

The coast of Miyagi Prefecture in the northeastern Japan was issued a warning for a one-meter tsunami, which was destructed by the previous earthquake and tsunami in March 2011. The quake had led to fuel-rod meltdowns at the Fukushima nuclear plant, which as a result contaminated food and water, according to NDTV.

Nuclear plant operator Tokyo Electric Power told AFP that no reported no problems at the site. "No abnormalities have been recorded on instruments at Fukushima Daiichi nulcear plant's six reactors," a TEPCO spokesman told AFP. "All workers were ordered to take shelter inside buildings at the Fukushima plant. No abnormalities were confirmed with the radiation monitoring posts at the Fukushima plant. No abnormalities were seen with the water processing facilities."

The warning that was issued said the tsunami could be as high as 2meters. The buildings in the capital city, Tokyo, felt the quake for several minutes. Sayaka Matsumoto, communications officer, at the Japan Red Cross told Al Jazeera that she felt the shake at their company's headquarters in Tokyo and was nearly half the size of 11 March, 2011  earthquake.

According to Jiji Press report, Prime Minister Yoshihiko Noda left to his office as he will also be monitoring the conditions.