It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
News A Mysterious Seismic ‘Blip’ From Deep Inside Earth Pulsates Every 26 Seconds Every 26 seconds for the last 60 years seismologists have detected a ubiquitous pulse emanating from deep inside the Earth. Published 2 days ago on Nov 2, 2020 By Jake Anderson Every 26 seconds for the last 60 years seismologists have detected a ubiquitous pulse emanating from deep inside the Earth. The debate over the cause of this mysterious “microseism” has gone on for decades and produced several cogent hypotheses, but scientists still don’t know decisively what’s behind the phenomenon.
In 1980, Gary Holcomb, a geologist with the U.S. Geological Survey, looked more closely at the weird microseism, and figured out that it’s strongest during storms. But his and Oliver’s work would mostly be lost to time, while the constant seismic drumbeat would go on, unnoticed, beneath our feet. Then one day in 2005, then-graduate student Greg Bensen was working with seismic data at his lab at the University of Colorado, Boulder. His advisor walked in and asked him to show him what he was working on. As Ritzwoller tells it, Bensen pulled up some data, and there it was: A strong signal, coming from somewhere far off. “As soon as we saw this, [then-postdoctoral researcher Nikolai Shapiro] and I recognized that there was something weird, but we had no idea what it was,” Ritzwoller says. Perplexed, the team examined the blips from every possible angle. Was something wrong with their instruments? Or their analyses? Or was this seismic activity really happening? All signs pointed to the latter. They were even able to triangulate the pulse to its origin: A single source in the Gulf of Guinea, off the western coast of Africa. They dug up Oliver’s and Holcomb’s work, too, and published a study in 2006 in Geophysical Research Letters. But even since then, no one has really confirmed the cause of the regular seismic activity. Though many assume it’s caused by waves, some hold out that it’s caused by volcanic activity.
originally posted by: new_here
a reply to: SecretKnowledge
Mother Earth's heartbeat!
originally posted by: abe froman
Interesting that the Gulf of Guinea lies at 0° latitude by 0° longitude.
Also known as Null Island.