A new study shows eruptions and wildfires altered the upper atmosphere, yet recent surface warming points elsewhere.

The Hunga Volcano eruption in January 2022 off the coast of Tonga did more than produce a spectacular explosion visible from ...

Hidden in the Pacific, two very different volcanoes are forcing scientists to rethink what counts as “biggest.” Tamu Massif, ...

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 ...

Aerial images show the devastation in Tonga left behind after a violent offshore volcanic eruption sparked a tsunami and clouded the sky with ash. Communications with the island nation have largely ...

In January 2022, the most powerful explosion ever recorded with modern instruments rocked the South Pacific. Now, scientists have identified a mysterious signal that preceded the thunderous event.

Volcanoes and wildfires can inject millions of tons of gases and aerosol particles into the air, affecting temperatures on a global scale. But picking out the specific impact of individual events ...

When Hunga Tonga–Hunga Haʻapai, an underwater volcano near Tonga in the South Pacific Ocean, erupted in 2022, scientists expected that it would spew enough water vapor into the stratosphere to push ...

A new UCLA-led study shows that the 2022 eruption of underwater volcano Hunga Tonga–Hunga Haʻapai did not warm the planet as was expected but actually reduced temperatures over the Southern Hemisphere ...