A powerful 7. 6-magnitude earthquake struck late Monday off northern Japan, triggering a tsunami of up to 70 centimeters (27 inches) in Pacific coast communities and warnings of potentially higher surges, the Japanese Meteorological Agency said.

Several people were injured, media reports said.

The quake struck at about 11:15 p.m. (1415 GMT) in the Pacific Ocean about 80 kilometers (50 miles) off the coast of Aomori, the northernmost prefecture of Japan's main Honshu island, the agency said.

A tsunami of 70 centimeters was measured in Kuji port in Iwate prefecture, just south of Aomori, and tsunami levels of up to 50 centimeters struck other coastal communities in the region, the agency said.

The agency issued an alert for potential tsunami surges of up to 3 meters (10 feet) in some areas, and Chief Cabinet Secretary Minoru Kihara urged residents to immediately head to higher ground or take shelter inside buildings or evacuation centers until the alert is lifted.

Several people were injured at a hotel in the Aomori town of Hachinohe and a man in the town of Tohoku was slightly hurt when his car fell into a hole, public broadcaster NHK reported.

Several cases of fires were reported in Aomori, and about 90,000 residents were advised to take shelter at evacuation centers, the Fire and Disaster Management Agency said.

The quake struck about 80 kilometers (50 miles) northeast of Hachinohe, and about 50 kilometers (30 miles) below the sea surface, the meteorological agency said.

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.