To analyse more on the similarity of the trends, a correlation analysis was done to verify the goodness, we have used standard Pearson coefficient to do the correlation analysis and it is shown in the Figure 5.7 and the figure has plots of correlation and correlation with a rolling mean of 20 samples. From the figure it can be seen that the correlation shows the signature of detection and also the the correlation is high during the occurence of event spike. During the noise the correlation is observed to be least significant, however the correlation for all the spikes in the time domain was seen to be more than 0.75. This signifies that 75% of the time, the smartphones detection was found to be similar to that of the Seismometer.