Earthquake season reviewed

Earthquake warnings to begin mid-April. In this graph 6.6 and larger earthquakes at 35km or less are plotted for the Northern Hemisphere since 2015. This cycle was identified going back in historical records, so I am keeping up with the research yearly now. Aftershocks are removed from the count and a total of 35 have occurred so far.
Alaska and Russia have a slightly different schedule so these are removed in the lower graph. From April 15 to May 18 (33 days), and October 22 to November 25th (34 days), 19 out of 29, or 2/3 of all large scale earthquakes occurred during these brief periods of time. During this period the continental plates undergo shifting due to the heat causing pressure and expansion, so smaller scale earthquakes escalate in numbers as well during these times.

In this graph I adjust our worlds earthquakes to our planets clock excluding Alaska and Russia.  This comes to 67% occurring during a 67 day period of time.