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Chicago Sun-Times
Chicago Sun-Times
National
Sun-Times Wire

RARE PHOTOS: Shock waves detected in chicago after volcano eruption in tonga | Rare Historical Photos

This satellite image taken by Himawari-8, a Japanese weather satellite operated by Japan Meteorological Agency and released by National Institute of Information and Communications Technology shows an undersea volcano eruption at the Pacific nation of Tonga Saturday, Jan. 15, 2022. | AP

A volcanic eruption Saturday in the South Pacific island nation of Tonga was so powerful that its shock wave caused changes in air pressure detected thousands of miles away in Chicago.

A spike in air pressure readings was first detected at O’Hare Airport between 8:20 and 8:30 a.m. Saturday as the shock wave moved east from the volcano, according to the National Weather Service.

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