10 most difficult volcanoes riddles A list of volcanoes related questions that are most often answered incorrectly Geography quiz 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 28% MontserratMontserrat28%Saint LuciaSaint Lucia31%ItalyItaly20%MaltaMalta19%Created by: Tschuka . Statistics based on 1535 answers in 2 languages »disasters riddles » Visiting Antarctica, we will not be able to see:The most oxygenated lake in the world. In Antarctica we can find both the Erebus high volcano at nearly 4 km, the Don Juan pond with salinity 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 28% the saltiest lake in the worldthe saltiest lake in the world32%the most oxygenated lake in the worldthe most oxygenated lake in the world28%a stony deserta stony desert17%a volcanoa volcano21%Created by: Tschuka . Statistics based on 1478 answers in 2 languages »Antarctica 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 37% Mt Etna, ItalyMt Etna, Italy21%Kīlauea, HawaiiKīlauea, Hawaii37%Eyjafjallajökull, IcelandEyjafjallajökull, Iceland32%Mt Pinatubo, PhilippinesMt Pinatubo, Philippines7%Created by: globalquiz.org. Statistics based on 11303 answers in 4 languages »Hawaii 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 convection35%boiling of rainwaterboiling of rainwater3%degassing of magmadegassing of magma40%Created by: Sumit Tamang. Statistics based on 11834 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 44% CyprusCyprus11%SicilySicily24%StromboliStromboli44%RhodesRhodes18%Created by: globalquiz.org. Statistics based on 22903 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 44% 1118%2229%3344%NoneNone7%Created by: globalquiz.org. Statistics based on 21655 answers in 2 languages »Italy 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 48% IndonesiaIndonesia17%RussiaRussia48%ArgentinaArgentina21%AustriaAustria12%Created by: MarcusX. Statistics based on 22535 answers in 2 languages »geography of Russia 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 7523 answers in 2 languages »photos riddles » 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.average 60% EuropeEurope17%North AmericaNorth America7%AfricaAfrica14%AustraliaAustralia60%Created by: globalquiz.org. Statistics based on 25978 answers in 2 languages »geography of Australia riddles » 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.average 62% in Australiain Australia5%in Indonesiain Indonesia12%in Antarcticain Antarctica19%on Marson Mars62%Created by: Trương Ngọc Hùng. Statistics based on 21367 answers in 4 languages »Mars riddles » Play geography quiz and see all the questions.