Both Japan and California are on top of several active fault lines.
Both have 100s of small earthquakes every day.
So predicting an earthquake will occur in California is like "predicting" that the sun will rise in the east.
Anyone who has "visions" is in need of more psychiatric care than can be obtained on YA, and that includes those who believe such visions. My suggestion: today is October 1, Thursday is the Third. Wait until about October 10, then ask this crackpot to apologize publicly.
Youtube is not a creditable source of info.
If you live anywhere close to LA especially SF, PLEASE GET OUT NOW! Look for birds flying away or not seeing any at all and dogs and cats to act funny or "weird" hrs or days before it happens.
http://www.bbc.co.uk/nature/15945014
There have been several predictions of a large earthquake, larger than the one in japan that happened in 2011 for this thursday or early october. There is a video on youtube that talks about it. Its a man that explains how his mother is having visions and dreams of california being destroyed. Im honestly scared, i dont wanna over react though. Well the same woman that is having these visions , also had visions of the japan earthquake a few days before it had occured. What do you think? If you wanna know more info just google it btw.