Atmospheric waves from a massive 2022 South Pacific volcanic eruption created seismic waves that penetrated Earth to at least 5 kilometers in Alaska, creating an opportunity to employ an unusual method of peering into the state’s deep subsurface.



Summary

The 2022 Hunga Tonga-Hunga Ha’apai volcanic eruption generated powerful atmospheric waves that vibrated the Earth, acting as a unique seismic source. Scientists in Alaska capitalized on this event to investigate the state’s subsurface. These atmospheric waves penetrated at least 5 kilometers below the surface, creating measurable seismic waves. By analyzing the response of these waves, researchers gained valuable insights into Alaska’s deep geological structures, using a natural phenomenon as an unconventional tool for subsurface exploration. This demonstrates a novel approach to studying the Earth’s hidden layers.

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