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Mysterious ‘Acoustic Waves’ From ‘Unknown Source’ Causes Tremors In Denmark, Baffling Scientists



Scientists are baffled after discovering that a series of tremors on the Danish Baltic island of Bornholm Saturday were caused by ”acoustic pressure waves from an unknown source” in the atmosphere.

According to The Associated Press, residents on the Danish Baltic island of Bornholm were rattled by a series of tremors on Saturday that rumbled and even changed pressure in the ears of some people.

At first, seismologists thought that a nearby earthquake must have been the source of the shaking. When that was ruled out, they considered controlled explosions, about 90 miles away in Poland, as a possible source, but later said this theory was “unlikely.”

Then they discovered that “acoustic pressure waves” were the cause of the tremors — but the source of these waves? “Unknown.”

Bornholm, home to nearly 40,000 people, is a rocky island in the Baltic Sea, south of Sweden, north-east of Germany and north of Poland.

From AP News:

“On Monday, the Geological Survey of Denmark and Greenland, an official body that monitors the underground, said the tremors were “not caused by earthquakes, but by pressure waves from an event in the atmosphere.” However, they came from “an unknown source.”

“The seismologists can report that it is unlikely that the tremors originate from a controlled explosion in Poland, which was carried out shortly before the first reports of tremors on Bornholm,” the body known as GEUS said in a statement.”

On Saturday, GEUS said it had received “more than 60” tips from people on Bornholm that “earthquake-like tremors” – described as a deep rumbling, shaking and rattling, changing pressure in the ear — had been reported in the afternoon on Bornholm. …

Fortunately, with a magnitude that reached only 2.3, nobody was hurt on the island of about 40,000 people.


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