That would be a secondary, or 'S' wave. Moving in a snakelike movement, this wave has to travel a farther distance, so it takes longer to reach the recording equipment.
a siesmic wave is a wave that travels through the earth. there are two MAIN types, P and S waves. a siesmograph shows the type of wave and how far away it is from that point.
L waves are formed when P&S waves reach the surface.
These are known as the seismic waves or the s waves. They will reach the earthquake location second after the first shock.
The time it takes for wave A to reach a station depends on the distance between the source of the wave and the station, as well as the speed of the wave. Generally, this can range from a fraction of a second to several minutes for seismic waves, for example.
A flute wave is a type of sound wave, specifically a longitudinal wave. When a flutist plays a note, it creates a series of compressions and rarefactions in the air, resulting in a sound wave that travels through the air to reach our ears.
The Secondary or S-wave.
The next type of seismic wave to arrive after the P-wave is the S-wave.
A surface wave is the last seismic wave to arrive after an earthquake.
Tsunamis are generally considered the most dangerous type of wave due to their large size and destructive power, which can cause widespread devastation when they reach land.
"1 Hz" means that 1 complete wave passes the place where you're sitting each second. So regardless of what kind of wave it is or what its speed may be, if its frequency is 1 Hz, then it takes 1 second to travel 1 wavelength.
Surface waves are formed when waves reach the Earth's surface. These are seismic waves that travel along the Earth's surface and can cause the most damage during an earthquake.
The standard unit for ANY type of frequency is the Hertz - cycles per second. Its dimensions are (1 / second).