Twin earthquakes shocked California today just four miles from San Bernardino, registering at about 3.5 on the richter scale, as X quickly lit up with posts that said the quake felt like 'jolts that ...

But there is no sign of either right now ... Seismic attenuation and stress on the San Andreas Fault at Parkfield: are we ...

That two inches -- the average distance the San Andreas fault moves each year -- has the potential to unleash an earthquake of epic proportions directly under the San Francisco and San Jose area ...