The first temblor was recorded around 4:15 a.m. about 1 mile east-northeast of Lennox
A 2.5 magnitude aftershock was recorded minutes later less than 1 mile northwest of Lennox.
The USGS reported the 4.0 magnitude quake centered about a mile east-northeast of Lennox at a depth of nearly 20 miles, which rattled the area about 30 minutes later.
Nearly 20 smaller temblors, including a magnitude 2.4 quake centered near Inglewood, were reported following the 4.0 magnitude.
People reported feeling the larger quake to our sister station in Los Angeles, with people as far as Palmdale and Laguna Niguel saying the temblor shook their area. The 3.3-magnitude quake was felt from the South Bay to the Montebello area, and to the Burbank area, according to the USGS.
There are no reports of damage or injuries.