Some Facts About Moonquakes

Why do moonquakes occur?

When the Moon is closest to Earth, the force of gravity is stronger, increasing stress and making earthquakes more likely to occur on the Moon.

There are three main types of moonquakes: deep moonquakes, shallow moonquakes, and thermal moonquakes.

Deep moonquakes occur about 700 kilometers below the Moon's surface and are believed to be caused by tidal stresses.

Shallow moonquakes are located at depths of around 20 to 30 kilometers and are likely caused by the gravitational influence of the Earth.

Thermal moonquakes are associated with the expansion and contraction of the Moon's crust due to temperature changes during the lunar day and night.

Moonquakes do not occur as frequently as earthquakes. They occur sporadically and are more likely to occur during periods of increased tidal stress.

Moonquakes were first detected by seismometers placed on the Moon's surface during the Apollo missions (Apollo 11, 12, 14, 15, and 16).