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The Brief

The most important stories for you to know today
  • The history of the alarm warning you of a quake
    Paul Nelson, who runs Eagle Mining Co., inspects for structural damage inside a mine for tourists after an earthquake struck near Julian, California, on April 14, 2025. A shallow 5.2 magnitude quake hit southern California on Monday, US geologists said. The tremor was centered 2.5 miles (four kilometers) south of Julian, which is around 20 miles from the US border with Mexico, and was eight miles deep, according to data from the US Geological Survey.
    Paul Nelson looks for structural damage inside a mine for tourists after an earthquake struck near Julian this month.

    Topline:

    If you live anywhere along the West Coast, you have at some point in the last few years heard the piercing sound of ShakeAlert.

    Why now: Earlier in April, a 5.2 magnitude quake struck San Diego County. The alert was sent to phones as far away as Los Angeles to warn people of the coming shaking.

    Read on ... for a look under the hood of ShakeAlert, including the quake that started development of an early earthquake warning system.

    If you live anywhere along the West Coast, you have at some point in the last few years heard the piercing sound of ShakeAlert. The United States Geological Survey manages the earthquake early warning system for the more than 50 million people living in California, Oregon and Washington — vast swaths of the country known for frequent tremors.

    Earlier this month, a 5.2 magnitude quake near San Diego was big enough to make national headlines. Millions of Southern California residents were warned seconds before it struck via the ShakeAlert app — and that too made the news.

    Robert de Groot leads the operations of the ShakeAlert system. You can find him often in the media evangelizing about the virtues of the system, but nothing makes a stronger case for its usefulness than during earthquakes themselves.

    Listen 3:44
    Behind the West Coast’s most widely used early earthquake alert system

    “They're actually experiencing earthquake early warning in real time, and it gives them a chance to sort of get a sense of how it works and what to expect,” de Groot says.

    'Be ready for the shaking'

    De Groot says the idea for an early warning system was conceived accidentally during the 1989 Loma Prieta earthquake. The 6.9 magnitude shaker was centered in Santa Cruz and first responders were able to radio up to Oakland as they experienced it. According to de Groot, they told their colleagues to “be ready for the shaking” mere seconds before it happened.

    The earthquake damaged and caused the collapse of a bridge in Oakland, killing 40 people. Learning about the earthquake even just seconds before allowed emergency services to immediately spring into action.

    “The idea is that the information they were sending to their colleagues in Oakland from Santa Cruz was traveling faster than the seismic waves,” De Groot says.

    That’s ShakeAlert in a nutshell. Development began in 2006, and the first public alerts were delivered in California 13 years later. It was expanded to Oregon and Washington in 2021. The system now has over 50 million people in its coverage area, but not every earthquake is cause for alerts for all of those people. De Groot says when it came to the 5.2 magnitude quake on April 14, a notification was sent “ on the order of 7 million ... delivered to phones to those people who needed the alerts the most.”

    And it’s more than just personal alerts. ShakeAlert also notifies trains when to slow down, opens firehouse doors automatically and alerts classrooms en masse about a coming quake.

    In the span of a single second after a quake hits, ShakeAlert now collects enough data to “generate those very first estimates of the earthquake’s location, size and potential shaking around that earthquake.”

    They then ship off all that information to partners, like FEMA’s Wireless Emergency Alert system, which then decides where warnings will be delivered. De Groot says they use cell towers to “ essentially blast that information out to everybody who is in that footprint.”

    Improving earthquake early warning

    But just how do they gather so much data in so little time? De Groot says a network of sensors does the heavy lifting. The network is growing, getting a major upgrade by the end of this year.

    “Imagine about 3,000 sensors spread across three states,” De Groot says. “They’re measuring both how fast the ground is moving and how far it’s moving.”

    Notify, notify and notify

    De Groot says the system is designed to cut through all the other information flooding people’s personal devices to make it so that simply hearing the sound is enough warning to prepare.

    “If someone sits around for three or four seconds trying to figure out what they're getting on their phone, those are three seconds that are wasted,” he says.

    And De Groot adds it’s actually not a bad idea to get more than one earthquake alert on your phone. There’s UC Berkeley’s MyShake, or Android phones’ emergency alerts, which are sent out by Google. “One thing that we're very careful about ... is that we don't want those alerts to contradict one another,” he says.

    To do that, De Groot says, they make sure the message from the alerts is always simple: “Primarily drop cover and hold on, and protecting yourself. That's critical.”

    And the ShakeAlert sensors don’t just stop at first detection, but they monitor seismic activity as it grows — and revise the information they share with partners accordingly.

    Don’t tell me what I don’t want to know

    De Groot says he and his team have also gotten the feedback that not everyone wants to be burdened with the knowledge of a coming disaster. But for the ShakeAlert team, the greater good of making sure people are prepared outweighs the fear it might generate.

    His team always welcomes feedback — good or bad. Because they help make the system better.

    To provide yours, simply go to the ShakeAlert app and fill out a “Did You Feel It” report.

    “We want to optimize public safety. It's a critical piece for us," he says. "And so the more we can learn from people, the better."

  • Dodgers fans grapple with loyalty ahead of it
    A man with medium skin tone, wearing a blue Dodgers shirt, speaks into a microphone standing behind a podium next to others holding up signs that read "No repeat to White House. Legalization for all" and "Stand with you Dodger community." They all stand in front of a blue sign that reads "Welcome to Dodger Stadium."
    Jorge "Coqui" H. Rodriguez speaks at a press conference outside Dodger Stadium on Wednesady to demand the Dodgers not visit the White House following their 2025 World Series win.

    Topline:

    Less than 24 hours before season opener, longtime Dodgers fans demand the team divest from immigration detention centers and decline the White House visit.

    More details: More than 30 people joined Richard Santillan on Wednesday morning for a press conference held near 1000 Vin Scully Drive to convey a message directly to the team. “We are demanding that the Dodgers stop participating in funding of inhumane treatment of families and do not go to the White House to celebrate with the criminal in chief,” Evelyn Escatiola told the crowd. “Together we have the power to make a change.”

    The backstory: The team’s 2025’s visit to the White House drew ire from the largely Latino fan base, citing the Trump administration’s ongoing attacks on immigrants. In June, the team came under further scrutiny when rumors swirled online that federal immigration agents were using the stadium’s parking, which immigration authorities later denied in statements posted on social media accounts.

    Read on ... for more on how some fans are feeling leading up to Opening Day.

    This story first appeared on The LA Local.

    Since 1977, Richard Santillan has been to every Opening Day game at Dodger Stadium. 

    “The tradition goes from my father, to me, to my children and grandchildren. Some of my best memories are with my father and children here at Dodger Stadium,” Santillan told The LA Local, smiling under the shade of palm trees near the entrance to the ballpark Wednesday morning. He was there to protest the team less than 24 hours before Opening Day.

    Santillan, like countless other loyal Dodgers fans, is grappling with his fan identity over the team’s decision to accept an invitation to the White House and owner Mark Walter’s ties to ICE detention facilities.

    More than 30 people joined Santillan on Wednesday morning for a press conference held near 1000 Vin Scully Drive to convey a message directly to the team. 

    “We are demanding the Dodgers stop participating in funding of inhumane treatment of families and do not go to the White House to celebrate with the criminal in chief,” Evelyn Escatiola told the crowd. “Together, we have the power to make a change.”

    Escatiola, a former dean of East Los Angeles College and longtime community organizer, urged fans to flex their economic power by “letting the Dodgers know that we do not support repression.”

    Jorge “Coqui” Rodriguez, a lifelong Dodgers fan, spoke to the crowd and called on Dodgers ownership to divest from immigration detention centers owned and operated by GEO Group and CoreCivic.

    A man with medium skin tone, wearing a blue Dodgers t-shirt, speaks into a microphone behind a podium.
    Jorge Coqui H Rodriguez speaks at a press conference outside Dodger Stadium on March 25, 2026, to demand the Dodgers not to visit the White House following their 2025 World Series win.
    (
    J.W. Hendricks
    /
    The LA Local
    )

    In a phone interview a day before the protest, Rodriguez told The LA Local he did not want the Dodgers using his “cheve” or beer money to fund detention centers. 

    “They can’t take our parking money, our cacahuate money, our cheve money, our Dodger Dog money and invest those funds into corporations that are imprisoning people. It’s wrong,” Rodriguez said. 

    Rodriguez considers the Dodgers one of the most racially diverse teams and said the players need to support fans at a time when heightened immigration enforcement has become more common across L.A.

    The team’s 2025’s visit to the White House drew ire from the largely Latino fan base, citing the Trump administration’s ongoing attacks on immigrants. 

    In June, the team came under further scrutiny when rumors swirled online that federal immigration agents were using the stadium’s parking, which immigration authorities later denied in statements posted on social media accounts.

    The team again came under fire after not releasing a statement on the impacts of ICE raids on its mostly Latino fan base at the height of immigration enforcement last summer. The team later agreed to invest $1 million to support families affected by immigration enforcement.

    When he learned the Dodgers were pledging only $1 million to families in need, Rodriguez called the amount a  “slap in the face.” 

    “These guys just bought the Lakers for billions of dollars and they give a million dollars to fight for legal services? That’s a joke,” Rodriguez said. “They need to have a moral backbone and not be investing in those companies.”

    According to reporting from the Los Angeles Times, former Dodgers pitcher Clayton Kershawsaid last week that he is looking forward to the trip.

    “I went when President [Joe] Biden was in office. I’m going to go when President [Donald] Trump is in office,” Kershaw said. “To me, it’s just about getting to go to the White House. You don’t get that opportunity every day, so I’m excited to go.”

    The Dodgers have yet to announce when their planned visit will take place. 

    Santillan sometimes laments his decision to give up his season tickets in protest of the team. His connection to the stadium and the memories he has made there with family and friends will last a lifetime, he said. On Thursday, he will uphold his tradition and be there for the first pitch of the season, but with a heavy heart.

    “It’s a family tradition, but the Dodgers have a lot of work to do,” he said.

  • Sponsored message
  • Warmer weather has caused more biting flies
    A zoomed in shot of a fuzzy black fly with some white spots.
    The warmer weather and high water flow are causing an early outbreak of black flies in the San Gabriel Valley.

    Topline:

    The warmer weather and high water flow are causing an early outbreak of black flies in the San Gabriel Valley, according to officials.

    What are black flies? Black flies are tiny, pesky insects that often get mistaken for mosquitoes. The biting flies breed near foothill communities like Altadena, Azusa, San Dimas and Glendora. They also thrive near flowing water.

    What you need to know: Black flies fly in large numbers and long distances. When they bite both humans and pets, they aim around the eyes and the neck. While the bites can be painful, they don’t transmit diseases in L.A. County.

    A population spike: Anais Medina Diaz, director of communications at the SGV Mosquito and Vector Control District, told LAist that at this time last year, surveillance traps had single-digit counts of adult black flies, but this year those traps are collecting counts above 500.

    So, why is the population growing? Diaz said the surge is unusual for this time of year.

    “We are experiencing them now because of the warmer temperatures we've been having,” Diaz said. “And of course, all the water that's going down through the river, we have a high flow of water that is not typical for this time of year.”

    What officials are doing: Officials say teams are identifying and treating public sources where black flies can thrive, but that many of these sites are influenced by natural or infrastructure conditions outside their control.

    How to protect yourself: Black flies can be hard to avoid outside in dense vegetation, but you can reduce the chance of a bite by:

    • Wearing loose-fitted clothing that covers the entire body. 
    • Wearing a hat with netting on top. 
    • Spraying on repellent, but check the label. For a repellent to be effective, it needs to have at least 15% DEET, the only active ingredient that works against black flies.
    • Turning off any water features like fountains for at least 24 hours, especially in foothill communities.

    See an uptick in black flies in your area? Here's how to report it

    SGV Mosquito and Vector Control District
    Submit a tip here
    You can also send a tip to district@sgvmosquito.org
    (626) 814-9466

    Greater Los Angeles Vector Control District
    Submit a service request here
    You can also send a service request to info@GLAmosquito.org
    (562) 944-9656

    Orange County Mosquito and Vector Control
    Submit a report here
    You can also send a report to ocvcd@ocvector.org
    (714) 971-2421 or (949) 654-2421

  • Rent hike to blame
    A black and brown dog lays down on a brown sofa on the foreground. In the background, a man wearing a plaid shirt sits.
    Jeremy Kaplan and Florence at READ Books in Eagle Rock.
    Topline:
    Local favorite mom and pop shop READ Books in Eagle Rock is facing displacement due to a steep rent hike. The owners say they’re just one of several small businesses along Eagle Rock Boulevard struggling to keep up with lease increases.

    The backstory: Over the past 19 years, many in the neighborhood have come to love READ Books for its eclectic collection of used titles and their shop dog Florence.

    What happened? The building where Kaplan and his wife Debbie rent was recently sold and the rent increased by more than 130% to $2,805 a month, Kaplan said. He told LAist it was an increase his small business simply could not absorb.

    What's next? While he looks for a new spot, Kaplan says he’s forming a coalition of local businesses and activist groups to see what can be done to help other small businesses facing similar displacement. He wants to address the displacement issue for businesses like his, which have made Eagle Rock the distinctive neighborhood that it is today.

    Read on... for what small businesses can do.

    A local favorite mom-and-pop bookshop in Eagle Rock is facing displacement due to a steep rent hike. The owners say theirs is just one of several small businesses along Eagle Rock Boulevard struggling to keep up with lease increases.

    Over the past 19 years, many in the neighborhood have come to love READ Books for its eclectic collection of used titles and shop dog Florence.

    Co-owner Jeremy Kaplan said it’s been a delight to grow with the community over the years.

    “Like seeing kids come back in, who were in grade school and now they’re in college,” Kaplan said.

    But the building where Kaplan and wife Debbie rent was recently sold, and the rent increased by more than 130% to $2,805 a month, Kaplan said. He told LAist it was an increase his small business simply could not absorb.

    Kaplan said he originally was given 30 days notice of the rent increase. After some research, assistance from Councilmember Ysabel Jurado’s office and some pro-bono legal help, Kaplan said he pushed back and got the 90-day notice he’s afforded by state law.

    California Senate Bill 1103 requires landlords to give businesses with five or less employees 90 days’ notice for rent increases exceeding 10%, among other protections.

    Systems Real Estate, the property management company, did not immediately respond to LAist’s request for comment.

    What can small businesses do? 

    Nadia Segura, directing attorney of the Small Business Program at pro bono legal aid non-profit Bet Tzedek said California law does not currently allow for rent control for commercial tenancies.

    Outside of the protections under SB 1103, Segura said small businesses like READ Books don’t have much other recourse. And even then, commercial landlords are not required to inform their tenants of their protections under the law.

    “There’s still a lot of people that don’t know about SB 1103. And then it’s very sad that they tell them they have these rent increases and within a month they have to leave,” Segura said.

    She said her group is seeing steep rent hikes like this for commercial tenants across the city.

    “We are seeing this even more with the World Cup coming up, the Olympics coming up. And I will say it was very sad to see that also after the wildfires,” Segura said.

    Part of Bet Tzedek’s ongoing work is to advocate for small businesses, working with landlords who are increasing rents to see if they are willing to give business owners longer leases that lock in rents.

    What’s next 

    After READ Books posted about their situation on social media, commenters chimed in to express their outrage and love for the little shop.

    While he looks for a new spot, Kaplan says he’s forming a coalition of local businesses and activist groups to see what can be done to help other small businesses facing similar displacement. He wants to address the displacement issue for businesses like his, which have made Eagle Rock the distinctive neighborhood that it is today.

    Owl Talk, a longtime Eagle Rock staple selling clothing and accessories in a unit in the same building as READ Books, is facing a “more than double” rent increase, according to a post on their Instagram account.

    Kaplan said he’s been in touch with the office of state Assemblywoman Jessica Caloza and wants to explore the possibility of introducing legislation to set up protections for small businesses like his, including rent-control measures or a vacancy tax for landlords. Kaplan said he also reached out to the office of state Sen. Maria Durazo.

    By his count, Kaplan said there are about a dozen businesses within surrounding blocks that are at risk of closing their doors or have shuttered due to rent increases or other struggles.

    When READ Books was founded during the Great Recession, Kaplan said he knew it was a longshot to open a bookstore at the same time so many were struggling to stay in business.

    “It was kind of interesting to be doing something that neighborhoods needed. That was important to me growing up, that was important to my children, that was important to my wife growing up,” Kaplan said.

    “And then somebody comes in and says, ‘We’re gonna over double your rent.”

  • Ballots to be sent out
    A person sits in the carriage of a crane and places solar panels atop a post. The crane is white, and the number 400 is printed on the carriage in red.
    A field team member of the Bureau of Street Lighting installs a solar-powered light in Filipinotown.

    Topline:

    The Los Angeles City Council approved a plan in a 13-1 vote on Tuesday to send ballots to more than half a million property owners asking if they are willing to pay more per year to fortify the city’s streetlight repair budget, most of which has essentially been frozen since the 1990s. The item still requires L.A. Mayor Karen Bass’ signature, but her office confirmed to LAist on Wednesday that she’ll approve it.

    Frozen budget: Most of the city’s Bureau of Street Lighting budget comes from an assessment that people who own property illuminated by lights pay on their county property tax bill. The amount people pay depends on the kind of property they own and how much they benefit from lighting. A typical single-family home currently pays $53 annually, and in total, the assessments bring in about $45 million annually for the city to repair and maintain streetlights. Changing the amount the Bureau of Street Lighting gets from the assessment requires a vote among property owners who benefit from the lights.

    Ballots: L.A. City Council’s vote gives city staff the green light to prepare and send out those ballots. Miguel Sangalang, who oversees the bureau, said at a committee meeting earlier this month that he expects to send out ballots by April 17. Notices about the ballots will be sent out prior to the ballots themselves.

    Near unanimous vote: L.A. City Councilmember Monica Rodriguez was the only “No” vote on Tuesday, saying she wanted to see a more current strategic plan for the bureau. Sangalang said the bureau developed a plan in 2022 that lays out how money will be spent. Councilmember Imelda Padilla was absent for the vote.

    Vote count: Votes will be weighted according to the assessment amount. Basically, the more you’re asked to pay yearly to maintain streetlights, the more your vote will count. Ballots received before June 2 will be tabulated by the L.A. City Clerk.

    How much more money: According to a report, the amount needed in assessments from property owners to meet the repair and maintenance needs of the city’s streetlighting in the next fiscal year is nearly $112 million.

    Use of the money: Sangalang said at a March 11 committee meeting that the extra funds would be used to double the number of staff to handle repairs and procure solar streetlights, which don’t face the threat of copper wire theft. That would all potentially reduce the time it takes to repair simple fixes down to a week. Currently, city residents wait for months to see broken streetlights repaired.The assessment would come with a three-year auditing mechanism.

    Topline:

    The Los Angeles City Council approved a plan in a 13-1 vote Tuesday to send ballots to more than a half-million property owners asking if they are willing to pay more per year to fortify the city’s streetlight repair budget, most of which essentially has been frozen since the 1990s. The item still requires L.A. Mayor Karen Bass’ signature, but her office confirmed to LAist on Wednesday that she’ll approve it.

    Frozen budget: Most of the city’s Bureau of Street Lighting budget comes from an assessment that people who own property illuminated by lights pay on their county property tax bill. The amount people pay depends on the kind of property they own and how much they benefit from lighting. A typical single-family home currently pays $53 annually, and in total, the assessments bring in about $45 million annually for the city to repair and maintain streetlights. Changing the amount the Bureau of Street Lighting gets from the assessment requires a vote among property owners who benefit from the lights.

    Ballots: L.A. City Council’s vote gives city staff the green light to prepare and send out those ballots. Miguel Sangalang, who oversees the bureau, said at a committee meeting earlier this month that he expects to send out ballots by April 17. Notices about the ballots will be sent out prior to the ballots themselves.

    Near unanimous vote: L.A. City Councilmember Monica Rodriguez was the only “No” vote Tuesday, saying she wanted to see a more current strategic plan for the bureau. Sangalang said the bureau developed a plan in 2022 that lays out how money will be spent. Councilmember Imelda Padilla was absent for the vote.

    Vote count: Votes will be weighted according to the assessment amount. Basically, the more you’re asked to pay yearly to maintain streetlights, the more your vote will count. Ballots received before June 2 will be tabulated by the L.A. City Clerk.

    How much more money: According to a report, the amount needed in assessments from property owners to meet the repair and maintenance needs of the city’s streetlighting in the next fiscal year is nearly $112 million.

    Use of the money: Sangalang said at a March 11 committee meeting that the extra funds would be used to double the number of staff to handle repairs and procure solar streetlights, which don’t face the threat of copper wire theft. That would all potentially reduce the time it takes to repair simple fixes down to a week. Currently, city residents wait for months to see broken streetlights repaired. The assessment would come with a three-year auditing mechanism.