Buried more than 3,000 miles beneath our feet, Earth’s solid inner core was once thought to be unchanging—locked in place at ...

It’s not much of a stretch to say that Earth’s inner structure, especially the innermost spherical core, has stupefied ...

Full Waveform Inversion (FWI) is capable of finely characterizing the velocity structure, anisotropy, viscoelasticity, and attenuation properties of subsurface media, which provides critical ...

Are subterranean lifeforms viable on Mars? A new interpretation of Martian seismic data by scientists Ikuo Katayama of Hiroshima University and Yuya Akamatsu of Research Institute for Marine ...

The mantle of the Earth, up to 1,800 miles (2,900 kms) thick and 84% of the Earth's volume, was assumed to be a simple ...

Seismic readings of the interior of Mars strongly suggest large quantities of water buried 6 to 12 miles underground.

Seismologists have long known that seismic waves -- generated by earthquakes -- do not travel through all parts of Earth's interior at the same speed. This principle has allowed them to visualise ...

Scientists have long known that there are LLVPs — one below the Pacific Ocean and the other below Africa. In these regions, seismic waves from earthquakes travel 1% to 3% more slowly than they ...

Researchers explore the likelihood that Earth's climate, as affected by solar heat, plays a role in seismic activity. Using mathematical and computational methods, they analyzed earthquake data ...

For example, S-waves ... the Martian interior. However, Katayama and Akamatsu have interpreted these cracks as potential evidence for water within the Martian subsurface. The seismic data indicate ...