An earthquake was detected Sunday afternoon off the coast of Pohang,... in Korea's southeast, registering at magnitude 4-point-1.
There have been no casualties reported, and at that magnitude, there's not likely to be much damage.
According to the Korea Meteorological Agency, the quake occured at 12:53 PM -- around 50 kilomters away from Pohang... at a depth of 21 kilometers.
It was followed about an hour later by a tremor of magnitude 2-point-5.
Seismic activity in the area has risen in recent years.
A quake in 2017 damaged hundreds of buildings and injured dozens of people.