A magnitude-7.3 earthquake just hit Fukushima, with damaged pavement blocks on the ground in front of JR Fukushima Station, shown here on March 17, 2022.

A magnitude-7.3 earthquake just hit Fukushima, with damaged pavement blocks on the ground in front of JR Fukushima Station, shown here on March 17, 2022. (Image credit: STR/JIJI PRESS/AFP via Getty Images)

The Japanese government issued a warning for the east coast of Japan after a powerful earthquake.

The Japan Meteorological Agency said the epicenter of the earthquake was 36 miles below the sea. The agency has issued a warning that waves of up to 3 feet (1 meter) could hit the prefectures.

The location of the worst nuclear accident since Chernobyl after an earthquake and a wave struck the region in 2011. More than 100,000 buildings were damaged or destroyed in the earthquake in Japan. The electrical grid that connects the nuclear power plant to the rest of the world was knocked out by the earthquake and the cooling system was shut down.

The prime minister of Japan wrote on the social networking site that the government was assessing the damage caused by the earthquake, but urged citizens to take action to save their lives.

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No casualties have been reported so far. The Tokyo Electric Power Company, which runs the no-longer-active Fukushima nuclear plant, wrote on its website that it was investigating the impact of the earthquake on its facilities, but that workers had found no abnormality at the site. There have been no reports of damage to the Onagawa nuclear power plant.

Hirokazu Matsuno, Japan's Chief Cabinet Secretary, warned citizens to be careful after the initial danger.

Matsuno said in a press conference that there is a chance of another earthquake in the next week or so.

It was originally published on Live Science.