On Sunday November 11, around 9.30 am, a series of strange seismic waves rolled around the world. The ripples, that originated 15 miles off the shores of a tiny island Mayotte in the Indian Ocean, lasted for 20 minutes.
Mayotte is located between Madagascar and Africa. After originating in the island, the seismic pulses rolled across Africa, in Zambia, Kenya, and Ethiopia. It then crossed the Atlantic and were recorded in Chile, New Zealand, Canada, and even Hawaii nearly 11,000 miles away, reported the National Geographic.
Strangely, no human being felt or noticed it. But machines did.