Tokyo (CNN) -- A 6.0-magnitude earthquake shook eastern Japan Tuesday, the U.S. Geological Survey said, but no tsunami threat is expected.
The quake struck off the east coast of Honshu, the main island, at 8 p.m. local time (6 a.m. ET) with the focus estimated to be 10 kilometers below sea level, the USGS said.
The epicenter was about 316 miles from the capital, Tokyo, with the closest city, Morioka, just over 50 miles away, according to the USGS.
Based on current data, a destructive Pacific-wide tsunami is not expected and there is no tsunami threat to Hawaii, the Pacific Tsunami Warning Center said.
A smaller, 4.9-magnitude quake hit about 40 minutes earlier, with the center about 71 miles east of Tokyo, according to the USGS website.
Seiji Yamane of the Fire Department in Miyako City, one of the places where the 6.0 magnitude shock was most strongly felt, said there was no report of injuries or damage there.
He told CNN the quake seemed to last for about 40 seconds but it was not powerful enough to shake books from the shelves to the floor.
Japan's public broadcaster NHK said no irregular activity is reported from the nuclear plants in the area, citing power companies TEPCO and Tohoku Electric.
Just over a year ago, a 9.0-magnitude earthquake triggered a huge tsunami off Japan, resulting in thousands of deaths and the world's worst nuclear crisis in a quarter century.
CNN's Chie Kobayashi contributed to this report.