Tectonic Forces
The surface of a planet can be an unstable place. The solid crust sits on a molten mantle and the mantle has bubbling with convection currents. These forces deform the crust, creating surface features. Here on Earth, these forces thrust entire continents together forming enormous mountain ranges. Although other terrestrial planets don't seem to have plate tectonics, the show many features created by tectonic forces
On this image of Venus, the bright white linear features are most likely faults created by tectonic forces. While most of the faults are horizontal, some are nearly vertical. This suggests more complicated stresses than are typically found on Earth. In North America, for example, mountain ranges only run from north to south. We don't have mountain ranges intersecting at right angles.
When earthquakes strike, pieces of the crust that were adjacent can be pushed apart. This is most often seen when quakes strike Earth with news stories highlighting pictures of a distorted fence line or broken country road. Similarly, you can find geological features on other worlds that have been broken apart by quakes.