Global
Massive earthquake hits off Kuril Islands
The quake, which struck at 5:24 a.m. British time, was at a depth of 24.3 miles (38 km), USGS said.
There was no immediate tsunami warning from the quake, according to the Hawaii-based Pacific Tsunami Warning Centre website.
Japan's Meteorological Agency Web site said only a minor tremor was recorded in the northeast of Japan's northern island of Hokkaido, and no risk was seen of a tsunami in Japan.
(Editing by Jerry Norton)