Extra layer of tectonic plates discovered within Earth’s mantle?

The Guardian reports that scientists say they have found a possible layer of tectonic plates within the Earth’s mantle which could explain a mysterious series of earthquakes in the Pacific. Jonny Wu of the University of Houston presented preliminary evidence of possible plate tectonics within the mantle to a joint conference of the Japan Geoscience Union and the American Geophysical Union in Tokyo.

READ MORE: https://www.theguardian.com/science/2017/may/24/extra-layer-of-tectonic-plates-discovered-within-earths-mantle-scientists-say