S waves or P waves
Humorous answer: A seismograph never answers; it just waves.
P-waves are the first seismic waves to arrive at a seismograph station.
p-waves
The first waves to arrive at a seismograph station are primary waves, or P waves.
All the waves!!
The instrument that detects seismic waves is called a seismometer or seismograph. It measures the vibrations caused by seismic waves in the Earth's crust and can help to monitor and study earthquakes.
a seismograph is a device that records ground movements caused by seismic waves
The primary waves (P-waves) are the first to reach a seismograph after an earthquake. These waves are faster than other seismic waves and can travel through both solid and liquid materials.
This statement is incorrect. A seismograph can measure both P waves (primary waves) and S waves (secondary waves), as well as other types of seismic waves such as surface waves. Each type of wave produces a distinct pattern on the seismograph, allowing seismologists to analyze and understand the characteristics of an earthquake.
The fastest seismic waves, P-waves, will arrive first at a seismograph station after an earthquake. P-waves are compressional waves that can travel through both solids and liquids, allowing them to arrive at a station before the slower S-waves and surface waves.
A seismograph.