Mysterious Underwater Anomaly Resurfaces off Antarctica

A weather-mapping system has captured a large wave anomaly between Antarctica and southern Africa for the second time in a month, sparking online speculation from internet sleuths.

A wave anomaly in the same area was first captured by Ventusky, a meteorological app run by the Czech company InMeteo, on April 10.

At the time, internet sleuths speculated that the unusual sea activity could have various explanations, including the involvement of aliens.

However, Ventusky's spokesperson David Prantl told Newsweek that the mysterious blob was due to a "model error."

Ventusky uses real-time data collated from sources including the National Oceanic and Atmospheric Administration.

Another large wave anomaly appeared on the map from 8 am ET on April 25 and reached over 80 feet at its highest point. Over the next 24 hours, the shape appeared to spread and diffuse as it moved north.

Ventusky map showing wave anomaly
A large wave anomaly was spotted between Antarctica and southern Africa for the second time in a month, sparking online speculation. Ventusky

The latest wave anomaly appeared to have a crescent-like shape, compared with the one spotted earlier this month which had a solid, round shape.

Ventusky spokesperson David Prantl told Newsweek in an emailed statement that the second anomaly was due to "the same problem as before."

The company said a second model shows that "there is no anomaly and everything is fine in this area."

Prantl said that the error came from Germany's National Meteorological Service, which provides them with data, and that the problem was being addressed.

Newsweek reached out to the German agency via email for further information.

Despite Ventusky's explanations, the anomaly had already sparked widespread speculation from internet sleuths who did not accept the explanation that it was a simple data error.

In a YouTube video by the account In2ThinAir, the creator said he did not believe it could be an error, and speculated: "This is absolutely some sort of energy pulse, a frequency-type weapon."

One TikTok video, which was reposted on X, drew attention to the middle point of the crescent, noting that waves were moving in different directions from it.

"Almost like something was dropped or something imploded underneath," the TikTok creator said.

An X account shared a video of the anomaly and wrote: "Antarctica anomaly is back for the third time. It's just a glitch, right?"

Ventusky tried to ward off the conspiracy theorists in a post on X.

"A significant number of people still do not believe that the giant waves off Africa were just an error and prefer UFO theories," the company wrote.

"What can we do as a visualization platform? Add more sources!" the company said.

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