A remarkable video of a mud volcano bubbling beneath Mount Etna on Saturday.<br /><br />According to the filmer, this mud volcano in Paterno, Sicily is closely related to the volcanic activity of nearby Mount Etna. <br /><br />According to the filmer, when the mud volcano starts to bubble, it means Etna will erupt in a few months.<br /><br />Mud volcanoes are not true igneous volcanoes as they produce no lava.<br /><br />The mud produced by mud volcanoes is formed as hot water, which has been heated deep below the earth's surface, begins to mix and blend with underground mineral deposits.
