The U.S. Geological Survey is reporting three earthquakes, two with a 3-plus magnitude, have struck Concord Wednesday morning.
The USGS says the first quake, a magnitude 3.2, was centered east of Highway 242 in Concord and struck at about 7:01 a.m. PDT Wednesday. The second and largest, a 3.6-magnitude, struck at 7:32 a.m. It was later downgraded to a 3.5. The third, a 2.6-magnitude, hit shortly after at 7:35 a.m.
Over 100 people, mostly in Pleasant Hill, reported feeling the earthquakes, according to USGS' online "Did You Feel It" survey.
People chimed in over Twitter after some light shaking.
Comment: Earth is 'opening up'. Other big earthquakes in just this one region over the last couple of months include:
March 16 2015 - 6,3 quake
March 30 2015 - 7,7 quake
April 30 2015 - 6.9 quake
May 1st 2015 - 7.1 quake
May 5th 2015 - 7.5 quake