moonquake

[ moon-kweyk ]
/ ˈmunˌkweɪk /

noun

a seismic vibration of the moon's surface.

Origin of moonquake

First recorded in 1935–40; moon + (earth)quake

British Dictionary definitions for moonquake

moonquake
/ (ˈmuːnˌkweɪk) /

noun

a light tremor of the moon, detected on the moon's surface