seismograph, instrument that makes a record of seismic waves caused by an earthquake, explosion, or other Earth-shaking phenomenon. Seismographs are equipped with …

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 …

The simplest method of locating an earthquake on a globe is to find the time interval between the P- and S-wave arrivals at several seismograph stations. The distance to the earthquake from …

A seismograph is an instrument that measures and documents vital information about earthquakes. Seismographs are equipped with electromagnetic sensors that translate ground …

A seismometer is the internal part of the seismograph, which may be a pendulum or a mass mounted on a spring; however, it is often used synonymously with "seismograph". …

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. A simple …

2025年1月22日 · A seismograph is an instrument that measures and records the motion of the ground caused by earthquakes, volcanic eruptions, and other seismic events. It consists of a …

2024年12月9日 · A seismograph is an instrument used to detect, measure and record ground movements caused by seismic phenomena. Such seismic phenomena include earthquakes, …

A seismograph records oscillation of the ground caused by seismic waves that travel from their point of origin through Earth or along its surface.

In general, then, the seismograph is an instrument in which the relative motion of pendulum and ground is recorded. It is equally possible to take the ratio between the deflection of the …