The mysterious ripple of seismic waves traveled thousands of kilometers across the globe, detecting sensors throughout Africa, Canada, New Zealand and Hawaii, apparently not sensing a single person.
- Seismic waves starting from the coast of Mozambique triggered sensors in Kenya, Chile, New Zealand and Canada
- Tremor lasted more than 20 minutes
- The earthquake went unnoticed until it was captured by an earthquake enthusiast on the Internet.
The tremor began off the coast of Mayotte, a French archipelago in the Indian Ocean between Madagascar and Africa, and would have flown under the radar if it were not for the earthquake enthusiast in New Zealand, which was set up for real geological exploration of the United States, a temporary gather is displayed on the Internet.
They posted images of the readings on Twitter, prompting researchers around the world to try to deduce where these strange waves came from.
Unlike traditional earthquakes, which lead to shocks of various high-frequency waves, the Mayotte trematode reads consistent low-frequency waves, which lasted more than 20 minutes. As if the planet was ringing like a bell.
Theorists online offer hidden nuclear tests, sea monsters or a meteorite as the cause of the tremor, but Goran Ekstrom, a seismologist at Columbia University, told National Geographic that the explanation was likely to be direct.
"I don't think I saw something like that [but] this does not mean that, after all, their reason is that it is exotic, ”he said.
Professor Ekstrom suggests that a seismic event really starts with an earthquake. He thinks it went secretly because it was a slow earthquake.
Slow earthquakes are quieter than traditional earthquakes, because they come from a gradual release from stress that can stretch out over a considerable period of time.
“The same deformations occur, but this does not occur as a push,” said Professor Ekstrom.
Since May of this year, Mayotte has been exposed to what is known as an “earthquake”; a collection of hundreds of seismic events over several days or weeks, but in recent months, activity has decreased significantly.
Seismological readings managed to fix the "ghost" earthquake on the chart. (Anthony Lomax via Twitter)
An analysis by the French Geological Survey shows that strange waves may indicate a massive movement of magma under the crust, such as a camera collapse.
Rhythmic movement, such as splitting molten rock, or rebounding a pressure wave through a magma body, can resonate in the same way as Mayotte’s.
The Democratic Republic of the Congo was the site of a similar event in 2002, where similar slow earthquakes and low-frequency waves were associated with a magma camera crashing below Nyiragongo volcano.
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