A 3.5 magnitude earthquake struck northern Jangsu, 216 km south of Seoul, on Saturday, South Korea's weather agency reported, with no casualties or damage being immediately reported.
The quake occurred in the region in North Jeolla Province at 7:07 p.m. according to the Korea Meteorological Administration (KMA). The KMA initially reported the earthquake was a magnitude 4.1 but shortly revised it down.
The depth was estimated at 6 km.
It was the third-strongest quake to occur on the Korean Peninsula or waters around it so far this year.
The province's fire authorities have confirmed receiving four reports related to the earthquake, but no damages have been reported so far.
Source: Yonhap News Agency