Thousands of Californians were rattled by an earthquake Sunday evening.

The US Geological Survey (USGS) recorded a magnitude 3.3 quake at 9:30pm PT (12:30am ET), centered about 22 miles north of San Francisco.

More than 4,100 people reported feeling the tremor, with reports stretching as far north as Vallejo.

The epicenter was located in Pinole, near the Hayward Fault, a 74-mile fault line that runs along the base of the East Bay hills.

The San Andreas Fault, stretching 800 miles, often garners the most focus in seismic studies, but experts caution that the Hayward Fault might be due for its own significant seismic event.

Specialists express increasing concerns about the likelihood of an earthquake exceeding magnitude 7.0 in the near future, as its last major occurrence was in 1886.

According to the USGS’s HayWired Scenario simulation, a magnitude 7.0 earthquake on the Hayward Fault could result in between 800 and 2,500 fatalities in major Bay Area cities like San Francisco and Oakland.

The smaller Sunday quake hit around the same time as anti-immigration raid protests filled the streets of San Francisco.

The quake hit around the same time as anti-immigration raid protests filled the streets of San Francisco

The US Geological Survey recorded a magnitude 3.3 quake at 9:30pm PT (12:30am ET), centered about 22 miles north of San Francisco

At least 60 people were arrested Sunday evening after the demonstration turned violent. 

Shaking from the earthquake was reportedly felt about 20 miles south as protests erupted in downtown San Francisco.

There have been no reports of injuries or damages as a result of the earthquake but, according to the 4,194 people who reported feeling shaking.

The quake came hours before crowds hit the streets of San Francisco in what they say was solidarity with protests in Los Angeles.

The protest was said to have begun peacefully at 6pm PT near a US Immigration and Customs Enforcement office on Sansome Street, but the crowd became tense as it stood toe-to-toe with police.

Officers began making arrests several hours later after protestors started vandalizing buildings and shattering windows. 

Mayor Daniel Lurie said: ‘Everyone in this country has a right to make their voice heard peacefully, and local law enforcement will always protect that right and the rights of everyone in our city to be safe.

‘But we will never tolerate violent and destructive behavior. … Violence directed at law enforcement or public servants is never acceptable.’ 

Local reports suggested those marching in San Francisco wanted to show solidarity with the protests in Los Angeles. At least three officers have been injured.

The protest was said to have begun peacefully at 6pm PT near a US Immigration and Customs Enforcement office on Sansome Street, but the crowd became tense as it stood toe-to-toe with police

Nancy Kato, a protester in San Francisco, told ABC 7News: ‘We’ve been watching what’s going on in LA, and we’re like, no.

‘The whole thing about going after immigrants and people who are undocumented, the most vulnerable of our populations that is so wrong.’ 

The protests in Los Angeles broke out on Friday, triggered by immigration raids that resulted in dozens of arrests of what authorities say are illegal migrants and gang members.

Local reports suggested those marching in San Francisco wanted to show solidarity with the protests in Los Angeles (pictured). At least three officers have been injured

Tensions escalated Sunday as thousands of protesters took to the streets in response to President Donald Trump’s deployment of the National Guard, blocking off a major freeway and setting self-driving cars on fire as law enforcement used tear gas, rubber bullets and flash bangs to control the crowd.  

Sunday’s protests in Los Angeles, a sprawling city of four million people, were centered in several blocks of downtown. 

It was the third and most intense day of demonstrations against Trump’s immigration crackdown in the region, as the arrival of around 300 Guard troops spurred anger and fear among many residents. 

The Guard was deployed specifically to protect federal buildings, including the downtown detention center where protesters concentrated.

Los Angeles Police Chief Jim McDonnell said officers were ‘overwhelmed’ by the remaining protesters. He said they included regular agitators who show up at demonstrations to cause trouble.

Several dozen people were arrested throughout the weekend of protest. One was detained Sunday for throwing a Molotov cocktail at police, and another for ramming a motorcycle into a line of officers.

Trump responded to McDonnell on Truth Social, telling him to arrest protesters in face masks.

‘Looking really bad in L.A. BRING IN THE TROOPS!!!’ he wrote.