An earthquake has struck near the Yellowstone National Park, triggering a tsunami that killed at least two people and left thousands homeless, according to emergency officials.
Authorities were searching for the three people who died, with the search on Sunday for a fourth person who was rescued.
Officials said they were expecting to have more information on Sunday evening about the three deaths, and said that more details could be released soon.
The earthquake occurred about 1:15am local time (4:15pm AEST) on Sunday.
It was felt in parts of southern California, with a tsunami warning issued for several parts of the state.
Yellowstone National Parks tweeted that the tsunami was felt as far away as San Diego County.
Tsunami warnings were also issued for parts of Southern California.
“We’ve seen a lot of things in the last week that have been just too shocking,” park ranger Dan Fincke told the San Diego Union-Tribune newspaper.
People in southern California were advised to keep their windows closed, stay inside and stay away from the water, which is expected to remain at about 5km depth.
A woman is seen outside the San Bernardino County building where the earthquake struck, as seen on March 7, 2019, in San Bernardino, California.
Picture taken March 7 and released March 8, 2019.
Source: AP Photo / Getty Images It also released data that it said showed the quake measured 7.5 on the Richter scale, meaning that it could have been 7.0 in magnitude or larger.
An earthquake is measured by a scale of 1 to 10 with 1 being the strongest and 10 being the weakest.
More than 1,000 people were evacuated from buildings at the nearby Golden Gate Bridge, which also collapsed and caught fire.
Fincke said that about 200 people were in the evacuation centres and were expected to be moved to temporary shelters as soon as possible.
Thousands of people have been evacuated in California and hundreds of people were sent to shelters across the country in the wake of the quake, according the Associated Press news agency.
Many were evacuated due to the potential of the water in the area to burst, with water rescuers trying to locate those stranded.