An earthquake with an estimated magnitude of 5.4 struck the northern Japanese island of Hokkaido early on Saturday morning.
The Meteorological Agency says the quake hit at around 4 AM. It says the focus was at a depth of 53 kilometers and was located off the Nemuro Peninsula.
The agency says there is no risk of a tsunami.
In the town of Nakashibetsu, the jolt registered 5 minus on the Japanese seismic intensity scale of 0 to 7.
Tremors with an intensity of 4 were detected in Nemuro City and in some other areas.