Seismological research is directly related to the incubation, occurrence, and evolution of earthquakes. Scientists seek to ...

Click here to enlarge image Rock density affects seismic-wave velocity; therefore, both the S and P-waves have higher velocities in denser rock. Denser rock indicates higher rock compaction ...

Researchers have mathematically elucidated how the presence of crystals and gas bubbles in magma affects the propagation of seismic P-waves. A novel equation was derived to describe the travel of ...

Earlier first arrivals, for example in the Seattle fault zone, indicate that the rocks beneath the source and/or receiver have a higher P wave velocity, allowing the signal to travel more quickly.

Mysterious zones in the deep mantle where earthquake waves slow to ... knew that ultra-low velocity zones (ULVZs), hover near hotspots — regions of the mantle where hot rock moves upward ...

A research team led by Tomoro Sashida and Tomoharu Oka of Keio University in Tokyo, Japan, has succeeded in precisely measuring the expansion velocity of a shock wave of the supernova remnant W44.

Pulse wave velocity measurements that were taken in 2007 were independently and directly linked to the systolic and diastolic BP measurements from 2011 in both groups (P for both < .001).

The Nature of Waves Properties of waves are introduced as we explore the wave velocity equation by finding the frequency and wavelength of different types of waves. Simple harmonic motion is ...