Scientist use triangulation method to locate the epicentre of an earthquake from the data collected from Seismograph.
Explanation:
The seismic data from three different location is collected to locate the intersect point as the epicentre point to be determined. Each earthquake is recorded in seismogram in different location.
A seismogram is the output from a graph called seismograph, which is used to determine the epicentre of an earthquake. There are two waves namely P-waves or Primary waves and S-waves or secondary waves that are considered while finding the epicentre of an earthquake.
With the seismogram, P-waves appears first before S-waves, since they travel faster through three states of matter. Thus, data from seismograph is used for locating “epicentre of an earthquake”.
Answer:
-Record of waves from at least 3 seismograms are used to locate earthquakes.
-Difference inn arrival times of P and S waves give distance from seismometer to earthquake
Explanation:
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