TOKYO — A strong earthquake struck Saturday off northern Japan, shaking buildings even in Tokyo and triggering a tsunami advisory for a part of the northern coast. No major damage was reported, but several people had minor injuries.
The U.S. Geological Survey put the strength of the quake at magnitude 7.0 and depth at 33.5 miles. The shaking started just before 6:10 p.m.
The quake was centered off the coast of Miyagi prefecture, in the country’s rugged northeast, which was heavily damaged during the huge earthquake and tsunami of 2011 that left more than 18,000 people dead.
Japan’s Meteorological Agency issued an advisory for a tsunami up to 3 feet in height for Miyagi prefecture immediately after the quake, but the agency lifted it about 90 minutes later.
Officials there said there were no immediate reports of damage.
The Fire and Disaster Management Agency said seven people were injured in Miyagi prefecture.
The strong temblor caused a temporary blackout in some areas and suspended bullet train services in the area, according to the East Japan Railway Co.
The Nuclear Regulation Authority said no abnormalities have been detected at nuclear power plants in the region, including the Fukushima Daiichi nuclear plant, which suffered meltdowns in the 2011 quake and tsunami.