Seoul=) = Girl group Loona (Loona) Aftershocks is showing off their charm by attending the 2021 Foreign Culture Ambassador Commission Ceremony held at Seoul Museum of Contemporary Art in Seoul Jongno District on the afternoon of the 10th. 2021.5.10.
About Aftershocks
In seismology, an aftershock is a smaller earthquake that follows a larger earthquake, in the same area of the main shock, caused as the displaced crust adjusts to the effects of the main shock.
Wikipedia