After three powerful quakes rocked the Los Angeles area on Saturday night, authorities announced the deaths of seven people and 15 injuries in three separate aftershocks.
Three people were killed and 14 were injured in the epicenter of the epicentre on the Pacific Coast, according to the Los Gatos County Sheriff’s Department.
The deaths of the victims are believed to be related to a small earthquake that struck just after 11 p.m. local time.
The first quake was felt in the Los Feliz area, the second in the San Fernando Valley and the third in the East Los Angeles community of South Lake Tahoe, according the Los Alamos National Laboratory.
The fourth and fifth quakes were felt in nearby Ventura County and the Los Olivos Valley, according San Diego County Emergency Management spokesman Joe Garofalo.
The magnitude 7.2 earthquake struck at 10:48 p.M.
ET (0448 GMT), according to NWS, and its epicenter was near the town of Lomas, about 120 miles east of the Los Altos, California, metropolitan area.
The Los Alamo lab said that the quakes measured at 6.6 and 6.3 on the Richter scale, the same scale used in the USGS quake measurement system.
A magnitude 7 quake has a magnitude of 7.5.
“The magnitude of the second magnitude 7 was quite a bit smaller than the magnitude of that first one, which was much bigger,” Garofallo told ABC News.
“And it’s very rare for the magnitude to be so small,” he said.
The third quake, which occurred in Ventura County, was felt by some 10,000 people.
The sixth and seventh quakes, which struck in the Santa Monica area, were felt by more than 15,000 residents.
The Santa Monica Valley was hit with a magnitude 7 aftershock at 1:15 a.m., Garofale said.ABC News’ Adam Lee contributed to this report.