what is the difference between seismograph and richter scale?

6 comments

1. 

   Crazy Адриенн on December 18, 2009 at 9:01 pm

   Richer Scales – Measure how strong earthquakes are and measure the magantude.

   Seismographs- They measure how stong an earthquake is by the waves it recieves like the P waves, S waves or L waves.
   Note – Seismographs and Seismometers are the same thing.

   So the Richter Scale isn’t a station like Seismographs.

2. 

   The Blade on December 18, 2009 at 9:01 pm

   A seismograph is from a seismometer which records motions of the ground, including those of seismic waves generated by earthquakes, nuclear explosions, and other seismic sources. Records of seismic waves allow seismologists to map the interior of the Earth, and locate and measure the size of these different sources.
   The Richter Scale however, measures the magnitude of the earthquake and it shows the amount of seismic energy released by an earthquake.

3. 

   postie272000 on December 18, 2009 at 9:01 pm

   A siesmograph is the instrument that measures the strength of an earthquake, the richter scale is the scale of measurement for the earthquake a similee for temperature would be thermometer and celcius.

4. 

   Turbidite on December 18, 2009 at 9:01 pm

   It is the same as thermometer vs. temperature.
   It is the same as an speedometer vs. velocity.

5. 

   A.Ganapathy India on December 18, 2009 at 9:01 pm

   Seismograph is an instrument that records the shaking of earth minimum in three directions. East west,north south and up and down motions.The seismograph picture also records the arrival time of different waves. The arrival time of S wave minus P wave in seconds multiplied by 8 gives the distance of focus in k/m. The distance of focus and the maximum amplitude recorded in the seismographs are used to calculate the Richter scale.The Richter scale gives you the energy released at the point of focus. The increase in energy level for each Richter scale is 31.7 times more than previous one. The Richter scale is not directly connected with destruction. Richter scale is not a measuring instrument it is a measuring method only. Refer the chart for energy release for each Richter scale.
   Approximate TNT (Tri nitro telecom ) Yield for Seismic Energy
   Richter scale
   1 30 lbs
   2. 1 ton
   3.29 ton
   4.1000 ton
   5.32000 ton
   6.1 million ton
   7.32 million ton
   8.1 billion ton
   9.32 billion ton
   101 trillion ton.

6. 

   M.A.Ajay on April 22, 2012 at 6:11 am

   Seismic waves are the vibrations from earthquakes that travel through the Earth; they are recorded on instruments called seismographs. Seismographs record a zig-zag trace that shows the varying amplitude of ground oscillations beneath the instrument. Sensitive seismographs, which greatly magnify these ground motions, can detect strong earthquakes from sources anywhere in the world. The time, locations, and magnitude of an earthquake can be determined from the data recorded by seismograph stations.

   The Richter magnitude scale was developed in 1935 by Charles F. Richter of the California Institute of Technology as a mathematical device to compare the size of earthquakes. The magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs.