How do you measure a Mars quake?

When the ground shakes on Earth we call them earthquakes. Even weak ones can be detected by 'seismometers' and from listening carefully to them we can learn a lot about the makeup of the planet - that it has a solid core, molten mantle under a thin crust. But can we learn anything from listening out for quakes on Mars?
This May 2018 the InSight lander will be launched and head to Mars, landing in November 2018 in the quest to hear Mars Quakes!