A magnitude 3.0 earthquake with an epicenter in Kensington, just north of Berkeley, jiggled and jangled the East Bay at almost precisely noon today. Berkeleyside reports that it was initially reported as a 3.3M, but was then downgraded. The tiny temblor occurred along the Hayward Fault, and was apparently felt as far away as Alameda.
The USGS has some details about the Hayward Fault for you, if you want to do a little reading. As you may know, earthquake scientists predict the next big earthquake in the Bay Area will be on this fault because it hasn't seen a big one since 1868, and it's due.
This little one could just be the result of the land drying out after a wet winter, as discussed in a recent scientific paper.
Let this be another reminder to get your earthquake kit together!