Illustration of a seismic S-wave, one of the two types of body wave produced by an earthquake. The S-wave, (secondary wave) is a shear transverse wave that causes ground displacement perpendicular to the direction of propagation (red arrow). S-waves travel more slowly than P-waves. These waves radiate from the earthquake's focus (or hypocentre) and travel through the entire Earth. Their behaviour has allowed the structure of the Earth to be determined. As well as body waves, earthquakes produce surface waves, which travel just under the Earth's surface. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4181 px × 4181 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |