The second and third overlays to get a hold of are the magnetic anomaly overlays..and the 'grace gravity map' overlay.
http://www.csr.utexas.edu/grace/gravity/
and the correct kmz file for the grace map overlay:
http://www.google.ca/url?sa=t&rct=j&...,d.cWc&cad=rja
http://geomag.org/models/wdmam.html
To run all three, at the same time. Then feed in the various incidents.
With these, correlation and then extrapolation into understanding, can get even tighter.
And a whole lot more:
http://www.continentalshelf.org/kmz.aspx
With these extra two, you can change the intensity of the overlays, to get to the most effective blend, or change the mix. In this way, you will probably find that if the given particular incident is not exactly on a ley line, it may be in a 'hot spot'. Then the UFO sightings, planes going down, all kinds of things can be looked at.
As well... there are points where all three overlap, which can really bring things to a fever pitch in the given location. Add in the astrology of the moment (vibrational and/or resonance peaking) and then things can really pick up in the energy considerations.