10 most difficult volcanoes riddles A list of volcanoes related questions that are most often answered incorrectly Volcanoes quiz How many active volcanoes are there in Europe? (excluding islands)One. Vesuvius is the only volcano on the European mainland. The rest of them are located on European islands, the most in Iceland (around 20).very hard 23% oneone23%twotwo19%threethree35%fivefive20%Created by: Ninjai. Statistics based on 4745 answers in 2 languages »volcanos riddles » Which country had its capital completely destroyed by volcano eruption?Montserrat. On 18 July 1995, the previously dormant Soufrière Hills volcano, in the southern part of the island, became active. Eruptions destroyed Montserrat's Georgian era capital city of Plymouth. Between 1995 and 2000, two-thirds of the island's population was forced to flee, primarily to the United Kingdom, leaving fewer than 1,200 people on the island as of 1997 (rising to nearly 5,000 by 2016)very hard 30% MontserratMontserrat30%Saint LuciaSaint Lucia31%ItalyItaly19%MaltaMalta19%Created by: Tschuka. Statistics based on 1885 answers in 2 languages »disasters riddles » 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.very hard 38% Mt Etna, ItalyMt Etna, Italy21%Kīlauea, HawaiiKīlauea, Hawaii38%Eyjafjallajökull, IcelandEyjafjallajökull, Iceland32%Mt Pinatubo, PhilippinesMt Pinatubo, Philippines7%Created by: globalquiz.org. Statistics based on 11847 answers in 4 languages »Hawaii riddles » Visiting Antarctica, we will not be able to see:The most oxygenated lake in the world. In Antarctica we can find the Erebus high volcano at nearly 4 km, the Don Juan pond with a salinity of 44.2%, and the desert of the McMurdo Valleys. Lake Vostok with an oxygen content 5 times more than the average, however, is hidden under a 4 km layer of glacier.very hard 38% the saltiest lake in the worldthe saltiest lake in the world26%the most oxygenated lake in the worldthe most oxygenated lake in the world38%a stony deserta stony desert15%a volcanoa volcano19%Created by: Tschuka. Statistics based on 2377 answers in 2 languages »Antarctica riddles » What is the world's only active volcano that erupts natrocarbonatite lava?Ol Doinyo Lengai is an active volcano located in Tanzania. It uniquely produces natrocarbonatite lava. Due to this unusual composition, the lava is erupted at relatively low temperatures (approx. 500-600 °C). This temperature is so low that the molten lava appears black in sunlight, rather than having the red glow common to most lavas.very hard 38% MeruMeru6%MerapiMerapi20%Ol Doinyo LengaiOl Doinyo Lengai38%VesuviusVesuvius34%Created by: Ninjai. Statistics based on 281 answers in 2 languages »geography riddles » 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.hard 40% centrifugal force of Earth rotationcentrifugal force of Earth rotation20%magma convectionmagma convection36%boiling of rainwaterboiling of rainwater3%degassing of magmadegassing of magma40%Created by: Sumit Tamang. Statistics based on 12161 answers in 2 languages »natural disasters riddles » 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.hard 45% CyprusCyprus11%SicilySicily24%StromboliStromboli45%RhodesRhodes18%Created by: globalquiz.org. Statistics based on 23685 answers in 2 languages »geography of Italy riddles » 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)hard 45% 1118%2229%3345%NoneNone7%Created by: globalquiz.org. Statistics based on 22525 answers in 2 languages »Italy riddles » 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.hard 49% passenger aircraftpassenger aircraft21%hot air balloonhot air balloon23%International Space StationInternational Space Station49%the Moonthe Moon5%Created by: Kasia. Statistics based on 7715 answers in 2 languages »photos riddles » 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. hard 49% IndonesiaIndonesia17%RussiaRussia49%ArgentinaArgentina21%AustriaAustria12%Created by: MarcusX. Statistics based on 23357 answers in 3 languages »geography of Russia riddles » Play volcanoes quiz and see all the questions.