Rapport entre Ozone et Séismes - Relation between Ozone and Earthquakes
Link to Earthquakes Map: http://quakes.globalincidentmap.com/
Ozone Map Source, Courtesy of Environment Canada Ozone and UV Monitoring, Link of this daily updated map: http://es-ee.tor.ec.gc.ca/ozone/image...
In the East, it seems to follow the green line, in Europe, it's the yellow one for Poland and Germany, elsewhere it's when blue comes to grey, ... You should look at variations in the average measured level of Ozone.
I can't explain it like a scientist, seriously, but that's what I see, and think. I may be wrong, I've never read about it too.
=) Have a nice day, you and your loved ones. =)