Sky-watcher captures strange red flash on the Moon

On December 1, 2019 Peter Lawrence of Thornton, England recorded a strange red flash on the moon. What caused the red flash?

Credit image and video clip Peter Lawrence via Spaceweather.com

Something exploded on the moon or was it a lunar wave, a hologram or perhaps a glitch in the matrix or something else?

According to atmospheric optics expert Les Cowley "The technical name of this event is a 'Ducted Mock-mirage Red Flash.' As the Moon set, it dipped into a strong temperature inversion layer with warm air above cooler air - light rays bend when they cross the layers, in this case strongly enough that 'ducting' occurs -- that is, the rays bounce up and down, trapped in an optical duct", reports spaceweather.

Lawrence created a short clip of the strange red flash.