Last week's eruption of the volcano near the Pacific island nation of Tonga was 600 times more powerful than the nuke dropped on Hiroshima, Japan, in World War II. As a result, the eruption was so loud that many Tongans went deaf after the first explosion. 

"The first explosion…our ears were ringing and we couldn't even hear each other, so all we do is pointing to our families to get up, get ready to run," Marian Kupu, a journalist on Tonga, told Reuters.

The eruption was so loud that it could be heard across the world, even thousands of miles away in Alaska.