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South Florida’s beachfront buildings found to be sinking faster than expected

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South Florida’s beachfront buildings found to be sinking faster than expected


Schematic illustrating potential scenario to explain the observed subsidence pattern. Credit: Earth and Space Science (2024). DOI: 10.1029/2024EA003852

A team of mechanical, architectural and environmental engineers, geoscientists, and geoinformation specialists affiliated with several institutions in the U.S. and Germany has found that many of the tall, heavy buildings along the coast of South Florida are sinking into the ground much faster than was expected.

In their study published in the journal Earth and Space Science, the group compared satellite images over several years to learn more about ongoing subsidence along multiple beachfronts.

Prior research has shown that many factors can lead to subsidence, in which the altitude of a given parcel of land declines. Natural causes include water movement, earthquakes and gravity. Manmade causes include the heaviness of the built environment, including large buildings, and activities including fracking and landscaping.

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In this new study, the researchers noted that the many tall buildings along many parts of the coast in South Florida appeared to be extremely heavy. They wondered if adding so much weight might be causing the ground beneath them to sink.

To find out, the researchers obtained precise satellite imagery for several of the most popular beaches in South Florida and compared 35 buildings standing on them over time. Modern satellite imagery is so precise it can detect changes in altitude of just a few centimeters. The researchers found that every one of the buildings they measured was sinking, ranging from 2 to 8 cm over the years 2016 to 2023, and that most of them were sinking faster than expected.

South Florida's beachfront buildings found to be sinking faster than expected
Averaged 2016–Oct 2023 LOS velocity for Golden Beach and Sunny Isles Beach North, using Sentinel-1 sensors and SARvey package. Credit: Earth and Space Science (2024). DOI: 10.1029/2024EA003852

The research team also found that there were differences in subsidence between beach areas. The worst, for example, was occurring on Sunny Isles Beach; after that was Surfside, site of the collapse of a 12-story building back in 2021. Miami Beach, they noted, was experiencing the least amount of subsidence.

Because of the building collapse three years ago, the researchers took a closer look at Surfside to find out if subsidence may have been a contributing cause and found no evidence. Even if the building had been sinking, they note, it should not have led to structural damage unless it was sinking unevenly, with one part of the ground under the building sinking faster than another.

They suggest more work is required to determine if that is happening to any of the buildings in South Florida, and if so, to warn their owners.

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More information:
Farzaneh Aziz Zanjani et al, InSAR Observations of Construction‐Induced Coastal Subsidence on Miami’s Barrier Islands, Florida, Earth and Space Science (2024). DOI: 10.1029/2024EA003852

© 2024 Science X Network

Citation:
South Florida’s beachfront buildings found to be sinking faster than expected (2024, December 19)
retrieved 19 December 2024
from https://phys.org/news/2024-12-south-florida-beachfront-faster.html

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Florida

Florida investigating AI role in mass shooting at university

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Florida investigating AI role in mass shooting at university


Florida on Tuesday announced a criminal probe into whether artificial intelligence played a role in a deadly mass shooting at a university in the US state.

The decision to launch an investigation came after prosecutors reviewed exchanges between OpenAI chatbot ChatGPT and the suspected gunman, who opened fire at Florida State University last year, according to state Attorney General James Uthmeier.

“If ChatGPT were a person, it would be facing charges for murder,” Uthmeier said.

Florida law allows anyone who assists or counsels someone in the commission of a crime to be treated as an “aider and abettor” bearing the same responsibility as the perpetrator, according to Uthmeier.

In exchanges with ChatGPT, the accused shooter sought advice on what type of gun and ammunition to use, as well as where and when on campus a lot of people would likely be found, the state attorney general said during a press briefing.

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“Last year’s mass shooting at Florida State University was a tragedy, but ChatGPT is not responsible for this terrible crime,” an OpenAI spokesperson said.



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Florida wildfire strands Amtrak passengers for over 24 hours

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Florida wildfire strands Amtrak passengers for over 24 hours


A massive wildfire in Putnam County in northern Florida left Amtrak passengers stranded on a train for more than 24 hours.

One train heading to New York City was forced to turn around, arriving back in Miami Monday night, including one passenger who said he had been on that train for about 38 hours.

He says he and other passengers were left uncertain about what was going on.

“Angry, confused, uncertain, in the dark,” said John Reardon.

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Reardon, who lives in New York City, says he boarded the train around 7 a.m. Sunday to go back home. He said around 3 p.m. Sunday, the train stopped near Jacksonville.

“Finally, after about 5 hours, they said we’re not going to New York, we’re going back to Miami,” Reardon said. “One stop at a time.”

Amtrak said for the safety of its passengers, the train couldn’t continue going north because of the fire.

“Amtrak sends a notification to the phone saying, ‘Hey, there’s an issue with the wildfire, it’s too close to the railway,’” said passenger Katrinia Wheeler.

Multiple crews are battling multiple fires in two Florida counties, leaving at least 3,000 acres burned. 

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“I saw that there was a lot of smoke coming from the woods, and then I saw the fire trucks and emergency services,” Wheeler said.

The train that left Miami at 7 a.m. on Sunday returned around 9 p.m. on Monday, leaving passengers frustrated.

Amtrak corporate says they made the decision out of safety for their customers and said customers would receive full refunds and vouchers.



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Florida Lottery Fantasy 5, Cash Pop results for April 19, 2026

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Florida Lottery Fantasy 5, Cash Pop results for April 19, 2026


The Florida Lottery offers several draw games for those hoping to win one of the available jackpots.

Here’s a look at the winning numbers for games played on Sunday, April 19, 2026.

Winning Fantasy 5 numbers from April 19 drawing

Midday: 06-09-19-34-35

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Evening: 08-09-12-25-31

Check Fantasy 5 payouts and previous drawings here.

Winning Cash Pop numbers from April 19 drawing

Morning: 03

Matinee: 08

Afternoon: 04

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Evening: 01

Late Night: 07

Check Cash Pop payouts and previous drawings here.

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Powerball, Mega Millions jackpots: What to know in case you win

Here’s what to know in case you win the Powerball or Mega Millions jackpot.

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Just the FAQs, USA TODAY

Winning Pick 2 numbers from April 19 drawing

Midday: 4-0, FB: 3

Evening: 0-6, FB: 6

Check Pick 2 payouts and previous drawings here.

Winning Pick 3 numbers from April 19 drawing

Midday: 2-9-1, FB: 3

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Evening: 3-7-0, FB: 6

Check Pick 3 payouts and previous drawings here.

Winning Pick 4 numbers from April 19 drawing

Midday: 9-7-8-0, FB: 3

Evening: 3-6-7-8, FB: 6

Check Pick 4 payouts and previous drawings here.

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Winning Pick 5 numbers from April 19 drawing

Midday: 3-9-3-5-1, FB: 3

Evening: 1-3-1-8-7, FB: 6

Check Pick 5 payouts and previous drawings here.

Where can you buy Florida Lottery tickets?

Tickets can be purchased in person at any authorized retailer throughout Florida, including gas stations, convenience stores and grocery stores. To find a retailer near you, go to Find Florida Lottery Retailers.

Feeling lucky? Explore the latest lottery news & results

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Are you a winner? Here’s how to claim your prize

  • Prizes of $599 or less: Claim at any authorized Florida Lottery retailer or Florida Lottery district office.
  • Prizes for $600 to $1 million: Must be claimed in person at any Florida Lottery district office for games that do not offer an annual payment option.
  • Prizes greater than $1 million and all prizes with an annual payment option: Must be claimed at Florida Lottery headquarters, except Mega Millions and Powerball prizes, which can be claimed at any Florida Lottery district office.

You also can claim your winnings by mail if the prize is $250,000 or less. Mail your ticket to the Florida Lottery with the required documentation.

Florida law requires public disclosure of winners

If you’re a winner, Florida law mandates the following information is public record:

  • Full name
  • City of residence
  • Game won
  • Date won
  • Amount won
  • Name and location of the retailer where the winning ticket was purchased.

When are the Florida Lottery drawings held?

  • Powerball: 10:59 p.m. Monday, Wednesday and Saturday.
  • Mega Millions: 11 p.m. Tuesday and Friday.
  • Florida Lotto: 11:15 p.m. Wednesday and Saturday.
  • Jackpot Triple Play: 11:15 p.m. Tuesday and Friday.
  • Fantasy 5: Daily at 1:05 p.m. and 11:15 p.m.
  • Cash Pop: Daily at 8:45 a.m., 11:45 a.m., 2:45 p.m., 6:45 p.m. and 11:45 p.m.
  • Pick 2, 3, 4, 5: Daily at 1:30 p.m. and 9:45 p.m.

This results page was generated automatically using information from TinBu and a template written and reviewed by a Florida digital producer. You can send feedback using this form.



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