Volcano

Volcanic Activity

How do Volcanoes occur

Magma builds up in the magma chamber, it forces its way up to the surface and erupts, causing the volcano to erupt.

How often do volcanoes occur?

  There are typicly between 50 and 60 volcanoes that erupt each year somewhere on Earth. So that equals to about 1 per week

What are common occurences/signs of volcanoes?

Floods, mudslides, power outages, contamination of drinking water, and wildfires are frequent signs of volcanic eruption.

What tools are used to detect volcanoes?

Precise measurements of deformations in the ground often alerts scientists that the rise of magma has changed, and changes in volcanic gas emissions.

What damage do volcanoes cause for ecosystems?

Stresses in the stratosphere comes from the conversion of sulfur dioxide to sulfuric acid, which condenses rapidly in the stratosphere to form fine sulfate aerosols. Which is harmful to the native animals.

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​ ​

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and ​

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are common features that occur with volcanoes.

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Wildfires

Flooding

Hurricanes

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How does volcanoes eruptions occur?

• Magma build up

• Earth plates shift

• Shaking of the earth

Multiple Choice

How are volcanoes detected?

• landslide

• earthquakes

• deformations in the ground

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Often volcanoes erupt ​

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or ​

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once a week

50-60 times a year

Once a day