New Delhi, June 7 -- Scientists have decoded an unusual incident that unfolded in September 2023, when seismic stations across the world began to pick up a steady but unusual signal, repeating every 92 seconds.

This steady pulse lasted nine full days and returned for a brief period after a month. It was too faint for people to feel but strong enough to make its presence felt across Alaska to Australia - an unusual behaviour for a typical earthquake.

While scientists were baffled at first but the source was later traced to the remote Dickson Fjord in East Greenland - a narrow inlet that is bordered by 3,000-feet high cliffs.

New satellite images have now shown a fresh scar where a section of the mountain had vanished - indicating someth...