In 2022, the Tonga eruption sent a powerful sound through the ocean — the strange signal before a deadly disaster hit may change how scientists warn about tsunamis

The Hunga Tonga-Hunga Ha'apai volcano eruption generated powerful underwater sounds. These acoustic signals traveled thousands of kilometers through the ocean. Researchers discovered this sound could warn of dangerous volcanic tsunamis. Detecting these signals offers a new tool for monitoring submarine volcanoes. This discovery could significantly improve early warning systems for coastal communities.