It was a rude awakening for thousands of residents who felt a 4.1 earthquake that rattled the Valley.
According to the U.S. Geological Survey, the quake struck just before midnight Thursday. The epicenter was just a few miles southeast of Kettleman City.
Dozens of peaople commented on the KSEE24 Facebook page about feeling the temblor.
"Felt the quake in Fresno. It sounded like somebody was running on my roof. My boyfriend said it was like Santa was doing a pre-test run before Christmas," wrote Sheyla Aucar.
"We not only felt it. We also heard the rumbling that sounded like a freight train," wrote Exetta Akhund in Visalia.
Folks from Porterville and Exeter also posted our on Facebook page that they felt they quake, too.