Re: 5.2 Gulf of Mexico probably a slump


"Don" <seismicmeister@xxxxxxxxx> wrote in message
news:1140721090.213870.48600@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx


Umm...did you see the part that claimed the Gulf of Mexico was
geologically
similar to the area of the Sumatran Megathrust?

Yes I did, and it is nonsense.

Did you read the additional article blaming the Sumatran Megathrust on
Exxon-Mobil?


The was a different story, and that is BS as well.

George

Hi All. I find the geology of the Gulf of Mexico and surrounding area
very interesting.

Most of the earthquakes that have occurred in the area have been around
the area Puerto Rico, which I also find interesting in that there have
been a number of M=7.0 and larger quakes in the area.

"The region has a long history of destructive earthquakes. Historical
records show that major earthquakes have struck the Puerto Rico, Virgin
Islands region many times during the past 500 years although the
locations and sizes of events that occurred more than a few decades ago
are poorly known. Major earthquakes, greater than magnitude 7.0,
damaged Puerto Rico in 1670, 1787, 1831, 1844, 1846, 1865, 1867, 1875,
1890, 1906, 1918, 1943 and 1946. The 1867,1918 and 1946 earthquakes
were accompanied by destructive tsunamis."

Why did the quakes stop in 1946? It seem as if the area just ran out
of steam. Is the area in a "stress shadow" and if so when will it
come out of the "stress shadow"?

The map showing the earthquakes that have occurred off the Gulf Coast
only covers a small area and not the entire Gulf. You can see the
location of the most recent quake, which may not have been a quake.
That raises the question in that are the others true quakes or are they
slumps? Take Care...Don

http://oceanexplorer.noaa.gov/explorations/02mexico/background/geology/media/gulfcaribbean_432.jpg

http://oceanexplorer.noaa.gov/explorations/02mexico/background/geology/geology.html

http://i5.photobucket.com/albums/y151/Quakemeister/SAVE0037.jpg

Puerto Rico is not in the Gulf of Mexico. The tectonic setting there is
different than in the Gulf.

George


.

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