moonquake
/ˈmunˌkweɪk/
noun
- A shaking or vibration on the surface of the moon, similar to an earthquake on Earth.
- Scientists detected a small moonquake using seismometers left by Apollo astronauts.
- Unlike earthquakes, moonquakes can last for over ten minutes because the moon's crust is dry and rigid.
- The lander's instruments recorded a shallow moonquake near the lunar south pole.