Question

Which kind of seismic wave is fastest-moving?

Answer 1

P-waves or Primary waves are the fastest moving seismic waves. They are the first to be detected by seismographs and can move through solids, liquids, and gases. However, while they are the fastest, they are not the most destructive.

Step-by-step explanation:

The seismic wave that moves the fastest is the P-wave or Primary wave. These waves are the first to be detected by seismographs in the event of a geological disturbance like an earthquake. P-waves are compressional waves that move in the same direction as the propagation of the wave, this allows them to move at a faster speed than other wave types in various mediums, including solids, liquids, and gases.

The speed at which P-waves travel can vary depending on the medium through which they pass. In general, their speed in the earth's crust is approximately 6 kilometers per second. However, this speed can be higher in other media.

It's important to note that while P-waves are the fastest, they aren't the most destructive. S-waves and surface waves, which arrive after the P-waves, usually cause more damage due to their higher amplitude and lower frequency.

Learn more about Seismic Waves

Answer 2

P-waves or primary waves are the first of two waves that are created at the epicentre of an earthquake. They travel relatively faster than their destructive counterparts - S waves and are used to signal earthquake warnings