Tectonic stabilizers are huge robotic platforms used in terraforming operations to reduce geological activity on a planet.  A tectonic stabilization platform is typically built on top of a large drill head and burrows deep into the ground, typically at some critical location on a fault line.  Tectonic stabilizers are often deployed in networked groups to reduce geological activity in a particular region. 

Once in place, the tectonic stabilizer deploys a number of different tools to absorb and mitigate geological forces.  Most such platforms include enormous shock absorbers and thermocouples that convert geological activity into electricity.  This energy is then used to power the platform, with any excess power transferred to the surface via long power cables that extend from the top of the platform.

While in place, most tectonic stabilizers also deploy a number of other tools, such as drills, jackhammers, earth-moving equipment, etc. to shift the earth around it into more stable configurations to reduce seismic activity.  This activity is coordinated by the platform's artificial intelligence, as these platforms are deployed without any biological crew.