Thousands of people in Sonoma County are making sure they’re ready for disaster. Roughly 4,500 people showed up to the county’s first Sonoma Ready Day yesterday in Santa Rosa. It was a chance for people to learn about what’s needed when disaster strikes, whether it’s a flood or earthquake. Most of the 2,400 free emergency backpacks were gone by an hour and a half into the event, and an electric sign outside of the Fairgrounds urged people to still attend even though the backpacks were gone. There were more than 60 booths where people learned about things like health and wellness during emergencies.