Correct Answer : Italy
Mount Etna is an active stratovolcano located on the east coast of Sicily, Italy. It is Europe's most active volcano and one of the largest globally, with a recorded history of volcanic activity dating back to 1500 B.C.
About Mount Etna :
* Mount Etna is located on the east coast of Sicily,
Italy.
* It is an active stratovolcano, characterized by its conical shape formed by layers of hardened lava, ash, and volcanic rocks.
* It is Europe’s tallest active volcano, standing at approximately
3,329 meters (10,922 feet) above
sea level.
* It is one of the most active volcanoes in the world and has been erupting for thousands of years, with the first recorded eruption dating back to around 1500 BCE.
* Mount Etna and its surrounding area have been designated as a UNESCO World Heritage Site since 2013, recognizing its geological significance and natural beauty.
* It boasts five craters responsible for eruptions, alongside numerous vents along its slopes.
What are Volcanic Vortex Rings?
* Volcanic vortex rings are a rare phenomenon observed when gas, primarily water vapor, is rapidly released through a vent in the volcano’s crater, forming circular rings of smoke above the mountain.
* This phenomenon, similar to smoke rings blown by cigarette smokers, occurs when gas is expelled through a nearly perfect circular vent in the crater.
* These rings can rise in the air for up to 10 minutes but may disintegrate quickly under windy conditions.