A full moon at apogee is about fourteen per cent smaller and thirty per cent dimmer than one at perigee, and it happens just as often. There is no folklore about it whatsoever.

Micromoon is a back-formation from supermoon and dates from the 2010s. That the small one has no tradition and no coverage while the large one has both says something useful about how lunar lore is actually generated: by what is worth remarking on, which is not the same as what is happening.