GEOLOGY

Detailed explanation-1: -The Richter scale measures the largest wiggle (amplitude) on the recording, but other magnitude scales measure different parts of the earthquake. The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes.

Detailed explanation-2: -The Richter magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs. Adjustments are included for the variation in the distance between the various seismographs and the epicenter of the earthquakes.

Detailed explanation-3: -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-4: -1. Richter Scale is used to measure the scale of absolute ‘Magnitude’ of an earthquake based on the amount of seismic energy released. 2. Mercalli scale measures the ‘Intensity’ of an earthquake based on based on the amount of destruction caused.

Detailed explanation-5: -The most common measure of earthquake strength is the Richter scale, which measures the “moment magnitude” and describes horizontal movement. It is a logarithmic scale. A magnitude 6 earthquake has ten times more energy intensity or movement than a magnitude 5 on the Richter scale.