The modern broad band seismograph machines are recording three graphs for east, west and for north south and the third one for up and down motions. Is it recording the amount of ground shaking or it is recording the acceleration of ground. What is required for calculation of Richter scale? The amount of shaking and distance of epicenter or the acceleration.
2006-10-23 23:41:52 · 2 answers · asked by A.Ganapathy India 7 in Science & Mathematics ➔ Earth Sciences & Geology
The seismic moment and the distance from the seismograph to the epicenter of the earthquake. If three or more seismographs are linked together then the location of an earthquake can be determined. The Richter Scale is only useful for earthquakes in California, even if it has become the standard in rating earthquake strength.
2006-10-24 05:22:34 · answer #1 · answered by Amphibolite 7 · 0⤊ 0⤋
Seismologists measure earthquakes to learn more about them and to use them for geological discovery. They measure the pattern of an earthquake with a machine called a seismograph. Using multiple seismographs around the world, they can accurately locate the epicenter of the earthquake, as well as determine its magnitude, or size, and fault slip properties.
2006-10-24 01:57:49 · answer #2 · answered by Kevin Y 2 · 0⤊ 0⤋