👉 A seismograph is a device used to measure and record the movement of Earth's plates. It consists of a series of devices, including a microphone, an oscilloscope, and an amplifier, which are connected in parallel to detect the seismic waves that travel through the Earth's crust. The seismograph measures the amplitude (or intensity) of these waves and records them on a recording device, which is then analyzed by computer software to determine the type of earthquake. Seismic waves can be
