A birp from the Earth

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Underwater Volcano, Pacific Ocean, 2022

When this happens, can you name two results?

  • Take a guess.
  • Think about it. 
  • The rest of the story appears below, on this page, in 1-minute.

The video is of an underwater volcano that erupted in the Pacific Ocean on a Saturday in 2022.

You would be correct if you said that it would cause:

  1. the raining of ash on the nearby neighbors, and
  2. tsunami advisories for others thousands of miles away. 

This underwater volucano sent ash from the sky onto a nearby nation of Tonga. The tidal wave warnings went to Japan, Hawaii, New Zealand and California.

Geologic details

This eruption was huge. It was equivalent to a magnitude 5.8 earthquake, according to the US Geological Survey. It released a plume of ash thousands of feet in the air, and generated a sonic boom that could be heard nearly 6,000 miles away in Alaska.

  • Tsunamis, which are caused by the sudden displacement of a large amount of water, are primarily caused by earthquakes, not undersea volcanoes.
Due to the ash, Tonga looks “like a moonscape,” locals told the BBC. While no deaths have been reported there, the damage to Tonga is “significant,” New Zealand PM Jacinda Ardern said. The event knocked-out communication and internet lines and made it difficult to reach some of Tonga's 105,000 residents.

More:

The eruption's effect on New Zealand and the West Coast of the US was limited.

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