A rockslide that occurred around 10 a.m. today has roads closed and people trapped, said the Mercury News.
Officials are calling it a "fairly significant" slide, with trees and rocks blocking the road.
"I had to four-wheel it over to my neighbor's driveway but many others are stuck in or out. I am not sure if I will make it home tonight and so have packed a bag," Nelson Road resident Jeanette Cook said "Although the road is not completely blocked by mud, the county has closed it for safety reasons."
There were reports of rocks still coming down at 1 p.m.
A geologist was sent to assess the stability of the slope, and the Scotts Valley Fire District is helping provide emergency access to the, at least 40, residents who are trapped one side or other.
County spokeswoman Melodye Serino said there was no time frame available for when the mess would be clear.