NASA Says Tonga Eruption Sent Up Highest Ash Plumes Ever Captured by Satellite

When a volcano in Tonga erupted on January 15, it gave satellites their first glimpse at a plume of volcanic ash shooting into the mesosphere, the third layer of Earth’s atmosphere.   According to NASA, the Tonga event was the largest volcanic eruption since satellites began monitoring our planet. As the Pacific volcano shot a burst of ash … Read more

Volcanoes: Plumes of rock that feed volcanic hotspots are surprisingly cold

Geologists may need to come up with a new explanation for the sources of volcanic activity in places like Iceland and Hawaii Earth 6 January 2022 By Alex Wilkins Hawaii’s Kilauea volcano erupting in 2018 U.S. Geological Survey via Getty Images The plumes of rock feeding Earth’s volcanic hotspots are much cooler than previously thought, … Read more