The U.S. Geological Survey reports another mid-size shake hit Southern California on Wednesday at 9:33 a.m. five miles below the surface with a magnitude of 4.5 and located within two miles from last night's 4.4 Yorba Linda episode and aftershocks.
Officials revised their initial estimate of the earthquake's magnitude down to 4.1 then back to 4.5. Yorba Linda is locatated about 30 miles southeast of downtown Los Angeles.
No injuries or damage has been reported from either quake.
USGS shows responses from people who felt the quake more than a 100 miles away in Santa Barbara and Oxnard.