SAN RAMON, Calif. (KGO) -- At 12:43 a.m. a measure 3.2 earthquake hit the San Ramon-Dublin border, followed by a 3.1 quake a minute later.
A magnitude 3.5 temblor struck around 4 p.m. on Tuesday and just six seconds after, a weaker 2.8 quake struck.
Hundreds of earthquakes have hit in the past two weeks. The largest being Tuesday's 3.5 quake. All were centered around San Ramon on either the Calaveras Fault, or off-shoots of it.
While seismologists still say that swarms such as this are not unusual and not cause for any extra concern, they are starting to worry residents.
Click here to see all the recent quakes that hit here in the Bay Area and around the world. And click here for tips from Prepare NorCal to get ready for the next big one.
Did you feel it? Share your experience by tagging it on Twitter, Instagram, or Facebook with #abc7now.
3.1, 3.2 earthquakes hit San Ramon around 12:43 a.m.