
An almost 4.0 magnitude earthquake rocked the East Bay on Wednesday morning.
The magnitude 3.8 earthquake, centered on the border of Danville and San Ramon, struck at 11:46 a.m. Another 2.6 magnitude earthquake hit the region at 11:58 p.m.

KCBS Radio's Matt Bigler said he felt the tremor in his San Leandro home.
"I was in the basement and definitely felt an earthquake. It was almost like a rolling sensation," he said. "I didn’t feel the usual jerk of the house."
"It was definitely a jolt," he added.
A KCBS Radio listener named Debbie, who was in a Trader Joe's parking lot in Castro Valley, told the station she thought somebody hit her car when the earthquake struck.
“It was a very strong jolt, enough that it kind of scared me,” she said.
Former KCBS Radio Reporter and Editor Mark Seelig was working from his Lafayette home during the shake. "I felt enough earthquakes to know it was pretty decent but it was fast," he said. "My heart started racing and I nearly dove under the desk for a moment there, but it calmed down."
An earthquake that small isn't expected to have caused any damage.
This is a developing story. Check back for updates.