Another mystery is why the tsunami wasn’t bigger and more destructive in Tonga, which sits almost on top of the volcano. “That’s the million dollar question,” Cronin said. “Looking at ...

The Nasa Earth Observatory said earlier that the Hunga Tonga-Hunga Ha’apai volcano spewed debris as high as 40km into the atmosphere during the eruption that triggered huge tsunami waves.

Tsunami experts theorize that shock waves produced after a massive underwater volcanic eruption near Tonga on Jan. 15 caused the higher tidal levels seen along Japan's Pacific coastline.

UN Secretary-General Antonio Guterres has expressed deep concern over the reports of a tsunami, affecting Tonga following the eruption of an undersea volcano near the Pacific nation. In a statement, ...

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 ...

Two New Zealand navy vessels will arrive in Tonga on Friday carrying critical water supplies for the Pacific island nation reeling from a volcanic eruption and tsunami and largely cut off from the ...