Seismograph, instrument that makes a record of seismic waves caused by earthquakes and other Earth-shaking phenomena.

Seismic waves lose much of their energy in traveling over great distances. But sensitive detectors (seismometers) can record theses waves emitted by even the smallest earthquakes. When these …

Seismograph is another Greek term from seismós and γράφω, gráphō, to draw. It is often used to mean seismometer, though it is more applicable to the older instruments in which the measuring and …

A seismograph is a device for measuring the movement of the earth, and consists of a ground-motion detection sensor, called a seismometer, coupled with a recording system.

Aug 30, 2023 · Have you ever wondered how scientists record local earthquakes without the equipment shaking? A seismograph is an instrument that can detect and record ground motions in the earth's …

What is a seismograph and how does it work? A seismograph is an instrument which uses a seismometer to detect, measure and record ground movements caused by seismic phenomena, …

Jun 20, 2025 · A seismograph is the device that scientists use to measure earthquakes. The goal of a seismograph is to record the motion of the ground during a quake accurately.

A seismometer is an extremely sensitive electromechanical device used to measure ground movement in a particular area in the order of nanometres (millionths of a millimetre). The movement recorded …

During an earthquake, vibrations caused by the breakage of rock along a fault zone radiate outward from the point of rupture. The instrument used to record and measure these vibrations is called a …

These seismogram displays depict ground motion recorded by seismograph stations in real-time, updated every few minutes. Each plot represents 24 hours of data from one station.