Tonga eruption sent ripples through Earth's ionosphere

Pasadena CA (JPL) Feb 04, 2022

The powerful underwater volcanic eruption that blanketed the island nation of Tonga with ash and sent tsunami waves across the world also caused ripples in Earth's ionosphere, according to measurements from the Global Differential Global Positioning System (GDGPS) managed by NASA's Jet Propulsion Laboratory in Southern California. When the Hunga Tonga-Hunga Ha'apai volcano erupted on Jan.