"I have been watching with rising alarm as the number and violence of earthquakes at the northernmost end of the San Andreas system and the Gulf of California proliferate while the central section is absolutely still. This is a sign that the entire system is tearing itself apart and will resolve this dual action by a very sudden shift in the center which will be a possible category 8 or greater event."
Read : http://emsnews.wordpress.com/2010/01/10/6-5-quake-in-ocean-off-north-california-shore/#more-5829.
The author of this blog is generally very long winded and tends to apocalyptic views, but this article is well worth reading.
Keep in mind that to the best of my knowledge a major earthquake is coming, if not long overdue, and that the author is not a geologist or quake expert.