When a volcano erupts there can be lava, ash, steam or gaseous emissions. Sometimes eruptions are explosive and lava is thrown out as volcanic bombs. Hotspots are places where the magma rises up ...

Volcanoes can look like small mountains or hills. A volcano is an opening in the Earth’s crust that allows ... There are two main types of volcano: composite volcanoes are the most common ...

When the Kīlauea Volcano erupted in May 2018, an enormous amount of ash was released into the atmosphere in a plume nearly ...

Axial Seamount, one of the most active underwater volcanoes in the world ... Below this, a conduit carries magma from deeper in the Earth’s crust, with melt fractions of 4-11%.