If seismic waves occur near the African islands and hit Canada, does anyone feel it?
Obviously not – judging by the phenomenon that materialized earlier this month.
Earthquake coverage at Globalnews.ca:
An unusual seismological phenomenon emerged near Mayotte Island, off the coast of Madagascar on November 11th.
They were previously discovered by Twitter users @matarikipax, who published US Geological Survey data that showed they were detected at the monitoring station in Kilima Mbogo, Kenya.
The same user tweeted that waves were also detected in Zambia, Ethiopia, Spain and New Zealand.
John Cassidy, a seismologist with Natural Resources Canada (NRCan), later joined the fight, saying the waves were discovered exactly across Canada, Victoria, Haida Gwai, Toronto, Ottawa, and Halifax.
It is clear that the waves were perceived throughout the planet.
But no one felt them, even where it originated – and it gave them the aura of the mystery, Cassidy Global News said.
No one can explain exactly why they happened.
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Usually, the tectonic earthquake generates primary waves (P-waves) and secondary waves (s-waves), but it did not even produce it.
The ground moves up and down every 17 seconds as the waves flow – "It shakes very slowly," Cassidy said.
It is possible that a earthquake occurred, but if he did, the event was certainly not "typical," he added.
"Based on seismic events and data on the formation of GPS there is probably a volcanic connection – movement of magma chambers, etc.," Cassidy said.
Seismic waves originate from the area where "devastating earthquakes" occurred earlier this year.
Mayotte, who was born of volcanic activity, saw "several hundred seismic events" recorded in the area since May, according to the French Geological Survey of the BRGM.
The first occurred on May 10th. Then, five days later, the neighboring island of Komoros experienced magnitude 5.8 magnitude, which was the largest ever recorded.
Further seismic events have occurred in this area, but have slowed down since July.
"This suggests that seismic energy has been freed from the beginning of the crisis, although some earthquakes still feel the population," BRGM said.
The cause of racial hatred is still being investigated, but researchers believe that it could be a combination of tectonic and volcanic effects – although this has not yet been confirmed.
The B.C.'s inner region experienced a catastrophic earthquake in 2007, having never recorded earthquakes in the past.
The wind is attributed to the magma by injecting it into the lower bark under the volcanic belt of Anahim, a phenomenon that creates "high frequency, volcanic-tectonic earthquake and spasm of bumps."
Read more: 3 earthquakes measuring between 6.5 and 6.8 degrees hit Vancouver Island
If volcanic activity is confirmed near Mayotte, it would be the first to hit the area in more than 4,000 years.
And it is important to Western Canada, Cassidy noted – there, too, there are a number of volcanoes that have been inactive for thousands of years and could be re-activated in the future.
"Understanding these Mayotte signals will help us better understand volcanic hazards here in Canada," he said.
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