From Jm Madiedo via YouTube:
These images correspond to a lunar impact flash spotted by the telescopes operating in the framework of the MIDAS survey on Jan. 21, at 4:41:38 universal time (23:41:38 US eastern time). The impact took place during the totality phase of the lunar eclipse. The flash was produced by a rock (a meteoroid) that hit the lunar ground.
The MIDAS Survey is being conducted by the University of Huelva and the Institute of Astrophysics of Andalusia.