A 2022 satellite photo shows smoke rising from a caldera on Tofua, highlighting the "looming threat" of the volcanic island.

Charlotte Lytton and Matthew Abbott traveled to Tonga to report this story. All photographs were made in May 2023. Sept. 1 at 6:00 a.m. Warning: This graphic requires ...

Moments before one of the largest underwater volcanic eruptions smothered the Pacific island of Tonga, a strange signal happened. Hunga Tonga-Hunga Ha’apai erupted in January 2022, creating an ...

For two years, scientists were perplexed by what could have triggered the 2022 Hunga Tonga–Hunga Ha'apai volcano eruption, which came to be considered one of the largest volcanic events in ...

On the 14th of January, 2022, the Hunga Tonga-Hunga Ha’apai volcano began a gigantic eruption that would go on to peak in ferocity the next day. The uninhabited island volcano would quickly make ...

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Shock waves triggered by a massive underwater volcanic eruption near Tonga on Jan. 15 were apparently responsible for tidal surges seen along Japan’s Pacific coastline, according to experts.