The intensity of an earthquake is measured on the _________.
(A) richter scale
(B) kelvin scale
(C) mercury scale
(D) all of the above

Hint: The magnitude of an earthquake is determined from the logarithm of the magnitude of the waves recorded by seismographs. Adjustments are included in the size formula to compensate for the distance difference between the various seismographs and the large seismic area.

Complete answer:Richter's magnitude was developed in 1935 by Charles F. Richter of the California Institute of Technology as a mathematical tool for comparing earthquake magnitude. On the Richter scale, the magnitude is indicated by the whole number and the decimal fractions. For example, a magnitude of 5.3 can be calculated with a magnitude earthquake, and a magnitude earthquake can be measured as a magnitude of 6.3. Due to the logarithmic basis of the scale, each total value increases in magnitude represents a tenfold increase in the estimated amplitude; as a measure of power, each step of a whole number on the scale of scale corresponds to a output of power more than 31 times the value associated with the previous total number. The magnitude is the most common measure of the magnitude of an earthquake. It is an estimate of the magnitude of an earthquake source and is the same number no matter where you are or how the earthquake sounds. Energy is a measure of earthquake and the damage caused by earthquakes; this number changes from place to place.

therefore, the correct option is (A)

Note: Earthquakes are recorded by a psychographic network. Each seismic channel in the network measures the movement of the ground in that area. The slippery surface of the boulders in an earthquake releases the earth's vibration. That vibration pushes a cohesive piece of land and causes it to vibrate, and thus energy comes out of the earthquake in the wave.