Does the Moon get Earthquakes?
Moonquakes, or “earthquakes” on the Moon, are very similar to earthquakes on Earth but are typically less intense.
During Apollo missions 12, 14, 15, and 16 (1969–1972), a network of seismometers were installed on the lunar surface. Each seismic station operated continuously from set-up until data collection stopped in late 1977s. When the data was studied, researchers where astonished to find more than twelve-thousand seismic events took place with several registering a 5.5 on the Richter scale. A magnitude 5 quake on Earth is energetic enough to move heavy furniture and crack plaster.
The researchers also discovered that there are four types of moonquakes. Deep moonquakes that occur deep below the Moon’s surface which can be a result of tidal stresses caused by the gravitational pull of the Earth, Moon and Sun. Shallow moonquakes that occur at the surface and are often due to rock landslides. Thermal moonquakes, which occur when the freezing crust expands as it returns into sunlight after the two week lunar night and meteorite moonquakes which occur from the vibration of the a meteoroid crashing into the surface.