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What is a volcano?
Hot molten rock or magma is erupted.
Where are the most active Volcanos?
Kilauea volcano, Etna in Italy and Piton de la Fournaise are the world's most active volcanos.
What are volcanic rocks?
Igneous rock of volcanic origin.
What are fumaroles?
Vents from which volcanic gas escapes into the atmosphere.
How many volcanos are there in a year?
The exact number of volcanoes is unknown.
How many volcanic eruptions occur every year?
On average, there are about 50-70 volcanoes that erupt every year.
Which is the world's largest volcano?
The largest volcano on earth is Mauna Loa on Hawai'i Big Island.
Which is the world's highest volcano?
The highest historically active volcano in the world is Llullaillaco.
Which was the world's biggest eruption?
On 10 April 1815, Tambora produced the largest eruption known on the planet.
Which is the most dangerous volcano in the world?
Vesuvius volcano in the Gulf of Naples, Italy.
How dangerous are volcanoes?
Volcanoes are usually less dangerous than other natural hazards such as earthquakes, tsunamis and hurricanes.
Which is the world's most beautiful volcano?
Kronotsky volcano in Kamchatka.
Can volcanos effect climate?
Large volcanic eruptions can cause global climate change and even be responsible for mass extinctions.
What is pumice?
Pumice is a light, porous volcanic rock that forms during explosive eruptions.
What is the Ring of Fire?
The Pacific Ring of Fire is an area of frequent earthquakes and volcanic eruptions encircling the basin of the Pacific Ocean.
Which volcano has the longest name?
Theistareykjarbunga Volcano
Can eruptions create global cooling?
Large volcanic eruptions create global cooling by injecting ash into the atmosphere which blocks out sunlight.
How are volcanoes formed?
A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth.
What are plate tectonics?
continents drifting from place to place breaking apart, colliding, and grinding against each other.
What is a pyroclastic flow?
A pyroclastic flow is a fluidized mixture of solid to semi-solid fragments and hot, expanding gases that flows down the sides of a volcano.
Can earthquakes trigger eruption?
Earthquakes are able to disturb volcanic systems.
What are the largest evacuations in volcanos?
The 2002 eruption of Nyiragongo resulted in the largest evacuations in history.
Why do volcanoes erupt?
The Earth’s crust is made up of huge slabs called plates, which fit together like a jigsaw puzzle.
What is lahar?
A lahar is a type of mudflow or debris flow composed of pyroclastic material, rocky debris, and water.
What is volcanic lightning?
Volcanic lightning, also known as dirty thunderstorms, is capable of producing some of the most powerful and visually striking lightning storms on Earth.