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Within Meteor Booms

How Florida Witnesses Traced a Fireball Boom

The 2015 northern Florida fireball showed how clustered witness reports can map where a meteor's strongest sonic boom reached the ground.

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On this page

  • What witnesses saw and heard
  • Where the strongest boom reports clustered
  • How investigators reconstructed the flight
Preview for How Florida Witnesses Traced a Fireball Boom

Introduction

The northern Florida fireball of 21 February 2015 is a useful case study in how an event that initially sounds mysterious can be reconstructed using hundreds of public observations. For many people, the defining experience was not the brilliant meteor itself but the delayed boom that rattled windows and shook homes. Those reports briefly prompted speculation about explosions or other unusual aerial activity, yet the pattern of eyewitness accounts ultimately helped investigators identify where the meteor ended its flight. Rather than being random anecdotes, the combined reports formed a geographical map that closely matched the fireball’s trajectory and the area where its strongest sonic boom reached the ground.[American Meteor Society]amsmeteors.orgAmerican Meteor Society Florida Fireball with BoomAmerican Meteor SocietyFlorida Fireball with Boom - American Meteor SocietyFebruary 22, 2015…Published: February 22, 2015

Florida Case illustration 1

What witnesses saw and heard

Shortly before 11 p.m. Eastern Time on 21 February 2015, residents across northern Florida and southern Georgia observed an exceptionally bright fireball crossing the night sky. Witnesses described a brilliant white or greenish streak, with some reporting that the landscape briefly lit up as though by lightning. The meteor remained visible for only a few seconds before disappearing.[American Meteor Society]amsmeteors.orgAmerican Meteor Society Florida Fireball with BoomAmerican Meteor SocietyFlorida Fireball with Boom - American Meteor SocietyFebruary 22, 2015…Published: February 22, 2015

The sound came later. Dozens of people reported hearing a powerful boom between several seconds and a few minutes after the flash, depending on their distance from the meteor’s terminal path. Typical descriptions included:

  • A cannon-like blast.
  • A distant explosion.
  • Windows rattling.
  • Houses briefly shaking.
  • Multiple booms rather than a single report.

The American Meteor Society (AMS) collected more than 230 eyewitness reports, with over 48 specifically describing delayed sonic effects. Individual accounts from Starke, Sanderson and Lake City consistently mentioned shaking buildings and loud explosive noises rather than continuous aircraft sounds.[American Meteor Society]amsmeteors.orgAmerican Meteor Society Florida Fireball with BoomAmerican Meteor SocietyFlorida Fireball with Boom - American Meteor SocietyFebruary 22, 2015…Published: February 22, 2015

2:37

'Fireball' Seen Shooting Across Southeast Sky Is Confirmed Meteor

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Where the strongest boom reports clustered

The most revealing feature of the event was not simply the number of reports but their geographical distribution.

Using the submitted observations, the AMS produced separate maps showing visual sightings and delayed sonic-boom reports. While people across a broad region saw the meteor, reports of the strongest pressure wave were concentrated much more tightly near the end of the meteor’s atmospheric flight. Many of the loudest house-shaking reports came from the Lake City area, with additional reports extending towards western Jacksonville.[American Meteor Society]amsmeteors.orgAmerican Meteor Society Florida Fireball with BoomAmerican Meteor SocietyFlorida Fireball with Boom - American Meteor SocietyFebruary 22, 2015…Published: February 22, 2015

This clustering reflected a well-known property of meteor-generated shock waves. The loudest booms generally originate near the final stages of flight, where the meteoroid has descended to lower altitude and often fragments. Instead of being spread evenly beneath the entire visible path, the strongest pressure waves tend to reach the ground in a more focused region.

In Florida, that meant the pattern of delayed boom reports effectively highlighted the meteor’s terminal section even before detailed instrumental analysis was completed. The witness distribution therefore became evidence rather than merely anecdote.[American Meteor Society]amsmeteors.orgAmerican Meteor Society Florida Fireball with BoomAmerican Meteor SocietyFlorida Fireball with Boom - American Meteor SocietyFebruary 22, 2015…Published: February 22, 2015

Florida Case illustration 2

How investigators reconstructed the flight

The investigation combined two complementary sources of information.

First, hundreds of eyewitness reports allowed the AMS to estimate the meteor’s apparent track across the sky. Those reports indicated that the object travelled from the south-west towards the north-east, ending roughly 30 miles (about 48 kilometres) west of Jacksonville.[American Meteor Society]amsmeteors.orgAmerican Meteor Society Florida Fireball with BoomAmerican Meteor SocietyFlorida Fireball with Boom - American Meteor SocietyFebruary 22, 2015…Published: February 22, 2015

Second, NASA’s Sky Sentinel all-sky camera network independently recorded the event from two observing stations in Melbourne, Florida. The camera-based triangulation broadly agreed with the witness-derived trajectory, providing confidence that the public reports had accurately captured the meteor’s path. NASA estimated the object was roughly one foot (around 30 centimetres) across, weighed about 100 pounds (45 kilograms), travelled at approximately 40,000 miles per hour (64,000 km/h), and burned up before reaching the ground.[NASA]nasa.govFireball over Jacksonville, Florida on Feb. 21Fireball over Jacksonville, Florida on Feb. 21 - NASA…

The close agreement between instrumental observations and citizen reports demonstrated that large numbers of independent eyewitness accounts can provide surprisingly reliable information when analysed collectively rather than individually.[American Meteor Society]amsmeteors.orgAmerican Meteor Society Florida Fireball with BoomAmerican Meteor SocietyFlorida Fireball with Boom - American Meteor SocietyFebruary 22, 2015…Published: February 22, 2015

7-ton meteor streaks across the sky over multiple states, causing loud boom

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Blue-Green Fireball Lights Up Florida Sky | Feb. 2 Meteor Caught on Camera

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Why this case matters for reports of mysterious aerial booms

The Florida event illustrates why meteor-generated sonic booms are sometimes mistaken for unexplained aerial phenomena.

Many residents never saw the meteor itself. They experienced only a sudden explosion-like noise, vibrating windows or a brief shaking of their homes. Without the earlier visual cue, those sounds could easily be interpreted as industrial explosions, military aircraft or something more mysterious.

What distinguished this case was the density of reporting. Instead of isolated accounts, investigators received hundreds of independent observations that could be compared geographically. Visual reports defined the meteor’s path, while delayed boom reports identified where the strongest shock wave reached the surface. Together they produced a coherent reconstruction that matched instrumental recordings rather than leaving the event unexplained.[American Meteor Society]amsmeteors.orgAmerican Meteor Society Florida Fireball with BoomAmerican Meteor SocietyFlorida Fireball with Boom - American Meteor SocietyFebruary 22, 2015…Published: February 22, 2015

The Florida fireball therefore remains an instructive example of how organised citizen reporting can transform what initially appears to be an unexplained loud aerial event into a well-documented meteor case. It demonstrates that the timing and location of delayed sonic booms are not random but can provide valuable clues to a fireball’s final atmospheric flight when many independent observations are analysed together.[American Meteor Society]amsmeteors.orgAmerican Meteor Society Florida Fireball with BoomAmerican Meteor SocietyFlorida Fireball with Boom - American Meteor SocietyFebruary 22, 2015…Published: February 22, 2015

Florida Case illustration 3

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Endnotes

1. Source: nasa.gov
Title: Fireball over Jacksonville, Florida on Feb. 21
Link:https://www.nasa.gov/blogs/watch-the-skies/2015/02/23/fireball-over-jacksonville-florida-on-feb-21/

Source snippet

Fireball over Jacksonville, Florida on Feb. 21 - NASA...

2. Source: ntrs.nasa.gov
Link:https://ntrs.nasa.gov/citations/20160010197

Source snippet

Weather Radar Data in 2015 and 2016 (To Date) - NASA Technical Reports Server (NTRS)August 7, 2016 — NTRS NTRS - NASA TECHNICAL REPORTS S...

Published: August 7, 2016

3. Source: ares.jsc.nasa.gov
Title: osceola florida
Link:https://ares.jsc.nasa.gov/meteorite-falls/events/osceola-florida

Source snippet

Meteorite Falls | Osceola, FloridaJanuary 24, 2016 — OSCEOLA, FLORIDA OSCEOLA, FLORIDA OSCEOLA, FLORIDA DATE/TIME 1/24/2016 @ 15:25 UTC...

Published: January 24, 2016

4. Source: nasa.gov
Title: Watch the Skies
Link:https://www.nasa.gov/blogs/watch-the-skies/2015/page/3/

5. Source: nasa.gov
Title: Watch the Skies
Link:https://www.nasa.gov/blogs/watch-the-skies/2015/02

6. Source: amsmeteors.org
Title: American Meteor Society Florida Fireball with Boom
Link:https://www.amsmeteors.org/2015/02/florida-fireball-with-boom/

Source snippet

American Meteor SocietyFlorida Fireball with Boom - American Meteor SocietyFebruary 22, 2015...

Published: February 22, 2015

7. Source: amsmeteors.org
Link:https://www.amsmeteors.org/2016/11/fireball-over-florida/

Source snippet

Fireball over Florida - American Meteor SocietyNovember 23, 2016 — 150 reports so far about of a fireball event over seen over Florida on...

Published: November 23, 2016

9. Source: amsmeteors.org
Title: major daylight fireball over southeastern united states january 24th 2016
Link:https://www.amsmeteors.org/2016/01/major-daylight-fireball-over-southeastern-united-states-january-24th-2016/

Source snippet

Major Daylight Fireball Over Southeastern US – January, 24th 2016 - American Meteor SocietyJanuary 25, 2016 — American Meteor Society fou...

Published: January 25, 2016

10. Source: amsmeteors.org
Link:https://www.amsmeteors.org/members/imo_view/event/2015/3899

Source snippet

Fireball eventDecember 10, 2015 — EVENTS IN 2015 3899-2015 KML * * * AMS received 9 reports about a fireball seen over FL and AL on Thurs...

Published: December 10, 2015

11. Source: fireball.amsmeteors.org
Title: 5 WITNESS REPORTS * * * a -Alastair F. Leve
Link:https://fireball.amsmeteors.org/imo_view/event/2015/3530

Source snippet

eventNovember 19, 2015 — EVENTS IN 20153530-2015 * * * We received 5 reports about a fireball seen over MO, TN, AL, MS and GA on Thursday...

Published: November 19, 2015

12. Source: fireball.amsmeteors.org
Link:https://fireball.amsmeteors.org/imo_view/event/2015/2933

13. Source: fireball.amsmeteors.org
Link:https://fireball.amsmeteors.org/members/imo_view/event/2015/1420

15. Source: fireball.amsmeteors.org
Link:https://fireball.amsmeteors.org/members/imo_view/report/63864

16. Source: fireballs.amsmeteors.org
Link:https://fireballs.amsmeteors.org/members/imo_view/report/63929

17. Source: amsmeteors.org
Title: Fireball event
Link:https://www.amsmeteors.org/members/imo_view/event/2015/234

18. Source: amsmeteors.org
Title: Fireball Logs
Link:https://www.amsmeteors.org/fireballs/fireball-report/page/5/?fireball_id=21059

19. Source: amsmeteors.org
Title: Fireball Sightings
Link:https://amsmeteors.org/category/fireball-sightings/page/5/

20. Source: amsmeteors.org
Title: Fireball Logs
Link:https://www.amsmeteors.org/fireballs/fireball-report/page/5/?fireball_id=21697

21. Source: amsmeteors.org
Title: Fireball Logs
Link:https://amsmeteors.org/fireballs/fireball-report/

22. Source: fireball.amsmeteors.org
Title: browse reports
Link:https://fireball.amsmeteors.org/members/imo_view/browse_reports?country=US&month=1&page=6&search_by_month=1&year=2015

23. Source: amsmeteors.org
Title: Search Results american
Link:https://amsmeteors.org/page/3/?s=american

24. Source: fireball.amsmeteors.org
Title: browse reports
Link:https://fireball.amsmeteors.org/imo_view/browse_reports/?country=US%7CUnited+States&end_date=2015-01-27%3A59%3A59&event=&event_id=&event_year=&page=11&start_date=2014-12-01%3A00%3A00&state=

25. Source: fireball.amsmeteors.org
Title: browse reports
Link:https://fireball.amsmeteors.org/members/imo_view/browse_reports?country=US&month=1&page=3&search_by_month=1&year=2015

26. Source: fireball.amsmeteors.org
Title: browse reports
Link:https://fireball.amsmeteors.org/imo_view/browse_reports?month=1&page=2&search_by_month=1&year=2015

27. Source: fireball.amsmeteors.org
Title: browse reports
Link:https://fireball.amsmeteors.org/members/imo_view/browse_reports?country=US&month=4&search_by_month=1&state=FL&year=2015

Additional References

28. Source: youtube.com
Title: Blue-Green Fireball Lights Up Florida Sky | Feb. 2 Meteor Caught on Camera
Link:https://www.youtube.com/watch?v=7xkJaZM_DwQ

Source snippet

7-ton meteor streaks across the sky over multiple states, causing loud boom...

29. Source: youtube.com
Title: 7-ton meteor streaks across the sky over multiple states, causing loud boom
Link:https://www.youtube.com/watch?v=p0s-SUCQx0c

Source snippet

Loud 'boom' reported across northern Utah most likely a meteor...

30. Source: youtube.com
Title: ‘Fireball’ Seen Shooting Across Southeast Sky Is Confirmed Meteor
Link:https://www.youtube.com/watch?v=es2bU-bFqIQ

Source snippet

Blue-Green Fireball Lights Up Florida Sky | Feb. 2 Meteor Caught on Camera...

31. Source: youtube.com
Title: Fireball streak captured on camera in Southeast U.S
Link:https://www.youtube.com/watch?v=1cOfkGDoryY

Source snippet

'Fireball' Seen Shooting Across Southeast Sky Is Confirmed Meteor...

32. Source: nuforc.org
Link:https://nuforc.org/sighting/?id=116417