Volcanism Explained — How Do Volcanoes Form and Why Do They Erupt? | NEXT IAS In this quick GeoConcepts lesson, we explore volcanism — the powerful natural process responsible for forming volcanoes, new landforms, and even oceanic crust. Volcanoes form when heat and pressure deep inside the Earth melt the mantle, pushing magma upward through vents, especially at tectonic plate boundaries and hotspots. Depending on lava thickness and gas content, volcanoes can become shield, composite, or cinder

Europe’s most active volcano located in Italy has been sighted puffing out giant smoke rings. 🌋 A rare phenomenon, the cloud shape requires a circular volcanic vent, a calm atmosphere and a mix of pressure, heat and wind. #9News | 9 News