Updated By: LatestGKGS Desk
Earthquake Measurements using Seismometers Instrument, Scale, Unit, Methods
Earthquake measurement methods, units, instrument Seismometers graph, and report Mercalli Scale, Ritcher Scale
The ground motion generated by earthquakes, volcanic eruption, or over the ground explosions or nuclear explosions can be measured by Seismometers instrument.
All sorts of seismic waves subject to get recorded and reported by Seismometers. Previously Seismometers were known as Seismograph.
A seismogram is a recorded output of the graphical output from Seismometers.
There are two main types of scales used in the seismometers:
1. Mercalli Scale and,
2. Richter Scale.
Earthquake Mercalli Scale:
The Mercalli scale represents the intensity of the earthquake by analyzing the after-effects. These after-effects include the number of people felt the earthquake, how much destruction occurred etc.
The range of intensity of the Mercalli scale is from 1 to 12.
Earthquake Richter Scale:
The Ritcher scale represents the magnitude of the earthquake. The magnitude of the earthquake is expressed in absolute numbers from 1-10. Ritcher scale of 1 to 10 further score ten parts of decimal value for the sensitivity of the earthquake.
