A two-point-one magnitude earthquake struck near North Korea's nuclear test site on Thursday.

According to South Korea's Korea Meteorological Administration(KMA), the minor quake occurred at around 1:10 a.m. about 38 kilometers north of Kilju, North Hamgyong Province, where the North's Punggye-ri nuclear testing site is located.

The depth of the epicenter was estimated at ten kilometers.

The KMA said that the tremor appears to have occurred naturally.

A total of nine earthquakes with a magnitude of two or higher have been recorded so far this year on the Korean Peninsula.