Yuzhno-Sakhalinsk, Russia -- A mild earthquake measuring 4.0 on the Richter scale hit the Russian island of Sakhalin Saturday, the Russian Emergencies Ministry says.

The ministry's Sakhalin regional department said the earthquake on the North Pacific island controlled by Russia occurred nearly 20 miles north of the city of Yuzhno-Sakhalinsk, ITAR-TASS reported.

The Yuzhno-Sakhalinsk seismic station said the epicenter of the earthquake was more than 6 miles underground.

The ministry department told ITAR-TASS that Saturday's tremor did not result in any fatalities, injuries or significant damage.