Seismic tomography utilises the travel times, amplitudes and waveforms of seismic waves generated by earthquakes or artificial sources to image the three-dimensional structure of the Earth’s mantle.

Seismic tomography has revolutionised our understanding of the mantle beneath Northeast Asia by imaging variations in seismic velocity that record temperature, composition and flow patterns. The ...

(a) Tectonic setting background in the Tonga-Lau-Fiji region. (b) Schematic diagram of the upper mantle structure beneath the Tonga-Lau-Fiji region. A landmark study published in Geoscience—a leading ...

Geophysicists find link between seismic waves called PKP precursors and anomalies in Earth's mantle that are associated with hotspots associated with volcanism on the surface. For the decades since ...

Earthquakes are fracturing solid rock nearly 90 kilometers beneath stable continental interiors, a depth where standard ...

A team of seismologists has assembled the most extensive map yet of deformation deep inside Earth, revealing that the warping of rock just above the core-mantle boundary closely tracks the paths of ...

Scientists have known that seismic waves slow down when passing through ultra-low velocity zones, or ULVZs, but only knew they existed around hotspots that create volcanic island chains. Now, a new ...

(a)The phase boundary between stishovite and post-stishovite with the varying Al content. The contour represents the phase boundary of stishovite with different Al content and the H/Al ratio of ~1/3.

Nearly 50 years ago, a puzzling earthquake beneath northern Utah jolted scientists' understanding of how Earth works. Now, ...

For decades, a Tibet seismic mystery pointed to missing rock beneath the plateau. A new study finds heated crust may explain ...

Deeply hidden in Earth's mantle there are two huge "islands" the size of a continent. New research from Utrecht University shows that these regions are not only hotter than the surrounding graveyard ...