The closest point on Earth to the Moon occurs at the zenith of the location directly beneath the Moon, known as the sublunar point. This point changes as the Moon orbits the Earth, meaning that the closest point varies over time. In general, the specific location can be anywhere on Earth where the Moon is directly overhead at a given moment.
At its closest, the distance to the Moon is about 363,300 kilometers (225,623 miles), which occurs during the perigee phase of the Moon’s elliptical orbit. However, it’s important to note that this distance changes continuously due to the Moon’s movement and the Earth’s rotation.