Someone knowledgable please sonic boom- causing sesmic

[rzemanfl]

activity. Possible? This has to do with news reports now on in Florida.

[Billy Ruffian]

1. I'll try to go look up the news reports

but I really don't think it is possible.

I could understand sonic booms being mistaken for seismic activity (or vice versa)

[rzemanfl]

2. They are saying this registered two point something. n/t

[Trajan]

4. Unlikely .....

... that a sonic boom would/could/did cause 'seismic activity', as in stimulating the earth to move above and beyond a simple reflection of the boom's actual sound energy ....

That being said: EVERYTHING is affected to some degree .. your walls may shake ... your windows will rattle .... so of course the sound could be registered on seimsic measurement equipment ... but it would be NOTHING like a geological seismic event .... AKA earthquake ... and would have an infintesimal effect on tectonic plates ...

Would a butterfly's wings create a hurricaine ? ..

[carpediem]

7. here is some info from usgs - they say depth was 3.1 miles

A micro earthquake occurred at 00:41:55 (UTC) on Saturday, March 12, 2005. The magnitude 2.7 event has been located in FLORIDA PENINSULA. (This event has been reviewed by a seismologist.)

Small globe showing earthquake

Small map showing earthquake




Magnitude 2.7
Date-Time Saturday, March 12, 2005 at 00:41:55 (UTC)
= Coordinated Universal Time
Friday, March 11, 2005 at 7:41:55 PM
= local time at epicenter
Time of Earthquake in other Time Zones
Location 27.950°N, 82.460°W
Depth 5 km (3.1 miles) set by location program
Region FLORIDA PENINSULA
Distances 2 km (2 miles) S (169°) from Tampa, FL
8 km (5 miles) WNW (287°) from Palm River-Clair Mel, FL
9 km (5 miles) SSE (147°) from Egypt Lake-Leto, FL
327 km (203 miles) NW (318°) from Miami, FL
Location Uncertainty Error estimate not available
Parameters Nst= 1, Nph= 1, Dmin=102.5 km, Rmss=0 sec, Gp= 0,
M-type="Nuttli" surface wave magnitude (MLg), Version=8
Source Macroseismic location
Event ID usvnab
Felt Reports Sonic boom felt from Clearwater to Tampa.

[rzemanfl]

9. Now that's some low flying. n/t

[kittenpants]

13. lol

[ashmanonar]

16. "Would a butterfly's wings create a hurricane?"

i think that's the most interesting thing here. no, the sonic boom probably didn't make a seismic movement. but we don't really know WHAT causes seismic movements, except for the most obvious reasons (mechanically). (sorta the same situation with evolution: we know it happens, we don't really know why; we know there are earthquakes, and we can see some causes, but not all of them.) plus, there's the old consideration of whether change anywhere in the world can create change elsewhere, in seemingly unconnectable ways.

then, of course, there's the "bunker buster" nukes they're trying to push through, that can destroy bunkers deep beneath the ground. that scares me just a little bit. :scared:

[carpediem]

3. the ANSS shows it in Tampa 2.7 I think the news said...

http://earthquake.usgs.gov/recenteqsUS/Maps/US2/27.29.-83.-81.html

I posted a thread here

http://www.democraticunderground.com/discuss/duboard.php?az=show_mesg&forum=104&topic_id=3259609&mesg_id=3259609

when I felt the rumbling and someone posted the link to that map.

[ultraist]

22. shows one in the tampa area

[Stop_the_War]

5. here's the map that shows the seismic activity

http://earthquake.usgs.gov/recenteqsUS/Maps/US10/22.32.-90.-80.html

[rzemanfl]

6. Thanks. So a sonic boom over the Gulf of Mexico near Tampa

sets off a seismograph near Disney World? And people hear it in Tallhassee?

[Stop_the_War]

8. what was it?

[kittenpants]

10. good question! I wonder who reported it was a sonic boom in the 1st place

[rzemanfl]

12. Pinellas Sheriff via MacDill. n/t

[rzemanfl]

11. Apparently two jets flying 3.1 miles below sea level. n/t

[Stop_the_War]

14. 3.1 miles BELOW sea level? lol

[Pithy Cherub]

17. that had me howling...

top secret underground/water planes...

[seabeyond]

21. top secret underground/water planes...

lmao........that was funny. i was in huh too

[Democrats_win]

15. SR-71 and Space shuttle sonic booms have been measured by

seismic instruments. Note, 2.6 on the Richter scale is really small. As response #4 indicates, scientific principles of waves requires that sound waves reflect from the ground rather than penetrate very far. Ground penetrating radar--radio waves--have the correct wavelength to penetrate to a greater depth.

(Long article about SR-71 and SS booms detected in CA:)
http://www.sonicbooms.org/ReferenceTechPapers/seismicboom.pdf

[rzemanfl]

23. Looked briefly at that article. Pretty technical. Sounds like a

sonic boom may be the explanation, except for the depth thing which I think I will wait for the morning paper to explain to me.

Thanks. Quite honestly, my first thought was that something big had blown up at MacDill, which is about 20 miles from here.

[ultraist]

18. another thread about this here, maybe more info

http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=104x3259609

[T Town Jake]

19. No, no, no, no....

..."sonic booms" and "seismic activity" are "related" in the same sense that carnival balloons popped with a safety-pin and F-5 tornadoes are...which is to say, not really at all...

[rzemanfl]

24. Get your best reading glasses & a fresh pot of coffee and try to

read the pdf document about SR-71 and shuttle booms detected by seismographs noted a few posts above.

[T Town Jake]

30. Don't wear glasses...

...(never needed them), and consider any horseshit speculations about "shuttle booms" and "seismographs" to be beyond the ability of a "pot of coffee" to clarify.

Get real.

[rzemanfl]

31. Glad you don't need glasses. Tell me that again when you are

55. Rejecting a theory without looking at evidence is kind of a Republican thing to do though. I can't understand all the math about wave propagation in this report, but I really doubt it is "horseshit."

[rman]

32. sonic booms are not rare, what's rare to the point of being unique

is a sonic boom that causes the ground to shake (over a fairly large area) so that people feel it.

So it is rather likely this earthquake-like phenomena was not caused by a sonic boom.

[kittenpants]

20. has anyone if FL ever experienced an earthquake before or know

of a faultline around here?

[peacetalksforall]

25. I remember reading and seeing graphs showing the LACK of seismic

potential for FL.

At the same time, I will write from faded memory of a book I read many years agao - by author Edgar Cayce - who predicted that the southern part of FL would be an island. Anyone remember it better that that?

[lala_rawraw]

26. What about Florida? I am

There....what is going on?

[kittenpants]

27. there was some noise and shaking from Sarasota & up the gulf coast.

First, it was reported as a sonic boom by McDill, but there was also seismic activity (2.7) recorded 3.1 miles below ground. But the latest idea is that the sensors for seismic activity are above ground so the boom could have caused the reading.... I'm not sure why it would register as being 3.1 miles below ground though.

[lala_rawraw]

28. Drilling?

I have no clue on such things. Plus I have had my head up my arse for the last 48 hours working on something that no one seems to have read, lol. So update me on the Florida stuff please as I am very out of it.:) thank you kindly.

[Xithras]

29. It could simply be a confused computer.

Those seismic computers are programmed with the assumption that earthquakes occur within the Earth. If the stations picked up a shockwave from an aerial blast, the computer may have simply been incapable of correctly triangulating the source.

My guess: These blasts happen from time to time and are usually attributed to meteors. They occasionally make it to the lower atmosphere and explode, and are tremendously loud when they do.

[dbt]

33. Google Tesla earthquake machine.

OR Trust Your Government. You know they'd never do anything to harm us.

:evilgrin:

[dogindia]

34. strange straight long cloud over NYC this afternoon Saturday.

I have not found out yet how to post image but have posted the url of accuweather on the science forum.

It was very strange. I have never seen such a long completely regular cloud. The satellite shows it very completely.

There was a posting a few months ago about magnetic control of weather. The cloud has broken up now at about 4pm saturday. But it is still visible.