[neverdem]

Thanks for the ping. I was going to post this.

[Robert A Cook PE]

Like the Los Angelos "Big One" earthquake, the expected magnetic polar switch is a l-o-o-o-o-o-o-o-o-ong time overdue:

It has no been in a "stable" position for longer than it ever has before:

http://wrgis.wr.usgs.gov/docs/chron/paleomag/TIME.HTML

More general info:

http://wrgis.wr.usgs.gov/docs/chron/paleomag/TIME.HTML