GEOLOGY

Detailed explanation-1: -A seismometer is an instrument that records the shaking of the Earth’s surface caused by seismic waves . The term seismograph usually refers to the combined seismometer and recording device.

Detailed explanation-2: -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 seismometer that is sensitive to up-down motions of the earth can be understood by visualizing a weight hanging on a spring.

Detailed explanation-3: -Scientists use a machine called a seismograph to measure the motion of the ground during an earthquake.

Detailed explanation-4: -A seismograph is the primary earthquake measuring instrument. The seismograph produces a digital graphic recording of the ground motion caused by the seismic waves. The digital recording is called a seismogram. A network of worldwide seismographs detects and measures the strength and duration of the earthquake’s waves.

Detailed explanation-5: -A seismometer is an instrument that responds to ground noises and shaking such as caused by quakes, volcanic eruptions, and explosions. They are usually combined with a timing device and a recording device to form a seismograph.