UPDATE: A 4.0 magnitude earthquake hit the South Bay at 8:00 p.m, followed by a smaller 2.3 magnitude aftershock at 8:17 p.m., according to the USGS. Wednesday evening. The quake was centered about three miles south of San Juan Bautista. No injuries or damage has been reported.
A scary wake up call for people in the South Bay this morning. A series of earthquakes hitting within minutes of each other. The biggest one hit at 12:51 a.m. and registered 4.5 according to the USGS. The quake struck about six miles southeast of San Juan Bautista. That's about 45 miles southeast of San Jose City Hall.
USGS geophysicist Amy Vaughn tells NBC Bay Area the quake hit on the San Andreas fault - and people could feel the shaking as far south as Big Sur, all the way up to San Francisco.
It was followed by at least two aftershocks, registering 3.4 and 2.7.
Viewer Kristie Prendez Correa tells NBC Bay Area News: "I'm downtown. We live in a 100-year-old victorian. It was definitely a roller. Went on forever."