the missing vehicles are a 2010 white kia sedona van, license plate number 6lrx798.a civic, 4epp234. none of the victims was hurt. anyone with information is asked to call the police at 415-721-4547. new this morning, small earthquake shook sonoma county about 2:23 this morning. it was a 4.1 magnitude quake that hit about four miles east of the geysers, an area surrounding the single largest geothermal field in the world and often produces small quakes. this time, no reports of injury or damage. >>> as we mentioned, today is cinco de mayo, and police in the south bay are preparing for massive crowds tonight. they are hoping to avoid the rowdy and violent crowds that plague the city celebration in past years, the most recent have been mostly peaceful. today in the bay's george kiriyama shows us the plan for today. >> on downtown street corners, you see them. a beefed up police presence on standby in case anything happens this cinco de mayo weekend. >> because of that and because of years past, we do have enough officers that will be out there in full presence, highly