Geoscientists have used earthquakes to study the composition of the lower portion of the Earth’s mantle under the Pacific Ocean – and they've discovered something quite peculiar. There are zones where the seismic waves move in different ways,

Geologists from ETH Zurich and the California Institute of Technology studying the Earth's interior using seismic waves have encountered an intriguing phenomenon beneath the Pacific Ocean. The analysis of wave movement revealed the existence of zones with different properties,

Supercomputer unveils unexpected anomalies lurking in Earth’s lower mantle ZURICH, Switzerland — Miles beneath the Pacific Ocean, in a region of Earth’s mantle where conventional wisdom says nothing unusual should exist,

Hidden deep beneath the Pacific Ocean, researchers have uncovered anomalies in the Earth’s mantle that defy existing geological theories. Using advanced seismic imaging, a team of geologists from ETH Zurich and the California Institute of Technology has identified ancient tectonic plate-like zones in regions far removed from subduction boundaries.