A powerful earthquake, measuring magnitude 7.3, has struck Japan, triggering a tsunami evacuation warning.
A powerful earthquake rocked northern Japan on Tuesday, the Japan Meteorological Agency said, generating a tsunami that hit the same northern Pacific coast devastated by a massive quake, tsunami and nuclear disaster in 2011.
The earthquake, which was felt in Tokyo, had a preliminary magnitude of 7.3 and was centered off the coast of Fukushima prefecture at a depth of about 10 km (6 miles), the agency said.
A tsunami of up to 1 meter (3 feet) had been observed around Fukushima following the quake which struck at 5:59 a.m. (3.59 p.m. ET), public broadcaster NHK said, after warning of waves of up to 3 meters (10 feet) has been issued.