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1.The deadliest earthquake in Japanese history occurred during which century?
142,800 people were killed in the 1923 Great Kantō earthquake (magnitude 7.9 (Mw )). Some of these were killed during the resultant firestorms and fire tornado. The Japanese earthquake with the greatest magnitude was the 2011 Tōhoku earthquake, with a magnitude of 9.0-9.1.
2.The deadliest natural disaster killed roughly 4 million people. Which type of natural disaster was it?
The natural disaster in question was a series of Yangtze floods that occurred in 1931. After a long drought lasting from 1928 to 1930, there was a particularly harsh winter, which created large deposits of snow and ice in mountainous areas near the river. When the snow and ice melted in 1931, it flowed down the Yangtze until it reached the middle stretch of the river, which was experiencing heavy rains. In July of the same year, there were nine cyclones, adding to the flooding that was by then occurring. Up to 4 million people died.
3.A supervolcano exists to the west of which Italian city?
It is known as Campi Flegrei or the Phlegraean Fields.
4.A tornado, which was the widest recorded tornado and the one with the fastest maximum wind speed, occurred in which US state?
Known as the 2013 El Reno tornado, it was 2.6 miles wide and had a maximum wind speed of 302 mph.
5.What is a limnic eruption?
Eruption with thick lava
Mud erupting from a sinkhole
Gas erupting from a lake
The gas, usually carbon dioxide, of these eruptions is usually in large enough quantities to suffocate nearby wildlife, livestock and humans. As the gas erupts from underneath lakes, it can sometimes cause water to be displaced, resulting in tsunamis. Only two such eruptions have been observed and recorded, both of these in Cameroon. The worst of these, which occurred at Lake Nyos (in the northwest of the country), killed between 1,700 and 1,800 people.
6.The deadliest earthquake in history occurred in which country?
The 1556 Shaanxi earthquake killed roughly 830,000 people. A large number of people died in the area of the Loess Plateau. Millions of people lived in artificial caves in the area, and because the loess clay used to make them was soft, the earthquake collapsed many of the caves and also caused landslides.
7.The largest impact crater on Earth exists in which country?
The Vredefort crater, which can be found in the Free State province of South Africa, is 190 miles across.
8.A blizzard has never been observed in which country?
One occurred in Iran in 1972 and another occurred in Afghanistan in 2008.
9.Which of these sinkholes is not completely submerged?
Dean's Blue Hole
Located in Croatia, Red Lake is a sinkhole with a karst lake at the bottom of it. Dean's Blue Hole is a blue hole located in a bay in The Bahamas, while Dragon Hole is the world's deepest blue hole and is located west of Vietnam, in the Paracel Islands (which are claimed by Vietnam, China and Taiwan).
10.How many soldiers were killed by avalanches in the Alps during WWI (estimate)?
Many of these avalanches were caused by artillery fire.
11.Which of these is believed to be man-made?
Sidoarjo mud flow
Val Pola landslide
It is the largest mud volcano in the world. It is believed that it was caused by the blowout of a natural gas well.
12.What was the diameter of the largest hailstone ever measured?
It fell in Vivian, South Dakota.
13.Which of these hurricanes didn't reach Category 5?
At its peak intensity, it was at Category 3.
14.What destroyed dikes in the Netherlands in 1953?
It was part of the North Sea flood of 1953. Overall, 2,551 people died in the Netherlands, Belgium and the United Kingdom.
15.Which of these was a drought?
It was the largest and most devastating drought in Brazilian history.