The first studies of the 28 March 2025 magnitude 7.8 Myanmar earthquake suggest that the southern portion of its rupture ...

Decoding mysterious seismic signals Geophysicists find link between seismic waves called PKP precursors and anomalies in Earth's mantle Date: August 17, 2024 Source: University of Utah Summary ...

Dr. Schutte said that the current approach for using seismic waves to monitor wars had limitations, because it required “a large-scale array that happens to sit in a war zone.

Specifically, PKP waves are P-waves that have traveled through the Earth's mantle and core, and arrive at the surface at a variety of speeds depending on how far they traveled through these layers.

This is in part because if you were to plunge down 2,700 kilometers (1,700 miles), you would be jump-scared by seismic waves that accelerate when they hit the threshold of the D” layer.

As their names suggest, ULVZs slow down seismic waves, and scientists have known about these strange areas that tend to hang around hotspots, which are regions where mantle wells up through the ...

From these, the researchers identified 168 pairs of seismic waves that passed through or near the same area of the inner core – but years apart. Identifying these matches was only possible due ...

More information: Motohiko Murakami et al, The texture of the post-perovskite phase controls the characteristics of the D" seismic discontinuity, Communications Earth & Environment (2025).

Relationship between the simplified shear flow patterns, post-perovskite phase transition boundary, textures of post-perovskite phase, and their associated seismic signatures at CMB. Credit ...