The agency said the quake, with a maximum intensity of four on the Japanese scale of seven, was felt in Tokyo, 500 miles (800kms) south of Aomori.

• 气象部门宣称，按日本的7级制计算，这次地震的最大烈度为4级，在东京可感。 东京位于青森以南500英里(800公里)。