May not mean anything, could even be relieving stress build-up (though I'd like to hear that from USGS or Caltech people), or it could be not so good - always waiting for the Big One...
I miss California.
Speculations on astronomy, astrophysics, news I find interesting,
theoretical issues, science and science policy.
In particular: gravitational radiation sources, black holes, planets and astrobiology.
I will digress into computational physics, science fiction and general issues and basically whatever I feel like whenever.
And, of course, cats.
Steinn Sigurðsson is an astrophysicist at Penn State.