5 fast facts about volcanoes Volcanic ash is made ... Mount Rainier in Washington is a famous stratovolcano. Shield volcanoes are big, broad volcanoes made up of oozy lava flows that erupt from ...

Mount Etna in Sicily, Italy, is an example of a composite volcano. Shield volcanoes do not have such violent eruptions. These volcanoes tend to have gentle slopes and their runnier lava spreads ...

Off the coast of Oregon, a massive undersea volcano, Axial Seamount, is gearing up for its next eruption. Situated 300 miles offshore and 4,626 feet beneath the Pacific Ocean’s surface, this ...