Does Mars have earthquakes

Answer 1

No, it is not solid rock, it is gas, therefore it has no earthquakes

Answer 2

1) A Titanquake, or the quake of any structure, needs only mass to propagate movement. If an asteroid slams into another body, air or no, the ground quakes. If the gravitational forces of another huge body, like Saturn or Jupiter, effect a nearby satellite, stress can be built up and released independent of all else - plates, air, whatever. A wide array of solar system bodies demonstrate active geologies - Io's volcanism, for one. Titan, orbiting Saturn as it does, a massive gas giant, has evidence of cryovolcanoes. In all likelihood it does experience quakes - unfortunately I'm not knowledgeable on whether Titan has active plates and tectonics, although off the top of my head, I'd think it extremely possible.

Do note that during the Apollo missions to our own moon, seismometers were installed on the lunar surface. These instruments ran for several years until being shut off in 1977 - during the course of their observations we discovered a great many moonquakes. The moonquakes were actually quite diverse as well, with the discovery of no fewer than four different types of causes/forms. There were shallow quakes, deeper ones, those caused by meteoric impacts and others. The Moon, our moon, is most certainly the epitome of one's notion of an airless world... even if it does in actuality have a very sparse, extremely diffuse atmosphere of assorted particles from a variety of sources. Nothing could be further from the truth than asserting that an atmosphere - air - is a requirement for any sort of geological quakes, or the energy transfer on and motion of any solid or liquid body(s).

Furthermore, such would not be called an Earthquake. Only Earth can experience an earthquake. The Moon, moonquakes. Mars, marsquakes. Even the sun? You guessed it! Sunquakes.

2) Titan is not 'space.' Titan is not a vacuum. This is an insanity particularly here, because Titan has an atmosphere far denser than the Earth. It is unique in this regard among moons of the solar system, spectacularly so - until Cassini we had been unable to peer below the atmosphere, so thick is it. When Huygens landed, the ESA had no idea whether it would splash down in a global methane ocean or crash into ice rock solids. We were clueless as to whether Titan was an oceanic world, a frozen ice rock, some mix in-between or otherwise. Look at Titan on a space ship, and all you would see would be an orange haze - its atmopshere of methane, ethane and etcetera. To say Titan's surface exists in a vacuum, that it is airless, is the height of absurdity. Nowhere in the solar system is this less true, beyond the Sun and selected planetary bodies (Venus, Earth, gas giants of Jupiter, Saturn, etc.)

So bottom line - geological activity, whether tectonics, plates, volcanoes or otherwise, most certainly do not require 'air' nor an atmosphere. Just a solid/liquid body to transfer energy and motion. And Titan is absolutely, irrefutably not an airless, vacuum world - it is unique among all moons for its incredibly dense atmosphere, and a standout even amongst the planets for a haze so dense as to be utterly impenetrable to outside eyes. The original answer has about the same accuracy and validity as saying the Sun is a black hole or that the Earth is a galaxy. Wrong, wrong, wrong.

Answer 3

Yes it does, but it is hard to really tell from the satellites in space.

Answer 4

No because it is a gaseous planet