Cave Geology in Depth - Great Basin National Park (U.S. National Park Service) In Depth Geology of Lehman Caves. Any mention of faults usually results in questions about earthquakes. It does not seem that the faults in the cave have been active for a long time. If there were movement along one of them, it would probably cause some shifting in the cave. Earthquakes generated by movement along faults further away don’t seem to cause damage in the cave, even when they shake the surface. Earthquakes generate three different types of waves, which travel in different ways. The undulating motion waves travel along the surface and can cause a lot of damage. Sound waves generated by earthquakes can travel at deeper depths. It is sometimes possible to hear an earthquake while in a cave. The sheer number of formations in Lehman Caves (and the size of the formations in the Gothic and Grand Palaces) is evidence that not much shifting has happened in most of the cave for a long time. The one exception is the Talus Room.
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