The epicenter of the earthquake was about 31 km (19 miles) east-southeast of Chitose at a depth of 123 km (76 miles).
There have been no initial reports of damage or casualties.
The earthquake poses no tsunami risk, according to the agency.
The epicenter of the earthquake was about 31 km (19 miles) east-southeast of Chitose at a depth of 123 km (76 miles).
There have been no initial reports of damage or casualties.
The earthquake poses no tsunami risk, according to the agency.