A powerful 7.5 magnitude earthquake struck off northern Japan late Monday, injuring 23 people and triggering a tsunami in Pacific coast communities, officials said. Authorities warned of possible aftershocks and an increased risk of a megaquake.
The Japanese government was still assessing damages from the tsunami and late-evening quake, which struck at about 11:15 p.m. in the Pacific Ocean, around 80 kilometers off the coast of Aomori, the northernmost prefecture of Japan’s main Honshu island.
It was just north of the Japanese coast that suffered the magnitude 9.0 quake and tsunami in 2011 that killed nearly 20,000 people and destroyed the Fukushima Daiichi nuclear power plant.
“You need to prepare, assuming that a disaster like that could happen again,” the meteorological agency’s earthquake and volcano division official Satoshi Harada said.
At 6:20 a.m. on Tuesday morning, authorities lifted all tsunami advisories for the Pacific coastline in northern Japan, NHK said.
The U.S. Geological Survey reported another earthquake, with a magnitude 5.1, early on Tuesday, about 122 kilometers (76 miles) south of Honcho, at a depth of 35 kilometers. No other details were immediately available.
