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General Discussion >> Other Weather Events

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Prospero
Storm Tracker


Reged: Fri
Posts: 267
Loc: Gulfport, FL
Tsunami Threat?? GOM
      #73586 - Sun Sep 10 2006 11:42 AM

There was a 5.8 mag earthquake about 251 miles WSW of Bradenton, FL in the Gulf of Mexico less than an hour ago. I am wondering if we are vulnerable to tsunamis around the gulf and Tampa bay???

http://earthquake.usgs.gov/

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Prospero
Storm Tracker


Reged: Fri
Posts: 267
Loc: Gulfport, FL
Re: Tsunami Threat?? GOM [Re: Prospero]
      #73587 - Sun Sep 10 2006 11:53 AM

Tsunami waring system:

http://www.tsunami-alarm-system.com/en/

USGS Earthquake Hazards Program says it was a STRONG Earthquake at 6.0:

http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/usslav.php

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ClarkModerator
Meteorologist


Reged: Wed
Posts: 1710
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Re: Tsunami Threat?? GOM [Re: Prospero]
      #73588 - Sun Sep 10 2006 11:56 AM

Most of the Gulf isn't very condusive to tsunami impacts due to the shape of the coastline and duration of any tsunami fetch. Local NWS offices will warn for one, however, if the need arises -- the infrastructure is in place for that.

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Prospero
Storm Tracker


Reged: Fri
Posts: 267
Loc: Gulfport, FL
Re: Tsunami Threat?? GOM [Re: Clark]
      #73589 - Sun Sep 10 2006 12:02 PM

Would there be any wave action worth notice on the coast. If safe, I'd go take some pix.

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Ed DunhamAdministrator
Former Meteorologist & CFHC Forum Moderator (Ed Passed Away on May 14, 2017)


Reged: Sun
Posts: 2565
Loc: Melbourne, FL
Re: Tsunami Threat?? GOM [Re: Prospero]
      #73593 - Sun Sep 10 2006 12:27 PM

Well a tsunami is really not a Weather Event, however, if a local warning has not been issued, there will not be anything much to see - usually takes about a 7.0 to trigger a tsunami, but not always.

Since the sea wave travels at the speed of sound in (deep) salt water (about 680mph). Even at 500mph in the Gulf, by the time you read this, if its going to happen - it already has (for your location).
Cheers,
ED


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ClarkModerator
Meteorologist


Reged: Wed
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Re: Tsunami Threat?? GOM [Re: Prospero]
      #73594 - Sun Sep 10 2006 01:46 PM

An 8+ shallow earthquake off of the Yucatan has been modeled to produce a water rise of about 20" in Apalachee Bay, which is the peak of the possibilities. Not sure about other parts of the Gulf, but I'm not sure the threat is overly significant. Noticeable? Sure, and that's why the warning system is in place -- well, that, and the unexpected.

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GuppieGrouper
Weather Master


Reged: Fri
Posts: 596
Loc: Polk County, Florida
Re: Tsunami Threat?? GOM [Re: Clark]
      #73595 - Sun Sep 10 2006 02:25 PM

I was in Walmart and thought the delivery truck had hit the building(bumped it) Sales clerks thought it was the space shuttle. I just thoght they were behind on the news did not connect the two until I got home.

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God commands. Laymen guess. Scientists record.


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rhendryx
Verified CFHC User


Reged: Wed
Posts: 23
Loc: Tampa, FL
Re: Tsunami Threat?? GOM [Re: GuppieGrouper]
      #73597 - Sun Sep 10 2006 03:13 PM

I was sitting in my chair in my home office and felt a very slight shaking that lasted maybe 5 seconds.

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KC
Weather Hobbyist


Reged: Sun
Posts: 87
Loc: Naples, FL
Re: Tsunami Threat?? GOM [Re: rhendryx]
      #73602 - Sun Sep 10 2006 05:50 PM

Per Collier County Emergency Management, there are no tsunami warnings. However, they have advised that the USGS is asking anyone who felt the earthquake to complete a questionnaire:

The USGS wants to know if you felt today's (Sunday's) arthquake. If you did, cut-n-paste the entire URL, below, into your browser & fill out the report at this site:
http://pasadena.wr.usgs.gov/shake/STORE/Xslav_06/ciim_display.html


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danielwAdministrator
Moderator


Reged: Wed
Posts: 3525
Loc: Hattiesburg,MS (31.3N 89.3W)
Re: Tsunami Threat?? GOM [Re: KC]
      #73605 - Sun Sep 10 2006 07:29 PM

The earthquake earlier today was measured by the Dart II buoy- 42408.

USGS Epicenter of 26.327N, 86.571W
NDBC buoy 42408_25.41 N 86.80 W

http://www.ndbc.noaa.gov/station_page.php?station=42408






Edited by danielw (Sun Sep 10 2006 07:57 PM)


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madmumbler
Storm Tracker


Reged: Wed
Posts: 324
Loc: SWFL
Re: Tsunami Threat?? GOM [Re: rhendryx]
      #73625 - Mon Sep 11 2006 06:55 AM

We're in Rotonda on the Cape Haze peninsula, not far from the water (not even 2 miles) and I never felt a thing.

I was shocked when they announced it!

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Lesli in SWFL.
Friends help you move. Real friends help you move bodies.


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madmumbler
Storm Tracker


Reged: Wed
Posts: 324
Loc: SWFL
Re: Tsunami Threat?? GOM [Re: Clark]
      #73626 - Mon Sep 11 2006 06:57 AM

Quote:

Most of the Gulf isn't very condusive to tsunami impacts due to the shape of the coastline and duration of any tsunami fetch. Local NWS offices will warn for one, however, if the need arises -- the infrastructure is in place for that.




After the Indonesian Christmas quake, on one of the shows I watched about it, if I remember correctly, not all underwater quakes will cause tsunamis either. There's certain ones that will. I can't remember the differences though.

--------------------
Lesli in SWFL.
Friends help you move. Real friends help you move bodies.


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supermom1
Verified CFHC User


Reged: Sun
Posts: 10
Loc: Spring Hill, FL
Re: Tsunami Threat?? GOM [Re: KC]
      #73640 - Mon Sep 11 2006 10:36 PM

Thanks for the link.

We felt it here in Spring Hill. Just some shaking/vibrations for about 7 seconds.


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