What is the seismogram?
seismograph is a machine used by scientists to measure movement on the ground. Reading from this machine is called seismogram. It can reveal valuable information such as location or severity of earthquake.
The results on the seismogram are displayed lines. If there is no activity, the deduction reveals a long, line. When movement is detected, a long row of rows that go up and down will be seen. These lines represent movement on Earth, also known as seismic waves. Two types of waves that are studied on the seismogram are waves of P and S.
p waves, also known as push waves, are the result of forward movement. Toric waves, often called waves, represent a spiral movement of particles twisting between internal structures. P waves are usually the first to be recorded on the seismogram because they travel fastest. Waves usually have more heights or amplitude than P -waves. Wave amplitude can help reveal information about magnitude earthquake.
seismogram can reveal how far seismic waves have occurredof the seismograph. This is often displayed when it has waves, but there are no wool. This generally means that the movement has occurred far. More accurate indications of the distance may be available when the time between the P and S is calculated. In many cases, several seismograms that come from different locations are compared for this purpose.
The seismogram often reveals how close the earthquake occurs on the surface. This is obvious by recording the surface waves that are slower than the waves S and P. These can be identified because there are usually more space between them than among other wave types. They are also often the largest signs on the seismogram.
Some signs on the seismogram may not be related to the earthquake. Some branded can be microseisms. It is a movement that the seismograph registers, but which is caused by other factors such as explosions or ocean waves.
seismograms have changed over time.These readings were once recorded using a pen or pencil and paper or light beam and photo -sensitive paper. Modern seismograms are most often produced digitally. The results are often transmitted over long distances from the point where they are recorded to another point where they analyze them.