View Historical Volcanic Activity in a Region
Using "Volcano" entities, it is possible to explore data about eruptions of a particular volcano.
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Using FilteredEntityClass, you can find all known volcanoes with eruptions in the last five years.
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Find the countries each volcano is in.
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Using that data, you can find all the volcanoes in a particular country or countries.
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Then you can compute the number of volcanoes in each country.
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Repeat those same steps to show volcanoes from a list of countries that have erupted within a recent period of time.
show complete Wolfram Language input
Show volcanoes in the "Ring of Fire" that have erupted in the last 25 years.
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