Seismologists now say the earthquake that rolled across Los Angeles before dawn was magnitude 4.4.
The 6:25 a.m. Monday temblor was initially estimated at 4.7.
News anchors at TV station KTLA felt the rumble as you'll see below.
The quake was centred 15 miles (24 kilometres) west-northwest of the downtown civic centre and occurred at a depth of about 5 miles (8 kilometres).
The Los Angeles Fire Department has received no immediate reports of damage.