How far away do you have to be to hear a volcano, what is the longest length to be away from a volcano?

Emily

Dear Emily,

Sorry for the delay in responding to your question.

The 1883 explosive eruption at Krakatau was hear 2,800 miles (4,000 km) away. That's the greatest distance for any known eruption.

Steve Mattox, University of North Dakota

Source of Information:
Simkin, T., and Fiske, R.S., Krakatau 1883: The volcanic eruption and its effects: Smithsonian Institution Press: Washington, D.C., 464 p.

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