David,

The discussion that Roger was referring to had to do with a vortex somehow being created in the atmosphere from the charges in the air. Then there was supposed to be a discharge from this vortex that supposedly pulled up on the earths crust causing the earthquake. The theory was called the "Dew point theory" and was based on lack of dew for 3 days or more.

Another seismologist had a similar theory on solar activity and earthquakes where the electrical charges from a solar flare filtered down to the earth and lubricated a fault allowing it to slip more easily. He was able to correlate solar flare activity to quakes in two different locations. Its been several years since I've heard anything more on his studies though.

I haven't tried to do any detailed study on this, but it sure is interesting to see the level of seismicity drop when storms are going thru.

Dennis