earthquake+technology

= = =Seismograph= A seismograph is the device that scientists use to measure how big an earthquakes can get and they also detecs tremors. The goal of a seismograph is to accurately record the motion of the ground during a quake. Now seismographs can be shown electronic and manually.

Richter Scale
The Richter scale is a scale which represents the energy released by earthquakes. The scale gives a number to show the amount of seismic energy released by an earthquake. The lower the number is, the less destructive the earthquake was.The higher the number is the more catastrofic the earthquake is. The Richter scale was invented in 1935 by Charles Richter. Seismic waves are the vibrations from earthquakes that travel through the Earth; they are recorded with seismographs. Seismographs record a zig-zag trace that shows the changing amplitude of ground swinging 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.



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