Tsunami Warning Issued in Japan After Powerful Earthquake, 6.8 magnitude sea tremor, MASSIVE earthquake hits. A warning of a tsunami reaching as high as 3.3 feet has been issued in Japan after a powerful earthquake jolted the north west of the country. A magnitude 6.8 earthquake struck off northwestern Japan on Tuesday, triggering a two-hour tsunami advisory for three prefectures in the region.
Thousands of families lost electrical power and bullet train services were suspended, but there were no reports of serious injuries or damage from the magnitude 6.7 quake. The earthquake struck at 10.22pm local time (2.22pm BST) at a depth of about 10km about 53 miles northeast of the island of Honshu. The quake's epicentre was about 30 miles southwest of the city of Sakata, home to more than 100,000 people.
The nation's meteorological agency warned that a wave of one metre (three feet) could hit the coast of the Sea of Japan, north of Tokyo, but only small ripples of 10 centimetres were recorded. The agency warned of a possible tsunami along the coasts of the northwestern prefectures of Yamagata, Niigata and Ishikawa. Prime Minister Shinzo Abe told reporters his government would be "on the maximum alert" to prepare for possible rescue operations in the region.
Japan is one of the most earthquake- and tsunami-prone areas in the world. On March 11, 2011, a magnitude 9.0 offshore quake hit the northeast coast, causing a tsunami that took more than 18,000 lives and triggered meltdowns at the Fukushima nuclear power plant. An elderly man suffered a minor foot injury in Murakami city, where strong shaking was reported, public broadcaster NHK said.