Volcanoes are geological structures through which magma rises from within the Earth. <br /><br />These usually originate in the limits of the tectonic plates as a consequence of their movement, although there are also so-called hot spots, which are volcanoes located in places where there are no movements between plates.<br /><br />Discover more in this podcast.

Volcanoes are mountains with a break in the earth's crust through which they expel magma, ash and gases from the interior of the earth.When they erupt, the lava expelled by the craters accumulates on the surface and, as it cools, forms the cone of the volcano...Find out more in this podcast.