Rare sonar mapping—conducted before and after an undersea volcano erupted off the coast of Tonga in 2022—has uncovered the unique reasons for its deadly tsunami.

The tsunami threat around the Pacific from a huge undersea volcanic eruption began to recede Sunday, while the extent of damage to Tonga remained unclear.

The blast sent an eruption column more than 34 miles high.

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.

For every action, there is an equal and opposite reaction. On January 15th, 2022, an underwater volcano being blown into the air was the action. The reaction was the atmosphere and ocean pushing back ...

The Bureau of Meteorology has issued a renewed tsunami warning for parts of Australia after an undersea volcano near Tonga ...

Hunga Tonga-Hunga Ha'apai (Hunga Tonga for short) erupted on January 15 2022 in the Pacific Kingdom of Tonga. It created a tsunami which triggered warnings across the entire Pacific basin, and sent ...

Krakatau, a volcanic island in Indonesia, killed more than 30,000 people when it erupted in 1883. One might assume that volcanic debris posed the major threat, yet many of the victims died from a ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo Credit: iStock Size alone may be a poor guide to tsunami danger from an underwater volcano. A new study on Tonga's 2022 ...

Every single house on Mango Island was swept away by the tsunami that radiated out when the submarine volcano Hunga-Tonga Hunga-Ha’apai exploded off the coast of Tonga in 2022. Only two buildings ...