Do other planets have earthquakes?

For terminology, "Earth"quakes might be replaced with "seismic activity" since earthquakes are by definition restricted to the Earth. Technically speaking the other terrestrial planets in our solar system are not active in terms of plate tectonics. read more

As per NASA there is indeed evidence of seismicity on Mars and perhaps on Venus. Several moons of Jupiter and Titan, a moon of Saturn, show signs of tectonic activity so they would likely have seismicity associated with this activity. read more

Seismic activity occurs on other planets, which says that they may have molten core like earth, but most of the other planets that have seismic activity don't have plates tectonics like earth does. Venus, and Mars like the earth have volcano. read more