Seismic Wave - an overview | ScienceDirect Topics
Seismic wave is one common infrasonic wave containing substantial energy and propagating in the earth’s crust. The acoustic wave that is audible is the sonic wave. In nature, the sounds of wind flows and raindrops are common sonic energy sources.
Seismic Wave - an overview | ScienceDirect Topics
Seismic wave scattering arises when there is a contrast in material properties over spatial scales that is substantially shorter than a seismic wavelength. With changes this abrupt, the material behaves as if it is a new, but weaker seismic energy source, radiating waves omnidirectionally.
Seismic Wave - an overview | ScienceDirect Topics
25.4.1 Wave propagation. Seismic wave propagation is a ground motion phenomenon that relates to the passage of body waves, including compression waves and shear waves, radially from the source of earthquake energy release (hypocenter) into the surrounding rock and soil medium. Compression waves cause compressive and tensile strains in the ...
Seismic Wave Propagation - an overview | ScienceDirect Topics
Seismic wave propagation is a ground motion phenomenon that relates to the passage of body waves, including compression waves and shear waves, radially from the source of earthquake energy release (hypocenter) into the surrounding rock and soil medium.
Seismic Wave, Seismometer & Richter Scale - Study.com
2023年11月21日 · Body waves are a type of seismic wave that travels through the Earth's interior. P-waves and S-waves are both types of body waves. P-waves are the fastest of all seismic waves and move ...
Seismic Wave Propagation - an overview | ScienceDirect Topics
Seismic wave propagation is generally slowed by elevated temperature, volatile content, the presence of melt, and mafic (primarily garnet) content of the mantle (e.g., Anderson, 1989). Seismology is therefore the primary geophysical tool for probing the mantle signature of hot spots and melting anomalies.
Seismic Sea Wave - an overview | ScienceDirect Topics
A tsunami is an oceanic gravity wave generated by submarine or coastal geological processes such as earthquakes, landslides, or volcanic eruptions. Most tsunamis are caused by large shallow earthquakes along subduction zones. Tsunami is a Japanese word meaning ‘harbor wave’, and is sometimes called seismic sea wave or, erroneously, tidal ...
Seismic wave propagation through an in-situ stressed rock mass
2015年10月1日 · For a seismic wave with a small frequency (e.g. f 0 ≤ 30.9 Hz), the wave transmission coefficient remains constant with the increasing in-situ stress. In that case, most parts of the seismic wave can be transmitted and the rock mass behaves as an intact rock, so the effect of in-situ stress can be neglected.
Seismic Waves - an overview | ScienceDirect Topics
Two types of seismic waves are transferred inside or on the planet's surface: the faster wave which comes to the earth surface first is the primary wave (P-wave), which oscillates back and forth along the direction of movement (see Fig. 1 A) and the other wave is the secondary wave which oscillates up and down, perpendicular to the direction of ...
Modeling obliquely incident seismic wave propagation in rocks via …
2024年12月1日 · The windowed harmonic seismic wave is selected as an imputing wave, and the duration time is 15 s, the maximum velocity and acceleration value are 0.5 m/s and 6.28 m/s 2, respectively, and the predominant frequency is 2.0 Hz. The time-history curve and frequency spectrum diagram of the input windowed harmonic seismic wave is shown in Fig. 22 ...