Fumaroles form when hot magma, which is melted rock, heats up groundwater or rocks around it. π§
When the water turns into steam, it builds up pressure! This pressure creates cracks and openings in the
Earth's crust. When the pressure is high enough, steam and gases escape through these openings, creating fumaroles! π
This process can take a long time, and some fumaroles can be active for many years, while others may only be active for a short time. Each fumarole is unique and tells a story about the Earth's heat and geology!