Lost orange tabby Milo with blue collar

I’m missing my orange tabby Milo. Yesterday around 4:15 pm, he slipped out the back door of my apartment on 4th Street in El Centro, near the Imperial County Fairgrounds. Milo is a short-haired orange tabby, about 9 pounds, with a white chest and a tiny notch in his right ear. He wears a bright blue collar with a bell and has a faint white tip on his tail. This is really stressful—he's my only pet and I worry he might be frightened, so I’d really appreciate any help in getting him back home.