PLEASANT HILL (KRON) — Two earthquakes struck near Pleasant Hill Monday night within minutes of each other.
The first quake was 2.5 in magnitude.
The second quake struck minutes later and clocked in at 4.5.
The larger quake struck at 10:33 p.m., according to officials.
The quake was earlier recorded at 4.7, but downgraded.
No damage or injuries have been reported in Contra Costa County as of 11:24 p.m., according to the county sheriff.
According to KRON4 Meteorologist Lawrence Karnow, the size of the earthquakes can change quickly over time.
The series of quakes Monday night come just three days before the anniversary of the Loma Prieta Earthquake that struck the Bay Area in 1989.
Both quakes struck Monday night near Pleasant Hill, according to the USGS.
Residents across the Bay Area reported feeling the earthquake — from Bay Point to Martinez, Fremont and Fairfield.
A photo sent to KRON4 by a Martinez resident shows books and magazines off a shelf because of the quake.
Another photo taken by a KRON4 viewer in Benicia shows a photo off the wall.
BART is reporting residual delays of 10-15 minutes because of the earthquakes.
Trains are running at reduced speeds.
The National Weather Service says there is no tsunami threat because of the quakes.
This is developing, check back for updates