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These are the volcanoes:

• Okmok; Alaska Volcano Observatory (AVO) page.

  Last erupted in 2008; AVO sped up the seismic signals to use as soundtrack to this satellite view.

• Vsevidof; AVO page. Last known eruption 1878, not 1999, though there was some activity.
• Recheshnoi; last eruption but has probably erupted since the last ice age ended. AVO page.

And here is the island — enjoy!

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Featured image: SevenMaps/Shutterstock

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