WORLD HISTORY

Detailed explanation-1: -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". Seismographs are instruments used to record the motion of the ground during an earthquake.

Detailed explanation-2: -Seismometers allow us to detect and measure earthquakes by converting vibrations due to seismic waves into electrical signals, which we can then display as seismograms on a computer screen. Seismologists study earthquakes and can use this data to determine where and how big a particular earthquake is.

Detailed explanation-3: -A device called a seismograph can be used to measure the magnitude of any earthquake.

Detailed explanation-4: -Seismograms are used to determine the location and magnitude of earthquakes. An earthquake’s magnitude may be considered to vary as a function of the amount of energy released at the rupture point.

Detailed explanation-5: -The correct answer is Earth Quake. A seismograph records the waves reaching the surface during an earthquake.