Mount Breakenridge is the subject of intensive study by government geologists due to the location of a fracture or shear zone on the mountainside above Harrison Lake. Researchers have identified the shear zone as a major risk for collapse into Harrison Lake, one of British Columbia's largest and deepest lakes, causing a large megatsunami. The fracture is a group of cracks caused by tension from a large and unstable piece of rock, and was most likely made more unstable by the abundant rain and seismic activity of the area. Supermarine landslides, which is what is feared in the case of Mount Breakenridge, disrupt the body of water from above when debris falls in, and then the energy from the debris travels into the water. If the unstable piece of rock fell, it would very quickly move and displace extremely large amounts of water. When a landslide generates a tsunami, it can produce waves that cause very severe damage, especially when the energy of the waves is amplified by being trapped in an inlet of the coast.