Earth’s core has a 5th layer also; ANU's recent research revealed that secret

February 27, 2023 By Raulf Hernes

(Image Credit Google)

Image: phys.org Seismologists from the Australian National University (ANU) claim that information gleaned from earthquake seismic waves has revealed new information about the deepest regions of the Earth's inner core. The speeds at which these waves penetrate and flow through the Earth's core have been measured. The researchers believe they have quantified evidence of a distinct layer inside Earth known as the "innermost inner core," a solid "metallic ball" that sits within the center of the inner core. The Earth's structure was believed to have four distinct layers, before. They are the outer core, the inner core, the mantle, and the crust. There is a fifth layer, according to recent research. Also Read: Google Pixel's At A Glance features an 'Earthquake Alert' The antipode, also known as the side of the Earth opposite the earthquake's epicenter, was hit by the waves. Scientists examined the evidence that seismic waves passed through the Earth's center and directly hit the Earth’s antipode. The waves then return to the epicenter of the earthquake after traveling the distance. [caption id="attachment_99489" align="alignright" width="845"]

earth layers | Image: worldatlas[/caption] The findings, according to the ANU team, could have been the result of a "significant" change in the crystal structure or texture of the Earth's inner core at some point during Earth's evolutionary history. “We discovered a method to enhance the signals captured by densely populated seismograph networks, and we were able to observe seismic waves that could bounce up to five times along the Earth's diameter for the first time. Only one antipodal bounce has been observed in prior studies.” According to Thanh-Son Phaim of the ANU Research School of Earth Sciences. "There are still many unanswered questions about the Earth's innermost core, which could hold the secrets to piecing together the mystery of our planet's formation," said Professor Hrvoje Tkali from ANU.

By Raulf Hernes

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Earth’s core has a 5th layer also; ANU's recent research revealed that secret

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