WELLINGTON, New Zealand — The tsunami threat around the Pacific from a huge undersea volcanic eruption has begun to recede, while the extent of damage to Tonga remains unclear. The eruption on ...

It's been nearly four years since a massive volcanic explosion rocked the Pacific nation of Tonga. The eruption created a ...

In 2022, the eruption of the underwater Hunga volcano near Tonga sent a plume of ash soaring 37 miles into the sky, setting a new record as the largest volcanic plume ever captured by satellites. This ...

Most volcanic activity on Earth doesn’t happen on land. It happens out of sight, beneath kilometres of water, where pressure ...