The Richter scale developed by Charles F. Richter in 1935 is used to rate the magnitude of an earthquake. It tells us roughly (probably very roughly) the amount of energy that has been released by the earthquake.
The Ritcher Scale is used to measure earthquake strength.
They might be in the middle of the ocean, causing no destruction. Or they could be very low on the Ritcher Scale.
he invented the Ritcher magnitude scale
Ritcher Scale
one to ten
The Richter scale is a logarithmic scale, and is open-ended. The largest earthquakes record just above 9 on this scale. Of course, there are even larger events. Such as the bolide that struck the Mexican peninsula about 65 million years ago.
8.9
The two main earthquake classifications are the Ritcher and mercalli scales. The Ritcher scale measures the actual amount of energy released by the quake in a scale of 1-10. Every number in the scale is 10x stronger than the number before it. This is the kind of measurement that would be reported in the news first. Most earthquakes are recorded using this scale. The Mercalli scale rates earthquakes by the signs noticeable during the quake and the damage caused. Having plaster falling off walls, for example, would give a rating of 6 (strong). Note that this scale doesn't indicate the actual intensity of the earthquake.
The main scales for measuring earthquakes are the Richter scale, the moment magnitude scale, and the Mercalli intensity scale. The Richter scale measures the amplitude of seismic waves, the moment magnitude scale considers the total energy released by an earthquake, and the Mercalli intensity scale measures the intensity of shaking and its effects on people and structures.
It was 7.2 according to my freinds :S
The Rossi-Forel scale measures the intensity of earthquakes based on observed effects on people, buildings, and the environment, ranging from I (not felt) to X (widespread destruction). The Richter scale measures the magnitude of earthquakes based on the energy released by the quake, using a logarithmic scale with each whole number increase representing a tenfold increase in amplitude of seismic waves.
The lowest number on the Ritcher scale is a 1.0. A 1.0 is generally not felt at all. The highest number is a 10 on the Ritcher scale.