A four-point-zero magnitude earthquake struck waters off South Korea's southwestern coast on Saturday, becoming this year's strongest earthquake reported on the Korean Peninsula.

According to the Korea Meteorological Administration(KMA), the earthquake occurred at around 9:40 a.m. Saturday, 124 kilometers west-southwest of Eocheong Island in Gunsan, North Jeolla Province. 

So far, authorities have not received any reports on seismic tremors or damage.

The KMA said a magnitude four earthquake can shake windows and lights and cause objects to fall from tables in areas close to the epicenter.

Some less-resistant buildings may see cracks on the walls or glass windows broken while signboards may also come off.

If additional quakes follow, people are advised to leave buildings after the shaking stops and evacuate to a large open space.

Thirty-six earthquakes measuring over two on the Richter scale have occurred on the Korean Peninsula so far this year. Three were recorded measuring over three, with Saturday's being the strongest.