Los Angeles registered a 4.6 earthquake on Monday near Highland Park, according to the US Geological Survey.
The earthquake was registered about two miles southwest of Pasadena.
The LAPD has asked LA residents to prepare for aftershocks.
Officials said the quake was felt across the LA area, as far as San Diego and Ventura.
People reported feeling it strongly across the Los Angeles area. A medical building shook and residents said glasses and dishes rattled in many places.
Social media users have shared footage of the moment the ground started shaking.
ESPN’s broadcast was live from the LA studio was live when the earthquake hit, capturing it on air.
There have been no reports of damage or injuries in the area.
The Los Angeles Times noted that many Californians received alerts on their phones warning of the earthquake.
It comes after the city registered a 5.2 earthquake last Tuesday – the strongest to strike the state this year.
That earthquake was felt at Dodger Stadium in the middle of the seventh inning of a baseball game between the Los Angeles Dodgers and the Philadelphia Phillies, but the quake garnered no discernable reaction from the crowd.
An average of five earthquakes with magnitudes of 5.0 to 6.0 occur per year in California and Nevada, according to the Los Angeles Times.
This is a developing story. Check back with updates.