Question

What are the warning signs of a volcanic eruption?

Answer 1

Answer:

1. An increase in the frequency and intensity of felt earthquakes.
2. Noticeable steaming or fumarolic activity and new or enlarged areas of hot ground.
3. Subtle swelling of the ground surface.
4. Small changes in heat flow.
5. Changes in the composition or relative abundances of fumarolic gases.

Explanation:

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Answer 2

Answer:

How can we tell when a volcano will erupt?

• An increase in the frequency and intensity of felt earthquakes.
• Noticeable steaming or fumarolic activity and new or enlarged areas of hot ground.
• Subtle swelling of the ground surface.
• Small changes in heat flow.
• Changes in the composition or relative abundances of fumarolic gases.

Explanation:

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