A magnitude-6.0 undersea earthquake hit off eastern Japan, the U.S. Geological Survey reported. No tsunami alert was issued.
There were no immediate reports of damage or injuries from the quake, which the USGS said happened at 4:53 am on Tuesday local time (1853 GMT yesterday).
The USGS said the quake hit some 107 kilometres (66 miles) east of Miyako, Japan, and some 327 kilometres (526 miles) northeast of Tokyo.
Japan’s Meteorological Agency and the U.S. National Oceanographic and Atmospheric Agency issued no tsunami warnings or alerts.