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When Good Lakes Go Bad Trivia Quiz

Crater lakes are an extremely rare phenomenon. This is a quiz about them, which is aptly named, as many crater lakes have caused a lot of death and heartache over the years.

A multiple-choice quiz by Flynn_17. Estimated time: 7 mins.

Author
Flynn_17

Time
7 mins

Type
Multiple Choice

Quiz #
192,571

Updated
Dec 03 21

# Qns
10

Difficulty
Very Difficult

Avg Score
4 / 10

Plays
2090

One at a Time - Single Page - Timed Game

Question 1 of 10

1. First of all, we're going to try and define a 'crater lake'. Which of these descriptions most accurately describes a crater lake? Hint

The caldera of a volcano filled with rainwater caught by a thin veil of solid magma atop the main vent.

A cap of meteoric water covering the main vent of a volcano, found in only 12% of all Holocene-aged volcanoes.

A lake found in the crater of an extinct or dormant volcano, similar to a cwm or corrie.

Water formed by the volcano heating and cooling, caught by the vegetation either side of the caldera and collected.

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Question 2 of 10

2. One of the biggest disasters regarding a crater lake was the incident at Lake Nyos, in Cameroon (Cameroun). In 1986, there was a massive release of gas which killed around 2,000 in the nearby settlement of Nyos. What gas was released to cause such a massive death toll? Hint

Chlorine

Carbon Dioxide

Carbon Monoxide

Ozone

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Question 3 of 10

3. One of the most photographed crater lake series in the world is 'Tiwo Nua Muri Koohi Fah', which is located atop the Keli Mutu volcano, in Flores, Indonesia. But what does the name of this series of crater lakes actually mean? Hint

The lake of pure air and foul

The lake of the living and the dead

The lake of young men and maidens

The lake of good and evil

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Question 4 of 10

4. Lake Taal is situated in the caldera of the Taal volcano in the Philippines. It almost fills the 18-mile diameter of the caldera, but there is something more unusual about Lake Taal. What is it? Hint

Lake Taal contains a small island, which itself has a crater lake.

Lake Taal is the highest crater lake (in altitude) in the world.

Lake Taal erupts every few years, so the lake has to refill.

Lake Taal has people living around its banks.

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Question 5 of 10

5. 'Laguna Calientes', as it is known by the locals, is one of only two crater lakes in Costa Rica, and they both sit atop the same volcano. What is the name of this volcano? Hint

Ramados

Cotohiki

Poas

Coatlique

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Question 6 of 10

6. Ruapehu, or 'weeping waters', was the site of a major disaster, when a lahar from the volcano swept a train off its tracks, killing around 170 people. What country is Ruapehu in? Hint

Japan

Indonesia

New Zealand

Iceland

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Question 7 of 10

7. Crater lakes have certain features, which mean they can be classified. Which of the following descriptions is not a legitimate classification for a crater lake? Hint

Bicarbonate

Hot-acid hyperbrine

Neutral-saline

Acid-sulphate

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Question 8 of 10

8. A lake, which goes by the name of 'Crater Lake', and is located atop Mount Mazama, is one of the few crater lakes in the USA, and due to its neutral-dilute status, is one of the world's largest fresh water sources. But where is this crater lake? Hint

Washington

South Carolina

Oregon

Montana

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Question 9 of 10

9. Most of the world's crater lakes are found in Indonesia, which makes sense, as Indonesia also has more volcanoes than any other country in the world. Which of these crater lakes (or crater lake series) is not found in Indonesia? Hint

Yugama Lake

Keli Mutu series

Kawah Putih

Batur Lake

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Question 10 of 10

10. There are many, many volcanoes in the Caribbean that are named 'Soufriere'. Only one of the 'Soufriere' volcanoes has a crater lake, though. Which one? Hint

Soufriere, Guadeloupe

Soufriere, St. Kitts

Soufriere, Montserrat

Soufriere, St. Vincent

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Quiz Answer Key and Fun Facts

1. First of all, we're going to try and define a 'crater lake'. Which of these descriptions most accurately describes a crater lake?

Answer: A cap of meteoric water covering the main vent of a volcano, found in only 12% of all Holocene-aged volcanoes.

Rain water, which falls in the area above the main vent of the volcano, is evaporated by the heat, and then quickly condenses, forming a lake which covers the main vent of the volcano. As it covers the main vent, volcanic lakes often have sulphur floating on their surface.

Answer: Carbon Dioxide

The carbon dioxide gas, which was heavier than the air, rolled slowly down the hill towards the village and suffocated the majority of its population. Shortly after this eruption, the lake turned bright orange in colour for a couple of months.

Answer: The lake of young men and maidens

This is a very interesting area, as there are three crater lakes all in a very small area, two of which are connected. All have a different colour and pH.

Answer: Lake Taal contains a small island, which itself has a crater lake.

Lake Taal does, in fact, have a large island in the middle of it, which is called 'Volcano Island'. It does have a small crater lake in it, but nothing compared to the size of Lake Taal. The Taal volcano last erupted in 1965, causing large explosion craters to form around its base.

5. 'Laguna Calientes', as it is known by the locals, is one of only two crater lakes in Costa Rica, and they both sit atop the same volcano. What is the name of this volcano?

Answer: Poas

Poas has erupted 39 time since 1828, and is an almost constant source of mild volcanic activity. The lakes are incredible acidic, with a pH that is less that one.

6. Ruapehu, or 'weeping waters', was the site of a major disaster, when a lahar from the volcano swept a train off its tracks, killing around 170 people. What country is Ruapehu in?

Answer: New Zealand

Ruapehu erupts frequently, with the last major eruption occurring in 1999. It also erupted many times in 1997, in the month of October.

7. Crater lakes have certain features, which mean they can be classified. Which of the following descriptions is not a legitimate classification for a crater lake?

Answer: Neutral-saline

The six classifications of crater lake are as follows: Hot-acid hyperbrine, acid-brine, acid-saline, bicarbonate, acid-sulphate, and neutral-dilute. The most dangerous are the hot-acid hyperbrine lakes, where the geothermal and volcanic activity is so great that no stable state can ever be achieved by the lake. Neutral-dilute lakes have no volcanic or geothermal input, and are therefore safe.

Answer: Oregon

It is found in 'Crater Lake' National Park, which was the site for the 1996 conference on crater lakes and degassing.

Answer: Yugama Lake

Yugama Lake is located in Japan, upon the Kusatsu-Shirane volcano. The hot acid-brine lake has been monitored by the Japanese for many years to try to prevent a disaster such as that at Lake Nyos from happening.

10. There are many, many volcanoes in the Caribbean that are named 'Soufriere'. Only one of the 'Soufriere' volcanoes has a crater lake, though. Which one?

Answer: Soufriere, St. Vincent

The most serious eruption of Soufriere, St. Vincent, was in 1902. This particular eruption killed 1,600 people, and although the volcano has erupted since, there have been few fatalities.

Source: Author Flynn_17

This quiz was reviewed by FunTrivia editor crisw before going online.
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