Mysterious Planetwide Rumble May Have Come From the Largest Underwater Eruption Ever Recorded

On November 11, 2018, a deep rumble ricocheted around the world, one that humans couldn’t feel but that registered quite clearly on seismometers. A new pre-print paper about the event is now suggesting that it was caused by the largest offshore volcanic event in recorded history.

https://gizmodo.com/mysterious-planetwide-rumble-may-have-come-from-the-lar-1833327445