The massive volcanic blast which rocked Tonga last week sent out shockwaves close to the speed of sound and tsunami waves across the Pacific Ocean. And now one expert says it could also provide ...

NEW YORK — When an undersea volcano erupted in Tonga in January, its watery blast was huge and unusual — and scientists are still trying to understand its impacts. The volcano, known as Hunga ...

On December 20, Hunga Tonga-Hunga Ha'apai—an underwater volcano in the South Pacific topped with a diminutive and uninhabited island—awoke from a seven-year slumber. The volcano spluttered and ...