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Researchers piece together what caused volcanic eruption in Tonga

NASA scientists say the massive volcano eruption near Tonga was equivalent to 10 megatons of TNT. They believe the explosion was triggered by seawater flooding into a chamber filled with magma.

NPR’s Geoff Brumfiel reports.

This article was originally published on WBUR.org.

Copyright 2022 NPR. To see more, visit https://www.npr.org.