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Volcanic ash consists of rock, mineral, and volcanic glass fragments smaller than 2 mm (0.1 inch) in diameter, which is slightly larger than the size of a pinhead. Credit: D.E. Wieprecht, USGS.

Volcanology is a lecture from the school of geology and the department of radiation astronomy about the science that studies volcanoes.

You are free to take this quiz based on volcanology at any time.

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1 Yes or No, The word "volcano" is used to refer to the opening from which molten rock and gas issue from Earth's interior onto the surface, and also to the cone, hill, or mountain built up around the opening by the eruptive products.


2 True or False, Volcanoes occur on every continent on Earth, under its oceans, and on many other astronomical rocky objects.


3 Which of the following is not a radiation phenomenon associated with a crater?

elongated dust particles
high albedo

4 Yes or No, Hominins have been aware of volcanic activity in this planet since ancient times.


5 Moldavite is a mineral that may be associated with what radiation astronomy phenomenon?

predicting the end of the Earth
determining the accuracy of local computers
meteorite impacts
demonstrating that Venus was once a comet
predicting when currently dormant volcanoes will erupt

6 True or False, Vulcanology is a variant spelling of volcanology.


7 Various radiation observatories occur at different altitudes and geographic locations due to what effect?

the presence of oceans on the Earth
locally available carving tools
light pollution
most astronomical objects are observed at night
currently dormant volcanoes seldom erupt
human habitation increases near an astronomical observatory

8 True or False, Three-armed patterns seem to be a common scheme in the arrangement of volcanic vents in oceanic volcanoes.


9 The Mesoamerican Long Count calendar is an astronomical document produced to help astronomers for what purpose?

predict the end of the Earth
determine the accuracy of local computers
accurately predict the equinoxes
demonstrate that Venus was once a comet
predict when currently dormant volcanoes will erupt
demonstrate that the local pyramids were built by aliens

10 Yes or No, Volcanic activity includes an explosive Plinian eruption that destroyed Pompeii and killed thousands of people in 79 AD.


11 Which geological phenomena are associated with Earth?

lava-spewing volcanoes
sulfur volcanoes
plate tectonics
water oceans
liquid methane oceans
silicate minerals

12 Yes or No, All volcanic activity has formed over the last 25,000 years.


13 Complete the text:

The topographic map of Mars includes the

volcanoes in the west (including


to the east of Tharsis, and

in the southern hemisphere.

14 Yes or No, Mount Vesuvius is a strato-volcano consisting of a volcanic cone (Gran Cono) that was built within a summit caldera (Mount Somma).


15 Complete the text:

Match up the form or type of volcano with the volcano:
Mount Somma - A
Mount Hikbok-Hikbok - B
Mount Redoubt - C
Mount Pinatubo - D
El Chichon - E
Mount Tambora - F






16 Yes or No, Deposits of large landslides are mapped around the Hawaiian volcanoes by sidescan sonar.


17 Yes or No, Eruptive products include ash clouds, fire fountains, lava flows, spatter cones, glowing avalanches, and steam eruptions.



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  1. There are approximately as many volcanoes per 10° of longitude and 5° of latitude as there are glaciers.

See also

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{{Charge ontology}}

{{Radiation astronomy resources}}