A strong 6.8-magnitude earthquake struck the northwest of the Japan, triggering a small tsunami on Tuesday, June 18th, AFP has reported.
According to the nation's meteorological agency, a wave of one metre (three feet) is expected to hit the coast of the Sea of Japan, north of Tokyo.
Public broadcaster NHK Officials announced that immediate precautionary measures have been taken to stop bullet train services in the region, adding that around 200 households suffered a power cut, but no abnormality was monitored at the nuclear power plants near the epicentre.
It was expected that some waves had already reached some coastlines around Yamagata and Niigata, in the northwest of the country, the meteorological agency pointed out.
This quake registered six on the Japanese scale, which goes up to seven. Japan sits on the Pacific "Ring of Fire" where many of the world's earthquakes and volcanic eruptions are recorded. Last June, a deadly tremor rocked the Osaka region, killing five people and injuring over 350.