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Mystery seismic event leaves scientists baffled


Posted on Thursday, 29 November, 2018 | Comment icon 18 comments

Scientists have been struggling to make sense of the phenomenon. Image Credit: CC BY-SA 3.0 NikoLang
A mysterious 'earthquake' rippled around the entire world earlier this month and yet nobody felt a thing.
The event, which originated in the Indian Ocean off the island of Mayotte on November 11th, lasted 20 minutes and was picked up thousands of miles away in Chile, Hawaii, New Zealand and Canada.

"I don't think I've seen anything like it," said seismologist Goran Ekstrom from Columbia University.

Determining what was responsible has since proven something of a challenge and so far the only thing we do know for sure is that there was no corresponding earthquake.

It has been speculated that underwater volcanism or even a meteorite impact could be responsible.

"It is very difficult, really, to say what the cause is and whether anyone's theories are correct," said Helen Robinson from the University of Glasgow.



Source: National Geographic | Comments (18)

Tags: Seismic Waves

Recent comments on this story
Comment icon #9 Posted by Piney on 30 November, 2018, 19:20
Or a whole chain along a major fault. 
Comment icon #10 Posted by joc on 30 November, 2018, 22:56
I guess we know what it was about now...Earthquake in Alaska 7.x on the Richter scale and tsunami watches..
Comment icon #11 Posted by fred_mc on 1 December, 2018, 14:42
A micro black hole passing through Earth perhaps, quote from https://en.wikipedia.org/wiki/Micro_black_hole :  
Comment icon #12 Posted by qxcontinuum on 2 December, 2018, 5:36
Or maybe one of particles accelerator experiments 
Comment icon #13 Posted by NicoletteS on 2 December, 2018, 15:29
My friends car fell in a hole in the road! Her and her kids are ok now but wow you dont see that coming... the road just falling apart while your on it.
Comment icon #14 Posted by joc on 3 December, 2018, 4:19
I saw the pictures....car on road between massive cracks....phew....close one...glad they were okay Sweetheart!  
Comment icon #15 Posted by Socks Junior on 5 December, 2018, 18:41
This didn't have anything to do with the Alaska earthquake...sorry y'all.  
Comment icon #16 Posted by Raptor Witness on 12 December, 2018, 6:02
The Earth can speak, hear, see , feel, taste, smell, among other things. And if a window to another dimension opens, then closes, who knows what that sounds like? Perhaps the Earth received a transmission of some kind.
Comment icon #17 Posted by Raptor Witness on 12 December, 2018, 11:31
And, behold, there was a great earthquake: for the angel of the Lord descended from heaven ..... Since time is part of our dimension, when a door opens and closes to another, we might expect a disturbance. So imagine what happens if an army crosses into ours.              
Comment icon #18 Posted by Raptor Witness on 12 December, 2018, 13:16
‘And besides all this, between us and you a great chasm has been set in place, so that those who want to go from here to you cannot, nor can anyone cross over from there to us.' Luke 16:26  Apparently, someone thought to explain, as best they could, what separates one dimension from another.  Why bother explaining this, unless movement from one world to another, was possible, for those with the power to do so vs. those who are trapped?


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