"A minor tsunami hit large swaths of the Tohoku region early Saturday, including in a city near the crippled Fukushima nuclear plant, after a strong 6.8-magnitude earthquake struck off the country’s Pacific coast.
There were no immediate reports of damage following the quake and tsunami, however, with authorities lifting all advisories roughly two hours later.
A Meteorological Agency official told a televised news conference that the quake appeared to be an aftershock of the massive March 11, 2011, earthquake.
Much of the coastline covered by the advisories Saturday is still recovering from the 2011 quake and tsunami disaster that killed more than 18,000 people and triggered a triple-meltdown crisis at the Fukushima No. 1 plant.
A minor tsunami of 20 cm (7.8 inches) was observed in Ishinomaki, Miyagi Prefecture, and Ofunato, Iwate Prefecture, the Meteorological Agency said Saturday.
Waves of 10 cm were also monitored in the city of Soma, roughly 40 km (25 miles) north of the Fukushima No. 1 plant, the agency said. The city suffered severe damage in the 2011 disaster."