Frost quakes can occur when water saturated ground undergoes rapid deep freezing. The energy release causes noise and shaking.
January 22, 2023 was the height of a wave of social media posts about what people claimed were “electric rocks” found in the DR of Congo. A video showed a close up of someone touching two rocks together and producing a strong electric spark. The clip was widely shared and accumulated millions of views. But it was not as it appeared.
The infamous Sessho-seki, a protected boulder in the volcanic area of Mount Nesu in Japan, has split. The break occurred around March 5, 2022. A legend says the stone was the prison of the evil nine-tailed fox demoness Tamamo-no-Mae and that anyone who touched it died. Some people fear that evil has been released into the world. In reality, the stone had been cracked for a while and held by a rope. The rock likely split from natural weathering processes. The area is known for sulfur hot springs and potentially poisonous gases which may have contributed to the “killing stone” myth.
Some residents of Silver Spring Township in southcentral PA began to experience booming noises days after heavy rain deluged the area in September 2021. Township officials consulted geological experts who concluded that the sounds originated underground but were not related to earthquakes. Instead, the karst system was actively moving the water and debris in the subsurface.