Found only in the Shattered Caverns. Small falling rocks and rumbling signal the appearance of an Earth Tremor. Stay back until the larger, louder rocks have fallen, and then continue on to avoid being crushed.
Tips for Dealing with Falling RocksEdit
You can set your viewer to show transparency (ctrl+alt+T on Windows, command+option+T on Mac). This will allow you to see when the death prim appears and disappears, making it easier to navigate the caverns and avoid being crushed.
Make sure you keep your ears and eyes open. Small rock particles and rumbling sounds signal impending doom!
Lastly, while you have transparency visible, watch for crystals and crystal rezzers. They usually mark a spot where rocks can fall.