The seismic waves that started off the coast of Africa have risen to the world earlier this month, and no one seemed to be wiser.
The waves began on November 11, about a mile off the coast of Mayotte, a French island between Africa and the northern tip of Madagascar, according to National Geography. As waves crossed the continent, they crossed to Chile, New Zealand, Canada, and finally Hawaii.
"I do not think I saw anything like that," said Göran Ekström, a seismologist at Columbia University who is studying unusual earthquakes.
Its features were unusual, from the low frequency ring to its spread.
As the event went unnoticed, one person saw curious zigzags on real-time seismograph screening of American geological research and set up a picture on Twitter. It attracted the attention of researchers around the world, who were left wondering about the source of the waves.
Extremely suspect that waves might start with unexpected earthquakes.
Data tells what caused the incident, said Helen Robinson, PhD. a candidate for volcanology at the University of Glasgow.
"It is really hard to say what the cause is and whether the theory of theory is correct – whether and what I am saying is of any importance to the outcome of what is happening."