Feb. 1 (Bloomberg) -- A magnitude 6.0 earthquake struck east of Japan at a depth of about 35 kilometers (21.7 miles), according to the U.S. Geological Survey.

The quake hit at 6:51 a.m. local time about 170 kilometers northeast of Tokyo, the USGS said.

Japan’s Fire and Disaster Management Agency, Nippon Oil Corp., Tokyo Electric Power Co. and Tohoku Electric Power Co. said there were no immediate reports of damage.

To contact the reporter on this story: Robert Fenner in Melbourne rfenner@bloomberg.net

Last Updated: January 31, 2009 20:03 EST