Bendandi might have been on the right track, because gravitational forces from the Sun, Moon and planets do not act as pinpoint forces. They cause a bulge in the Earth's crust that is spread out over a pretty wide distance. Hence, it's not inconceivable that the quake in Spain was related to this cause. But on the other hand, it's also quite possible that there was no link at all.

Something to think about ...

the quake at Sendai, Japan happened at roughly the same time that the Moon made the closest approach to the Earth. During the same general time period we had two strange incidents happen with fish life in the sea in California. Huge numbers of sardines became confused and accidentally wandered into the "wrong" harbors that were not part of their normal migration route. They became trapped and died from oxygen depletion in the marina's. This happened in Redondo Beach and Ventura. I'm not saying that the gravity effects were what confused the fish. But it's possible that the Moon's gravity changes altered the inner core of the Earth, and subtly changed the local magnetic fields - causing migrating creatures to become lost.

Who knows. It seems like scientists should look at this more closely.

Pete #2