Earth tide

Earth tide, also known as solid Earth tide or terrestrial tide, refers to the periodic deformation of the Earth's crust caused primarily by the gravitational forces exerted by the Moon and the Sun. Similar to ocean tides, which cause the rise and fall of sea levels, Earth tides result in the slight movement and displacement of solid land. The gravitational pull of the Moon, which is much stronger than that of the Sun due to its proximity, causes the Earth's crust to deform.