Top 10 volcanoes facts Selected as the most interesting among volcanoes related questions in Volcanoes quiz In which major European city there is a volcano that may soon erupt?In Naples. Lying mostly underwater, Campi Flegrei comprises 24 craters. It is one of the largest volcanoes in the world, capable of producing VEI 7 (super-colossal) eruptions. Its most recent eruption of 1538 created a new hill, Monte Nuovo.Created by: Hitter smashergeography of Italy facts » Which island is known as "Lighthouse of the Mediterranean"?Stromboli. Mt Stromboli has been in almost one continuous eruption for the past 2000 years, which is the longest known in the world. The volcano explodes at intervals ranging from minutes to hours. This is known as Strombolian eruption type, also observed at other volcanoes worldwide.Created by: globalquiz.orgMediterranean facts » What is the typical source of pressure buildup inside a volcano?Degassing of magma. The whole process begins when hot magma is lifted by convection to the magma chamber. As the pressure in the chamber is lower than deep in Earth's crust, the gas starts to release. Since degassed magma has lower density, it may then sink and be replaced with new one. This process may build up huge pressure of gases, eventually causing explosion.Created by: Sumit Tamangnatural disasters facts » Which continent has the least active volcanoes?Australia. There are no active volcanoes on the Australian mainland that have erupted since European settlement, however some volcanoes in Victoria and South Australia are likely to have been active and witnessed by Aboriginal people several thousand years ago.Created by: globalquiz.orggeography of Australia facts » Olympus Mons is the largest known volcano. Where is it?On Mars. Olympus Mons (Latin for Mount Olympus) is a large shield volcano on the planet Mars, having a height of nearly 22 km (14 mi). Being a shield volcano, it has a very low profile. The average slope on the volcano's flanks is only 5°. Because of that, an observer standing on the Martian surface would be unable to view the entire profile of the volcano, even from a great distance.Created by: Trương Ngọc HùngMars facts » This double peaked volcano is the highest mountain of a certain country. Which one?Russia. Two characteristic peaks of Mt Elbrus have two volcano craters. The eastern peak has an enormous crater 250m in diameter. Created by: MarcusXgeography of Russia facts » Where was this photo of Etna eruption taken from?International Space Station. Mount Etna is a stratovolcano currently standing 3,329 m (10,922 ft) high. The ash plume rises another few kilometers high, so the photo couldn't have been taken from a plane at such steep angle. It was taken from the ISS, orbiting over 330 km above Earth's surface.Created by: Kasiaphotos facts » How many active volcanoes are there in Italy? (That have erupted during the last 100 years)3. These are Vesuvius, Etna and Stromboli. There are several other volcanoes considered dormant, of which 7 erupted in historic times (Vulcano 1890, Isola Ferdinandea 1831, Campi Flegrei 1528, Ischia 1302, Larderello 1282, Lipari 729, Vulsini 104BC)Created by: globalquiz.orgItaly facts » Which volcano is known as being one of the most active, but at the same one of the least violent in the world?Kīlauea, Hawaii. Kīlauea is one of the most active volcanoes on the planet and an invaluable resource for volcanologists who are able to study it up close due to its exclusively non-violent effusive activity. Kīlauea lacks a distinct peak and lies close to Mauna Loa.Created by: globalquiz.orgHawaii facts » This is Hella, a volcano in Iceland. How was it called by Europeans in the Middle Ages?Gateway to Hell. After the eruption of 1104 stories, probably spread deliberately through Europe by Cistercian monks, told that Hekla was the gateway to Hell. The belief that Hekla was the gate to Hell persisted until the 1800s. Apparently, Jules Verne was inspired by the story. In his "Journey to the Center of the Earth", a path downwards is found inside other Icelandic volcano, Snæfellsjökull.Created by: globalquiz.orgIceland facts » Play volcanoes quiz and see all the questions.