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EXPLAINER: Why Tonga eruption was so big and what's next

People around the world looked on in awe at the spectacular satellite images of an undersea volcano erupting in a giant mushroom cloud in the Pacific. Many wondered why the blast was so big, how the resulting tsunami traveled ...

Volcano erupts in Pacific, West Coast under tsunami advisory

An undersea volcano erupted in spectacular fashion Saturday near the Pacific nation of Tonga, sending tsunami waves crashing across the shore and people rushing to higher ground. Tsunami advisories were issued for Hawaii, ...

Scientists coolly recall fiery volcano visit

Far above the populated towns on La Palma in Spain's Canary Islands, off the coast of western Africa, Esteban Gazel and Kyle Dayton carried equipment from their car and hiked toward the erupting Cumbre Vieja volcano's active ...

Australian icebreaker maps deepsea mountain

The summit of an underwater mountain, higher than Mount Kosciuszko, has been mapped for the first time by the Australian icebreaker Research and Supply Vessel (RSV) Nuyina.

Tongans warned of acid rain after volcanic eruption

A toxic cloud spewing from an erupting volcano in Tonga could dump acid rainfall across the Pacific kingdom, potentially poisoning drinking water and damaging people's skin and eyes, emergency services have warned.

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