"There's absolutely no evidence that large quakes cause other large quakes on the other side of the globe."
Agreed. But it stands to reeason that quakes along the same subduction zone can trigger other, bigger quakes along the same zone.
There's also the weird thing that someone pointed out that seismic activity appears to be traveling arounf the Pacific Plate right now. Moving clockwise from the Tasmanian quake a month or so ago to Sumatra and now a volcano in Kamchatka.
Pure coincidence, probably, but fascinating never the less.
"...seismic activity appears to be traveling arounf the Pacific Plate right now... Pure coincidence, probably, but fascinating never the less."
Coincidence sometimes turns out to be the real thing. I and other people noticed that a lot of big quakes happened near full or new moons. (Full moon this month? 26th. Earthquake? 26th. How 'bout that!) It makes some sense since the sun and moon are lined up in either case. Of course, this was greeted with derision until some folks checked it out. See this article: http://www.naturalworldtours.co.uk/articles2001/feb/feb0301k.htm
I also remember pointing out to my 2nd grade teacher that S. America and Africa fit together pretty well. Ha, ha, the rest of the class said. They laughed at Alfred Weggener, too!