There are two instruments, which are basically the same thing. There is the seismograph , and a more specific tool measures the waves on what is called the Richter scale. Earthquakes are given a number from one to ten, ten being the strongest. The strongest earthquake that their ever was, was measured a 9.3.
the moment magnitude scale rates an earthquake by estimating the total energy released during an earthquake
The Richter Scale measures the magnitude of an earthquake which is another way of describing the energy released in the earthquake.
Richter scales are used to measure the magnitude of an earthquake. There is no specific unit used for earthquakes. I hope this helps. =)
The Richter Scale
The 2011 earthquake was a 5.8 magnitude on the Richter scale.
Ritcher Scale
Richter or Mercailles.
the moment magnitude scale rates an earthquake by estimating the total energy released during an earthquake
Earthquake magnitude is measured using a number of differing scales including the Richter scale, the moment magnitude scale and the surface magnitude scale. Intensity is measured using he Modified Mercalli intensity scale.
It is a device called a seismographe. It is used to determine the magnitude on a scale which is then deciding how bad the earthquake is.
The magnitude of the 2010 Haiti earthquake on the Richter scale was 7.0
The Richter Scale
The magnitude of an earthquake is caluated to measure the amount of energy released during the earthquake.
The strength of an earthquake is measured by its magnitude, which indicates the amount of energy released at the earthquake's source. Earthquake magnitude is typically reported on the Richter scale or the moment magnitude scale.
The Haiti earthquake was measued at a magnitude of seven on the ricter scale.
The Moment magnitude scale (which replaced the Richter scale) and the Modified Mercalli scale are used to determine the strength of an earthquake.The Moment magnitude scale is used by seismologists to rate the energy released by earthquakes.The Modified Mercalli scale is used to measure the intensity of an earthquake, and the amount of damage it causes. This value is derived from reports by witnesses of the earthquake, the damage caused to buildings and other infrastructure and the measured ground accelerations from seismometers.Please see the related questions for more information.One is the Richter scale, which measures waves and gives us a measure of the magnitude of the earthquake. The other is the Mercalli scale, which is based on the amount of damage done.
The magnitude of the 2011 earthquake in Christchurch, New Zealand, was 6.3 on the Richter scale.