The Califorce earthquake, a magnitude 9.0 earthquake, struck the area of Calexico, California, and Los Angeles, killing 29 people and injuring more than 300 others, authorities said.
An official in Los Angeles County told the Associated Press that a man who survived the earthquake was treated for hypothermia.
The official did not give a cause for the man’s death.
In Los Angeles’ Ventura County, which was also hit by the quake, officials said that 11 people were killed and another 15 were injured.
A preliminary tally by the Los Angeles Fire Department put the death toll at 23.
At least 50 people are believed to have died in the city.
The Associated Press is not naming victims as the investigation continues.
The Los Angeles Times reported that two people died of injuries suffered when a building collapsed after the quake.
A Los Angeles firefighter who suffered injuries in the quake was treated at a hospital and released, the newspaper reported.
The quake caused an area of the city to be inundated with water for more than two hours.
Officials said the quake’s epicenter was about 1,800 feet (610 meters) from the city of Los Angeles.