Analysis for the correlation between the various parameters of earthquakes-2

 I have found many cases of strong correlation between 2 parameters. But, the parameter combination wasn't fixed. To make clear the rules which combination has strong correlation, I have checked all combination's correlation under the specific condition.

At first, I picked up the earthquakes with conditions as below,

1. Select the epicenter Area with under M6.5/20km => Picked up rectangle area of Chugoku region from Japan Meteorological Agency as below,
   
   
   
2. Check all the correlation between 2 parameters of Date(Y)/Time(T)/Lng(E)/Lat(N)/Depth(D)/Magnitude(M) per 3 earthquakes.
3. Compare the correlations. 

This is table of the 163 correlation sets between 2 parameters of 3 earthquakes within 11 earthquakes.

* These values are 10000 times of correlation for convenience of input in this table. (Ex. R^2=1.0000 => 10000)

Because of too many data, the summary table is as below,

** The columns are sorted in order of "Number of more than 0.99". 

In spite of the same data size, There is great variability of values of "number of more than 0.99" (4-39set). The biggest 3 combinations are below, 

1. Correlation between E (East longitude) and N (North latitude) 39set
   
2. Correlation between Y (Date of occurrence) and M (Magnitude) 22set
3. Correlation between T (Time of occurrence) and M (Magnitude) 19set 
4. These combination seems to be not random at least. For the correlation between E and N, the tendency can see in the first figure except 2 epicenters of Awagi-island (Great Hanshin Awaji Earthquake)/Oki-island(M6.6 in 1940).