Northern California was rocked by a 7.0 magnitude earthquake late Thursday morning.
After the tremor struck at 10:45 a.m., just over 60 miles to the west-southwest of Humboldt County’s Ferndale, a tsunami warning was issued for a wide swath of the West Coast. The warning extended from Oregon to central California, and at least 5.3 million people in California were affected.
The warnings were canceled by the National Weather Service soon after they were issued.
The agency estimated that more than 1.3 million people felt its impact. There were no immediate reports of major damage or injuries, but some store owners said their goods had been broken.
California’s governor signed an emergency declaration in response to the day’s events, activating state emergency resources.
“It was very frightening,” 86-year-old Carol Ruth Silver, a veteran San Francisco politician, told The Independent. “It didn’t say how far up [the waves] were going to go... my thoughts were: let’s get out of here!”
Within about ten minutes, Silver and her companions were bundling into a car and heading for a nearby hilltop – just like many San Franciscans who took the warning seriously and fled for higher ground.
A magnitude 7.0 earthquake struck off the coast of northern California
- The tremor was located just over 60 miles west-southwest of Ferndale
- More than 5.3 million Californians were under a tsunami warning before it was canceled
- ‘Hundreds’ of smaller aftershocks expected after California quake
- San Francisco residents were told to move off the coast
More than 5 million California residents are under a tsunami warning
Thursday 5 December 2024 19:40 , Julia MustoThere are at least 5.3 million people in California under a tsunami warning.
Tsunami Warning 1 for areas of OR & N. CA: See https://t.co/npoUHxX900 for alert areas. M7.3 045mi SW Eureka, California 1044PST Dec 5 pic.twitter.com/NFCbU5EaKa
— NWS Tsunami Alerts (@NWS_NTWC) December 5, 2024
5 million people under tsunami warning after 7.0 quake hits off California coast
A 7.0 quake struck west-southwest of Ferndale
Thursday 5 December 2024 19:44 , Julia MustoNotable quake, preliminary info: M 7.0 - 99 km WSW of Ferndale, California https://t.co/Gsvo44wKJa
— USGS Earthquakes (@USGS_Quakes) December 5, 2024
The San Francisco Zoo said it was closed due to the emergency
Thursday 5 December 2024 19:45 , Julia MustoThe Zoo has closed due to national weather emergency and tsunami warning. Guests have been evacuated, animals secured and staff have moved to higher ground.
— San Francisco Zoo & Gardens (@sfzoo) December 5, 2024
San Francisco Mayor London Breed tells residents to move off the coast and 'at least one block inland’
Thursday 5 December 2024 19:48 , Julia MustoWe are activating our Emergency Operations Center in response to the Tsunami Warning. Please move off the coast and at least one block inland.
— London Breed (@LondonBreed) December 5, 2024
Public safety personnel are deploying to the coast to warn people to move inland.
We will continue to provide updates as we have… https://t.co/uSStttyM4D
What California earthquake felt like on the ground in San Francisco
Thursday 5 December 2024 19:49 , Josh MarcusAt first, I wasn’t even sure it was an earthquake. Maybe it was just a truck rumbling by my San Francisco apartment. Maybe I just hadn’t had my coffee.
Then a tsunami warning came blaring out of my phone, confirming that the barely perceptible tremor I felt really was the real thing, and a serious risk at that.
A magnitude 7 earthquake had struck at a depth of 8 miles, 45 miles southwest of Eureka, a coastal city about 270 miles north of the Bay Area.
The quake itself may have passed, but forcasters suggest the waves it might generate could hit the coast within the next half hour, and advise getting to high ground.
Check tsunami.gov for more information.
There is no longer a tsunami threat, NWS says
Thursday 5 December 2024 20:03 , Julia MustoThe National Weather Service said that there is no longer a tsunami threat from the earthquake.
The agency recommended affected residents remain observant and “exercise normal caution near the sea.”
“Otherwise, no action is required.”
The tsunami Warning is canceled for the coastal areas of California and Oregon. No tsunami danger presently exists for this area. This will be the final U.S. National Tsunami Warning Center message for this event. Refer to https://t.co/npoUHxX900 for more information.
— NWS Tsunami Alerts (@NWS_NTWC) December 5, 2024
‘An uneasy feeling’: Coastal earthquake rattles San Francisco as tsunami warning in effect
Thursday 5 December 2024 20:05 , Josh MarcusAn large earthquake off the Northern California coast on Thursday morning could be felt hundreds of miles away in the San Francisco Bay area, setting nerves on edge.
“First time ever felt an earthquake in [the South of Market neighborhood] San Francisco,” venture capitalist Jesse Heikkilä wrote on X. “Not one where you scream and run, but it definitely is an uneasy feeling.”
Christopher Sherry, of the nearby Alameda County District Attorney’s Office, said he also felt the quake, and posted a video on social media of his shutters swaying in his office.
The quake, and an accompanying tsunami warning, put the city on high alert.
Mayor London Breed announced on Thursday she was activating the city’s emergency operations center and sending public safety staff to warn residents to get inland.
Bay Area Rapid Transit, meanwhile, announced it stopped metro service on the Transbay Tube connnecting San Francisco and Oakland.
The San Francisco Zoo has closed and evacuated guests, as well as securing animals and staff.
SF Fire Department warns people to beware of aftershocks, broken glass
Thursday 5 December 2024 20:07 , Julia MustoEarthquake! Watch out for broken glass and fallen items. Seek shelter and be prepared for more shaking from aftershocks. Check in with family as able. Evacuate if you smell gas, see smoke or fire. pic.twitter.com/5NCOeCz72c
— SAN FRANCISCO FIRE DEPARTMENT MEDIA (@SFFDPIO) December 5, 2024
More evacuations were ordered as a result of the earthquake
Thursday 5 December 2024 20:12 , Julia MustoMore evacuations were ordered as a result of the earthquake, according to KRON4.
The station said Pacifica’s Vallemar Elementary School at 377 Reina Del Mar was evacuated.
Marin County Sheriff’s Office warns coastal tides will still rise
Thursday 5 December 2024 20:15 , Julia Musto“No tsunami effect for Ca Bay Area at this time,” the Marin County Sheriff’s Office said. “Coastal tides will rise, so it is recommended to stay away from coastal areas.”
No tsunami effect for Ca Bay Area at this time. Coastal tides will rise, so it is recommended to stay away from coastal areas
— Marin County Sheriff (@MarinSheriff) December 5, 2024
USGS says an initial assessment estimates a low likelihood of shaking-related fatalities
Thursday 5 December 2024 20:18 , Julia MustoThe initial PAGER estimates a low likelihood of shaking-related fatalities. Some damage is possible and the impact should be relatively localized. PAGER stands for “Prompt Assessment of Global Earthquakes for Response.” More information available here: https://t.co/jZ1ckYO9iC https://t.co/r1eB6gDidi pic.twitter.com/QdD4ewZgLw
— USGS Earthquakes (@USGS_Quakes) December 5, 2024
Bay Area Rapid Transit tells passengers to expect major delays
Thursday 5 December 2024 20:19 , Julia MustoBART is recovering from an earlier problem. We have resumed normal train service. Please expect systemwide major delays.
— BART Alert (@SFBARTalert) December 5, 2024
California Highway Patrol advises people remain cautious while traveling throughout the rest of the day
Thursday 5 December 2024 20:23 , Julia MustoState Senator Mike Mcguire says immediate assistance is being sent to Humboldt and Del Norte Counties
Thursday 5 December 2024 20:25 , Julia MustoThe State is sending immediate assistance to Humboldt & Del Norte Counties to assist with emergency operations.
— Mike McGuire (@ilike_mike) December 5, 2024
There are reports of some homes that have come off of foundations in the greater Eel River Valley region of Humboldt.
Approx 10k customers are currently without power…
Governor Gavin Newsom tells Californians to heed local emergency responders
Thursday 5 December 2024 20:32 , Julia MustoCalifornia Governor Gavin Newsom said emergency officials were responding to the quake.
“Californians should follow guidance from local emergency responders,” he said.
USGS says the earthquake was a ‘strike-slip’
Thursday 5 December 2024 20:35 , Julia MustoThe earthquake was primarily strike-slip, meaning two tectonic plates slid past each other. These types of earthquakes are less likely to cause tsunami because their movement is primarily horizontal with minimal vertical movement of the ocean floor. https://t.co/3vWypuPqHi https://t.co/ZMAKO8djEe pic.twitter.com/1zOFxKHyEx
— USGS Earthquakes (@USGS_Quakes) December 5, 2024
“The earthquake was primarily strike-slip, meaning two tectonic plates slid past each other,” the U.S. Geological Survey said in a post on social media.
Strike-slips are less likely to cause tsunamis because their movement is primarily horizontal with minimal vertical movement of the ocean floor.
Photos show Californians responding to tsunami warning
Thursday 5 December 2024 20:41 , Julia MustoThese are the warning signs of a tsunami
Thursday 5 December 2024 20:44 , Julia MustoFor Californians who live on the coast, this is a valuable tool when an earthquake occurs. https://t.co/aJYCCOwjCp
— CA Gov Ops (@CAGovOps) December 5, 2024
What did the earthquake feel like?
Thursday 5 December 2024 20:52 , Julia MustoKaitlin Graves, an employee at the Petrolia General Store, said that the shaking was intense and lasted for just 10 seconds.
“It was a big earthquake. It was a lot of up-and-down shaking,” Graves said in a phone interview with The Los Angeles Times. “It felt like the woozy feeling you get when you’re in an elevator.”
Social media users reported feeling it much longer than that.
Evacuation orders in Berkeley have been lifted
Thursday 5 December 2024 20:54 , Julia MustoThe Berkeley Police Department had told residents located west of Seventh Street to head inland immediately and to leave behind anything that was not essential.
Waves were forecast to reach the region at around noon, according to Berkeleyside.
The Tsunami Warning has been CANCELLED.
— City of Berkeley (@CityofBerkeley) December 5, 2024
Evacuation orders for West Berkeley have been lifted. It is safe to return to the area.
View Berkeley’s real-time emergency map: https://t.co/IC9XvJ3que https://t.co/JqpGqaoCkb
Breed says San Francisco Emergency Operations Center will continue to monitor situation
Thursday 5 December 2024 20:58 , Julia MustoThe tsunami warning has been lifted. We will continue to operate our Emergency Operations Center to monitor the situation. Be aware there still may be large swells along the coast and avoid the water because of the possibility of dangerous sneaker waves. https://t.co/xvJA1xeqLz
— London Breed (@LondonBreed) December 5, 2024
Tsunami map shows how San Francisco could be devastated
Thursday 5 December 2024 20:59 , Julia MustoCalifornia Department of Conservation’s tsunami map website experienced outages after warnings, report says
Thursday 5 December 2024 21:11 , Julia MustoThe California Department of Conservation’s tsunami map website experienced outages Thursday morning after the tsunami warnings across the California coast, according to The San Francisco Chronicle.
It displayed an error message.
USGS scientist says large earthquake was followed by smaller aftershocks
Thursday 5 December 2024 21:18 , Julia MustoStephen DeLong, a geologist with the USGS Earthquake Science Center, said in a news briefing that there was one large earthquake followed by several smaller aftershocks.
DeLong said it was too early to fully assess the scale of the damage, according to The New York Times.
Dozens of smaller earthquakes were reported around California on the agency’s website.
This year has seen several earthquakes with magnitude 7.0 or higher
Thursday 5 December 2024 21:30 , Julia MustoThis year has seen several earthquakes with magnitude 7.0 or higher.
In August, a tremor of the same magnitude struck Russia, and a 7.1 hit Japan’s Hyuganada Sea.
Chile saw a 7.4 quake in July after a 7.1 shook the Philippines.
In June, a 7.2 impacted Peru.
The earlier months were relatively quiet, other than a 7.4 in Taiwan, a 7.0 in China, and a 7.5 on Japan’s Noto Peninsula.
San Francisco senior flees for higher ground after massive quake: ‘It was very frightening’
Thursday 5 December 2024 21:45 , Io DoddsSan Francisco resident Carol Ruth Silver, 86, quickly bundled into a car and evacuated to a nearby hilltop when she got the tsunami warning this morning, reports The Independent’s Io Dodds (who also lives in the city).
Silver got the alert as she was drinking her morning coffee and eating her oatmeal. While she was still absorbing it, a friend arrived and showed her the US government’s official danger map – with the entire San Francisco peninsula marked in bright red.
In fact, the actual evacuation zone was much smaller and limited to low-level coastland. But with no clear picture the tsunami was going to be, Silver, her friend, and a family member fled for higher ground.
“It was very frightening,” she told The Independent. “It said we’re in danger and you need to get out of where you are. It didn’t say how far up it was going to go ...“My thoughts were: let’s get out of here!”
From her chosen roost of Corona Heights Park, just above the city’s Castro LGBT+ district, the party had a good view as nothing much happened.
“We were able to sit comfortably and listen to the warnings until we heard that whatever was gonna happen had happened,” Silver said.
Though her house in the Mission District was not in danger, Silver is glad that she took the situation seriously and evacuated.
“It is a warning that we in California live right above cracks in the crust of the Earth, and we have to at all times be ready with our evacuation,” she said.
Just make sure that you don’t forget your supplies.
“I have a bright red emergency backpack ... with a medical kit, and water, and things like that,” says Silver. “I should have taken it with me, but I did not.”
BART now reports a 10-minute delay
Thursday 5 December 2024 21:48 , Julia MustoBART is recovering from an earlier problem. There is a 10-minute delay system wide due to an ealier earthquake and tsunami warning
— BART Alert (@SFBARTalert) December 5, 2024
California governor says its’ state protocol to issue tsunami warnings after earthquakes that are magnitude 5.0+
Thursday 5 December 2024 22:00 , Julia MustoGov. Gavin Newsom of California, speaking at a news conference on Thursday, said it was the state’s protocol to issue tsunami warnings whenever an earthquake with a magnitude of more than 5.0 strikes a coastal region.
He said he had signed an emergency declaration for the region.
“It’s another reminder of the state that we live in and the state of mind that we need to bring to our day-to-day reality here,” he told reporters.
More than 16K California customers are without power after the earthquake
Thursday 5 December 2024 22:15 , Julia MustoPower outage tracker PowerOutage.US reports 16,465 customers are without power in California.
WH says Biden has been briefed on the earthquake
Thursday 5 December 2024 22:30 , Julia Musto“The President has been briefed on the 7.0 magnitude earthquake off the coast of northern California. At his direction, Senior Administration and FEMA Regional officials are in touch with their state and local counterparts in California and Oregon,” White House Spokesperson Jeremy Edwards said in a statement Thursday afternoon.
“We stand ready to provide further support as needed—at this time there are no requests for federal assistance,” he said. “We encourage all residents to remain vigilant and listen to local officials.”
California has been hit by more than 150 tsunamis in over 200 years
Thursday 5 December 2024 23:00 , Julia MustoThe California Geological Survey says the state’s shores have been struck by more than 150 tsunamis since 1800, most of which were minor.
Previous research from the USGS identified the natural forces as signifcant threats to low-lying communities on its coast.
The 2013 study said the tsunami-inundation zone impacts hundreds of thousands of residents and land in 94 incorporate cities, 83 unincorporated communities, and 20 counties on the California coast.
In that zone, there are schools, daycares, banks, grocery stores, amusement parts, beaches, national parks, and other tourist areas.
“Community exposure to tsunamis in California varies considerably—some communities may experience great losses that reflect only a small part of their community and others may experience relatively small losses that devastate them,” the study’s authors said.
California utility is assessing its gas and electric system after quake
Thursday 5 December 2024 23:20 , Julia MustoIn response to today's earthquakes, PG&E is assessing its gas and electric system. Avoid turning off your home’s gas unless you hear gas blowing or smell a leak (there could be a delay in restoring service). If you smell gas, vacate the property, go up wind and call 911 and then… pic.twitter.com/ijZFDS6zy4
— Pacific Gas & Electric (@PGE4Me) December 5, 2024
USGS received more than 14K reports from people who felt the earthquake
Thursday 5 December 2024 23:40 , Julia MustoThe United States Geological Survey has received more than 14,000 reports from people who felt the earthquake.
They came from as far north as Salem, Ore., and as far south as California’s San Joaquin Valley, according to the agency.
California emergency managers have turned on ALERTCalifornia’s Barry Ridge camera to monitor Eureka and Humboldt Bay
00:00 , Julia MustoA tsunami warning was issued at 10:44 on 12/5 for Northern California and Oregon and emergency managers have turned ALERTCalifornia's Barry Ridge camera to monitor Eureka and Humboldt Bay. Learn more at https://t.co/SNKbJc2o3d and see the view live at https://t.co/XFh1MJ0Q5m pic.twitter.com/qxyKkPue2i
— ALERTCalifornia (@ALERTCalifornia) December 5, 2024
See it: Newsom’s press briefing after the earthquake
00:20 , Julia MustoLIVE NOW: Governor Newsom makes an announcement on transnational commerce and border security. https://t.co/fhqK0xvBQ9
— Governor Newsom (@CAgovernor) December 5, 2024
Tsunami warning was a wakeup call for Bay Area family
00:40 , Josh MarcusAuthorities ended up calling off a tsunami warning for Northern California on Thursday after an offshore earthquake, but the circumstances still left an impact on Oakland resident Nuala Bishari.
She writes in the San Francisco Chronicle that Thursday’s scare prompted her family to drill down on the details of their plans for a natural disaster, like how to stay in touch and which supplies they should have on hand.
“We’re considering expensive, long-range walkie-talkies in case cell service goes down,” she wrote. “I found an old backpack I can use as a go bag. I’m shoving in passports and car titles as I write this.”
“There’s a lot to figure out. But as stressful as Thursday’s tsunami warning was, it was a wake-up call for all of us to be better prepared,” she added. “Next stop for me: the grocery store, to finally stock up on emergency food.”
‘Hundreds’ of smaller aftershocks expected after California quake
01:00 , Josh MarcusA series of smaller aftershocks are expected over the next week after today’s 7.0 magnitude earthquake off the coast of California.
More than a dozen have already been reported.
The aftershocks will weaken over time, though there’s still about a five percent chance of an earthquake greater than 6.0 in magnitude over the next week, Christine Goulet, the director of the USGS Earthquake Science Center, told NBC News.
“Following a 7, there could be fairly large aftershocks,” she said. “As time goes by, they’re going to be less frequent and smaller.”
“Several aftershocks have already occurred and will continue for the next week or so,” according to the Pacific Northwest Seisemic Network. “There is a 35% chance of one or more aftershocks that are larger than M5. There will likely be dozens to hundreds of smaller aftershocks within the next week in the magnitude 3 range.”
The new risk of politicized disaster aid
01:30 , Josh MarcusThankfully, tsunami waves did not inundate the West Coast today.
If they had, communities in California might have had to deal with a worrying trend that cropped up in the aftermath of Hurricane Helene: politicized disaster aid.
When the storm barreled through, it was right before Election Day, and Republican officials like Donald Trump and JD Vance didn’t hesitate to spread false claims about the nature of the government’s disaster response.
Here’s reporting from Julia Musto and Kelly Rissman on this troubling phenomenon.
Trump, Vance continue to push debunked claim of FEMA money going to migrants
How Trump and his allies spread false claims about FEMA and Hurricane Helene relief
Why wasn’t there a tsunami? Meteorologist explains
02:00 , Josh MarcusResidents across California and the Pacific Northwest were alarmed on Thursday with a tsunami warning after a magnitude 7.0 earthquake occured off the coast of Northern California.
The warning, however, was quickly dropped. So what happened?
Meteorologist Matthew Cappucci had a helpful explanation why for MyRadar Weather.
Why were tsunami warnings dropped? And what does this say about the broader seismology of the area? @MatthewCappucci explains. pic.twitter.com/txlCpvaXaj
— MyRadar Weather (@MyRadarWX) December 5, 2024
Life returns to normal in San Francisco
03:00 , Josh MarcusAfter a tsunami warning briefly put the city on edge, life in San Francisco is back to normal.
During a visit from one of our reporters to San Francisco’s Baker Beach on Thursday afternoon, the dogwalkers were walking, the fishermen were fishing, and there were few obvious signs there had been the chance of a one-two punch natural disaster on the horizon earlier in the day.
How San Francisco scrambled to prepare for a tsunami that never came
03:23 , Sonal HayatAs their phones blew up with disaster warnings, some Bay Area residents ran for the hills – while others faced death with a shrug. Io Dodds reports on the fear and the farce of the great tsunami that wasn’t
‘You are in danger!’ How San Francisco scrambled to meet a tsunami that never came
Sacramento man describes moment California earthquake hit
04:30 , Josh MarcusThings began feeling strange for Sacramento man Gabriel Porras when a 7.0 earthquake struck off the coast of Northern California earlier today.
He noticed the quake when his sixth-floor office began shaking.
“You feel like you’re kind of rotating in a circle with these new buildings with the dampeners,” he told ABC 10. “You can stand still and kind of feel yourself wobbling around. It wasn’t anything too intense.”
Looking down to lower floors, he saw people self-evacuating from nearby buildings.
“There seemed to be a lot of commotion at the ground level,” he said.
ICYMI: Tsunami warning for 5 million people lifted after 7.0-magnitude quake off California coast
06:00 , Josh MarcusA tsunami warning affecting more than 5 million people has been lifted after a major earthquake rocked Northern California.
The U.S. Geological Survey reported the tremor, with a magnitude of 7.0, hit just over 60 miles to the west-southwest of Ferndale. There were more than 30 aftershocks after the initial quake.
Residents along the coast were urged to move to higher ground after the tsunami warning was issued by the National Weather Service for parts of the California and Oregon coasts.
The service has now canceled the tsunami warning. “No tsunami danger presently exists for this area,” the agency confirmed on social media.
Julia Musto and Rhian Lubin report.
Tsunami warning for 5 million people lifted after 7.0-quake off California coast
Local officials reminder Californians that tsunami alert was no ‘false alarm'
07:30 , Josh MarcusA tsunami may not have hit California on Thursday, but people should still take such alarms seriously, accoridng to local officials.
“We want to make sure that folks don’t classify today as a false alarm,” said Justin Schorr, a rescue captain with the San Francisco Fire Department, told KQED. “The alert issued today was the highest level of tsunami warning that we have. If we weren’t prepared today to evacuate inland or to higher ground, this gives us a great opportunity to be prepared for next time.”
California spared major damage in earthquake, but Victorian-stile inn loses its door
09:00 , Josh MarcusMany California communities were spared any serious damage in today’s earthquake, but the town of Ferndale, near the quake’s offshore epicenter, was not so lucky.
The quake broke glass and knocked a door off the Victorian Inn, built in 1986.
Here’s the situation at the Victorian Inn. Built in 1986, damage to the doors and the bar. #ferndaleca #earthquake pic.twitter.com/4coor9z2La
— Caroline Titus (@caroline95536) December 5, 2024
Homes also reportedly came off their foundation in the Eel River Valley of Humboldt.
The State is sending immediate assistance to Humboldt & Del Norte Counties to assist with emergency operations.
— Mike McGuire (@ilike_mike) December 5, 2024
There are reports of some homes that have come off of foundations in the greater Eel River Valley region of Humboldt.
Approx 10k customers are currently without power…
‘Surprisingly little’ structural damage in California town near earthquake epicenter
10:00 , Josh MarcusLocal officials near Eureka, California, have been pleasantly surprised by minimal structural damage in the area, despite being near the epicenter of an offshore 7.0 magnitude earthquake that struck on Thursday.
Even in areas like Humboldt County’s Eel River Valley, which sustained some structural issues, Sheriff William Honsal told North Coast Journal roads remain passable.
In Ferndale, some power lines fell and homes and business saw broken dishes, but otherwise there was “surprisingly little” structural damage, an emergency responder told the outlet.
In Rio Dell, the city’s water and wastewater systems appear functional, though a crack opened in Blue Slide Road and a local middle school reported a gas leak.
No damage has been reported in the city of Eureka itself, police chief Brian Stephens told the publication.
How one San Francisco resident rode out the tsunami warning with a hilltop view
11:30 , Io DoddsA San Francisco software developer who climbed a hill to livestream the potential tsunami on Thursday says he has "mixed feelings" about its failure to show up.
"We were happy that there was no destruction or injuries or anything, but also we kind of wanted to see a little action," 32-year-old Danny Diekroeger told me.
Diekroeger, a former minor league professional baseball player who now runs a cryptocurrency start-up, was sitting on his patio at home in the Marina district when he felt the initial earthquake. Minutes later, he got the tsunami warning.
"I thought, wow, that’s pretty awesome. I’m always a fan of seeing Mother Nature doing powerful things. I wasn’t worried, but I was pretty interested," he said.
Diekroeger could see police officers and firefighters going around the neighbourhoods closer to the shore and telling residents to evacuate for at least an hour before the wave’s projected arrival, so he felt confident that people were being "taken care of" and had enough time to get to safety.
"I really like it when there’s other natural disasters and people take the time to live stream so everyone can see what is going on. I think they’re the best content because it’s usually just people right in the situation, raw and unfiltered."
After forwarding the alert to his family, Diekroeger walked with his dog Sky up to Fort Mason, a commanding hill overlooking the old military docks where American soldiers embarked for the Pacific campaign during the Second World War, and began to livestream.
He wasn’t alone. A crowd of people had gathered to watch the incoming tsunami, most of whom seemed to be evacuees from neighbourhoods close to the shore. The vibe was "calm" and "curious" as police officers further downhill continued to usher people upwards.
Eventually the warning was revoked, and the crowd dissipated. "It made for an interesting afternoon, but I’m glad there was no disruption. I’m glad everyone’s okay," said Diekroeger.
Not everyone had such a leisurely morning. One of Diekroeger’s friends was worried enough that he and his fiancee rapidly packed a go-bag and took an Uber to the southern San Francisco Hills – bringing along a portable generator and the Bitcoin wallet that contains their life savings.
Recap: The Great Northern California Tsunami That Wasn’t
13:30 , Josh MarcusA tsunami warning affecting more than 5 million people has been lifted after a major earthquake rocked Northern California.
The U.S. Geological Survey reported the tremor, with a magnitude of 7.0, hit just over 60 miles to the west-southwest of Ferndale. There were more than 30 aftershocks after the initial quake.
Residents along the coast were urged to move to higher ground after the tsunami warning was issued by the National Weather Service for parts of the California and Oregon coasts.
The service has now canceled the tsunami warning. “No tsunami danger presently exists for this area,” the agency confirmed on social media.
More details in our full story.
Tsunami warning for 5 million people lifted after 7.0-quake off California coast
National Weather Service’s Bay Area office says region was ‘lucky’ yesterday
14:19 , Julia Musto“We were fortunate yesterday, but don’t assume the next warning will play out the same way,” the National Weather Service’s Bay Area office said in a post on social media platform X.
“If you evacuated, you did the right thing. Tsunamis are rare, but can be extremely deadly,” it continued. “For perspective, roughly 230,000 people lost their lives in the 2004 Indian Ocean Tsunami, the deadliest natural disaster of the 21st century.”
A ‘non-destructive' tsunami wave was seen off the West Coast
14:45 , Julia MustoA non-destructive tsunami wave was observed earlier today near Point Arena. This serves as a reminder that we do indeed have a fault capable of producing tsunamis in our vicinity. We don't deal with this often, but when we do it pays to know your zones! (see next post for link) pic.twitter.com/L3PUPu1wqM
— NWS Bay Area 🌉 (@NWSBayArea) December 6, 2024
Newsom issued emergency proclamation to support earthquake response
15:15 , Julia Musto“Today’s emergency proclamation will allow more resources to go where they are needed for emergency response to this morning’s earthquake,” California Governor Gavin Newsom said on Thursday. “I am grateful for the robust system our state has in place that worked as intended today and kept people safe and informed.”
Earlier today @CAgovernor issued an emergency proclamation to support response to Northern California earthquake. Learn More: https://t.co/p2pF9HBIGE pic.twitter.com/eVa0sQCHfN
— California Governor's Office of Emergency Services (@Cal_OES) December 5, 2024
Live in San Francisco? These are the city’s tsunami inundation zones
15:45 , Julia MustoThis time, the Tsunami Warning was cancelled. Next time, it might not be. Take it as a reminder to prepare. Coastal residents: Learn about San Francisco’s tsunami inundation zones, plan your evacuation routes out of the area, and stay ready. Learn more: https://t.co/rXx380PsCv pic.twitter.com/33OoVCxA8L
— San Francisco Department of Emergency Management (@SF_emergency) December 5, 2024
Photos show damage to stores from major quake
16:15 , Julia MustoHere’s what to do in an earthquake and tsunami warning
16:35 , Julia MustoMore than half a million West Coast residents received earthquake alerts
17:03 , Julia MustoRobert De Groot, with the U.S. Geological Survey, says ShakeAlert notifications were delivered as far north as central Oregon and as far south as Salinas, California.
He told NBC Los Angeles that more than half a million people received those messages.
Northern California earthquake shakes water in Devils Hole
18:00 , Julia MustoCalifornia’s Devils Hole, in Death Valley National Park, was shaken by the earthquake on Thursday.
The National Park Service says scientists are still evaluating potential impacts to the endangered Devils Hole Pupfish.
“In the short term, this is bad for the pupfish,” said National Park Service biologist Dr. Kevin Wilson. “A lot of pupfish food just sank deeper into the cave, most likely too deep for the fish to get to it. There were likely pupfish eggs on the shelf that were destroyed. But, in the long term, this type of reset is good for the pupfish. It cleaned off any decaying organic matter that could otherwise cause pockets of low oxygen.”
Earthquakes in California’s Mendocino Triple Junction region are relatively common
18:45 , Julia MustoEarthquakes are relatively common near the Mendocino triple junction. There have been >40 earthquakes of M6 or larger in the past century within 150 miles of the 12/5/2024 earthquake. Most recently, an M6.4 occurred in December 2022 and an M6.2 in December 2021. Read more at:… https://t.co/eXkRakgUMk pic.twitter.com/iB1U1etZCW
— USGS Earthquakes (@USGS_Quakes) December 5, 2024
There have been nearly 200 aftershocks since the 7.0 earthquake
19:11 , Julia MustoA USGS map showed nearly 200 aftershocks off the coast of Northern California following a magnitude 7.0 earthquake that led to a tsunami warning.
The strongest aftershock was a magnitude 4.7 about two minutes after the main earthquake hit late Thursday morning.