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 ...

Analysis has shown a boulder weighing almost 1,200 tons in Tonga is one of the largest known wave-transported rocks in the world, providing new insights into the Pacific region's history and risk of ...

New Zealand and Australia were able to send military surveillance flights to Tonga on Monday to assess the damage a huge undersea volcanic eruption left in the Pacific island nation. A towering ash ...

SAN FRANCISCO -- Tsunami advisories have been lifted for California after an undersea volcanic eruption Saturday near the Pacific nation of Tonga. That eruption Saturday sent a plume of ash, gas, and ...

WELLINGTON, New Zealand — New Zealand and Australia have sent military surveillance flights to assess the damage in Tonga caused by Saturday's huge undersea volcanic eruption. Communications with the ...

Peruvian President Pedro Castillo declared an environmental emergency after an oil spill from high waves caused by the Tonga volcanic eruption contaminated several beaches. Photo: Martin ...

When massive volcanic eruptions occur, they inject millions of tons of sulfur dioxide into the stratosphere, where it forms sulfate aerosols that scatter incoming solar radiation and result in global ...