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Seismic waves vibrated on an island near Africa and hit Canada. Their reason is mystery



If seismic waves appear near the island with Africa and fall into Canada, does anyone feel them?

Apparently not – judging by the phenomenon materialized at the beginning of this month.

Coverage of earthquakes on Globalnews.ca:


An unusual seismological phenomenon originated near the island of Mayotte, near the coast of Madagascar on November 11.

They were discovered at an early stage by the Twitter community @matarikipax, which published data from the US Geological Survey, showing that they were found at a monitoring station in Kilim Mbogo, Kenya.

The same user tweeted that the waves were also detected in Zambia, Ethiopia, Spain and New Zealand.

John cassidyA seismologist of the Canadian Natural Resources earthquake (NRCan), later joined the battle, stating that the waves were detected right across Canada, to Victoria, Hyde Guayi, Toronto, Ottawa and Halifax.

It is clear that the waves were seen all over the planet.

But no one seemed to feel them, even where they originated, and that gave them an aura of secrets, Cassidy told Global News.

No one can explain exactly why they happened.

READ MORE: Magnitude 6.8 earthquake strikes a Greek tourist island

Usually a tectonic earthquake generates primary waves (P-waves) and secondary waves (s-waves), but this also did not create.

The earth moved up and down every 17 seconds as the waves flowed – “shaking very slowly,” Cassidy said.

An earthquake may have happened, but if this happened, the event, of course, was not “typical,” he added.

“Based on seismic event data and GPS formation data, there is probably a volcanic connection — the movement of magma chambers, etc.,” said Cassidy.

Seismic waves originated in the area where this year’s “earthquake” occurred.

According to the French explorer BRGM, the Mayotte, formed as a result of volcanic activity, saw "several hundred seismic events" recorded in the area since May.

The first happened on May 10th. Then, after five days, the neighboring island of Comoros experienced a 5.8 magnitude earthquake, which was the largest in history.

Smoke rises from the erupting lava in the crater of the 7,746-foot (2,361-meter) Mount Kartal on Monday, May 29, 2006, on the Big Komr, the largest of the three islands of the Comoros. Mount Kartara last erupted in April 2005.

AP Photo / Julie Morin

Further seismic events occurred in the area, but since July they have declined.

“This indicates that the released seismic energy has weakened since the beginning of the crisis, although some earthquakes are still felt by the population,” said BRGM.

The researchers believe that the cause of the swarm is a combination of tectonic and volcanic effects, although this has not yet been confirmed.

In 2007, the region of the B.K. Inner Region experienced an earthquake, after having never recorded earthquakes in the past.

The swarm was attributed to magma injected into the lower crust beneath the Anachim volcanic belt, a phenomenon that produces "high-frequency, volcanic-tectonic earthquakes and spasmodic bursts."

LEARN MORE: 3 earthquakes measuring 6.5 to 6.8 hit the island of Vancouver

If volcanic activity is confirmed near Mayotte, it will be the first to hit this area more than 4,000 years ago.

And that matters to Western Canada, Cassidy noted, there are also several volcanoes that have been inactive for thousands of years, and they can be activated again in the future.

“Understanding these signals from Mayotte will help us better understand volcanic hazards here in Canada,” he said.

© 2018 Global News, a division of Corus Entertainment Inc.


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