The Richter scale (or local magnitude scale) indicate the energy released by a particular earthquake.
The numerical value is obtained from the logarithm of the maximum amplitude of seismic waves as recorded on a seismometer. This value is then scaled to account for the distance from the epicentre of the earthquake to the seismometer so as to allow the value to be correlated with the local magnitude readings from other seismometers in differing locations (as seismic waves lose their energy as they propagate through the earth so if this correction was not made, then different seismometer stations at different distances would give differing Richter magnitudes for the same earthquake).
It uses a logarithmic mathematical formula which is calibrated so that a ten fold increase in amplitude relates to a single whole number increase on the scale (e.g. an earthquake with a Richter magnitude of 5 has seismic waves with a maximum amplitude 10 times larger than those for a magnitude 4).
The equation for calculating the Richter magnitude (MR) is shown below:
MR = (Log10A) - (Log10A0)
Where
A = maximum zero to peak amplitude of seismic wave (mm) recorded.
A0 = Empirical function derived from the distance from seismometer station to earthquake epicentre
Log10A0 From 0 to 200 km distance:
Log10A0 = 0.15 - 1.6 log(distance in km)
Between 200 and 600 km distance by:
Log10A0 = 3.38 - 3.0 log(distance in km)
Richter scale is used for measuring earthquakes. It is a scale which works from 1 to 10 magnitude.
An earthquake's magnitude is expressed as a number on the Richter Scale.
The Richter scale measures the magnitude of seismic waves produced by an earthquake, which provides an estimate of the energy released at the earthquake's source. A higher Richter scale number indicates a stronger earthquake.
Charles Richter developed the Richter scale in collaboration with Beno Gutenberg. This scale is used to measure the magnitude of seismic events, such as earthquakes. It is logarithmic and allows for comparison of the energy released by different earthquakes.
Because it's Charles Richter's last name... He made the Richter Scale... The Richter Scale can only go up to a 9.9999999(continuous 9)... In Japan in March 2011 the earthquake was a 9.1... It was the 3rd largest earthquake on record
The Richter scale
My rebuilt engine is about 7.5 on the Richter scale! Yesterday's earthquake read 3.2 on the Richter scale. The Richter scale was developed in the 1930s.
Richter scale is used for measuring earthquakes. It is a scale which works from 1 to 10 magnitude.
Richter scale
4-5 on the Richter scale.
It reached 7.0 on the richter scale
The scale of Richter scale is 10. It calculates the earthquake on a scale of 10.
No. The Richter Scale rates the intensity of earthquakes. There is not intensity scale for tsunamis.
The scale used to measure the strength of an earthquake is called the Richter scale
The Richter scale is based on measurements of *Amplitude*. (^_^)
it measured 8.9 on the Richter scale
The Richter scale does not know anything. The Richter scale is a measurement of the magnitude of an earthquake. The numbers of the scale represent a quantifiable measurement or range of the strength.