Magnitude 6.1 Earthquake Shakes Japan's Hokkaido, No Tsunami Warning

No tsunami warning was issued after the offshore quake, which shook the coastal cities of Kushiro and Nemuro.

A magnitude 6.1 earthquake struck off Hokkaido in northern Japan on Saturday night, the US Geological Survey and the Japan Meteorological Agency said.

No tsunami warning was issued after the offshore quake, which shook the coastal cities of Kushiro and Nemuro.

Major Japanese media outlets carried no immediate reports of damage or injuries.

The quake hit at 10:27 pm (1327 GMT) at a depth of around 43 kilometres (27 miles), the USGS said.