Many people may wonder, "Is it true that earthquakes happen on the moon?" Earthquakes on Earth are well known, but there are also moonquakes on the moon. These moonquakes provide important clues to understand the moon's interior structure and crustal activity. By observing the shakes and vibrations on the moon's surface, we can explore the moon's interior and understand seismic activity from a different perspective than on Earth. Research organizations, including NASA, are collecting and analyzing moonquake data. This research is helping to reveal the mechanisms and processes of moonquakes, and it is expected to contribute to future predictions of moonquakes and the development of earthquake science. Studying moonquakes not only helps to solve the mysteries of the moon but may also be the key to understanding seismic activity on other celestial bodies in the solar system.