Just posting back that while there was an increase of seismic activity all over the place, globally, after the 8,2 Richter earthquake of Sumatra, there was no reoccuring peak afterquake on April 18. uoon the 90? movement on the Moon. At least I did not observe anything of the kind. Curiously enough there was a afterquake on April 20. upon the 120? trine of the Moon to it's radix position (+/- 2 hours), but I simply noted this as 'different' and there was really nothing to fuss about. With everything else going on the last month the data has got deleted, probably by mistake.

Quite frankly, the Earth has been rattling with EQ's in the 5-6,5 Richter range after the 8,2 Richter earthquake that hit Sumatra in April.
Chile, Indonesia, Mexico, Azerbaijan, Japan, Cyprus, Italy, Bulgaria and the Norwegian Sea. The activity has been significant, but I can't see the connection and don't have the resources to look into it and monitor patterns. May 26. does not stand out in any way, unless you want to give a +/- 3 day timespan and include Bulgaria 5,8R on May 23. and Italy 5,8R on May 29. Both earthquakes have the same size and occur at similar depths of 8km below the Earth's surface. But there is no need to get sloppy and it is better to let the matter pass.