Archimedes said it.

In previous posts on this blog you will see very strong links to both Archimedes Eureka and timed earthquakes.

The Eureka links were posted before the first big earthquake shook the Californian town of Eureka.

Yesterday it happened again -

5.9 quake rattles North Coast San Francisco Chronicle (02-04) 15:06 PST EUREKA -- A 5.9-magnitude earthquake shook the North Coast on Thursday in the area where a stronger temblor hit last month. Eureka is in the San Francisco area and I think this will turn out to be important. I hope Tony Blair understands this.