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Do sound waves from volcanic eruptions travel around the world? I recently read about the Krakatoa eruption and how sound waves from that eruption traveled around the globe 4 times and were detected by weather stations through pressure spikes in barometers (http://nautil.us/blog/the-sound-so-loud-that-it-circled-the-earth-four-times). What I'm curious about is whether this has ever been documented in other volcanic eruptions?

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