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Kunich's Awesome Resume



 
 
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Old March 6th 07, 07:43 PM posted to rec.bicycles.racing
Kurgan Gringioni
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Default Kunich's Awesome Resume

On Jan 10 2005, 6:29 pm, "Tom Kunich" wrote:
"Bob Schwartz" wrote in message

...


wrote:
So, tell us the worst tsunami to ever hit the USA? While you're at it
perhaps you'd like to explain the source of tsunamis. Oh, and be detailed
on
it since I have studied vulcanology and Seismology a bit.


http://www.ngdc.noaa.gov/seg/hazard/tsu.shtml


An online database of both source events and runup data.


Hawaii and Alaska get hit a lot. California gets hit a lot
too, although the effects tend to be minor. Any oceanic
faultline is a source, in the US that mostly means Alaska.


A 1933 tsunami off the coast of Southern California killed
three people in La Jolla.


A 1946 Aleutian tsunami killed 165 people total including
128 people in Hawaii and one person in Santa Cruz.


But of course, you already knew that. I'm posting this
for the benefit of the unwashed masses that are less
learned than yourself.


Bob Schwartz


The main reasons that people in the USA aren't killed by tsunamis is because
the worst ones are caused either by major eruptions of underwater volcanoes
or by a rapid vertical jerk-type earthquake in a subduction zone. Also the
coasts of the USA are wide open to the ocean and hence don't cause the
focusing effects that often multiply wave size and power.

None of those sources are close to the USA and hence the chances of any
major damage from a tsunami are relatively minor at best.



snip


Dumbasses -


The above posts, after the Indonesian tsunami, were so absurd that
they stuck in my memory. Kunich is an expert on vulcanology and
seismology. heh heh. One of the numerous branches of science about
which he is oh-so-knowledgable. A true polymath. Remember, none of the
subduction zones are close to the USA.


From:
http://www.livescience.com/forcesofn...a_tsunami.html

Tsunami-Generating Earthquake Near U.S. Possibly Imminent

By Robin Lloyd
Special to LiveScience
posted: 03 January 2005
07:21 pm ET



There are only two places in the United States where colliding
tectonic plates could cause a major tsunami, and new studies show a
new earthquake in at least one of these locations could be imminent.

The Cascadia subduction zone, a 680-mile fault that runs 50 miles off
the coast of the Pacific Northwest -- from Cape Mendocino in
California to Vancouver Island in southern British Columbia -- has
experienced a cluster of four massive earthquakes during the past
1,600 years. Scientists are trying to figure out if it is about to
undergo a massive shift one more time before entering a quiescent
period.

"People need to know it could happen," said U.S. Geological Survey
geologist Brian A****er.

The historical record for this zone, which has the longest recorded
data about its earthquakes of any major fault in the world, shows that
earthquakes occur in clusters of up to five events, with an average
time interval of 300 years between quakes, said Chris Goldfinger, a
marine geologist at Oregon State University. Goldfinger and other
scientists have been studying this subduction zone for many years.

The two most recent quakes on this fault occurred in the year 1700 (a
magnitude 9 event) and approximately the year 1500. It has now been
305 years since the last event. So is the Cascadia subduction zone
finished for now or on the brink of event number five?

"We know quite a bit about the periodicity of this fault zone and what
to expect," he said. "But the key point we don't know is whether the
current cluster of earthquake activity is over yet, or does it have
another event left in it."

At the Cascadia subduction zone, an oceanic tectonic plate called the
Juan de Fuca is pulled and driven (subducted) beneath the continental
North American plate, setting up conditions for undersea "megathrust"
earthquakes.

The Cascadia subduction zone occurs where the relatively thin Juan de
Fuca plate moves eastward and under the westward-moving North American
Plate. When that collision results in a rupture, massive earthquakes
occur. The other active subduction zone capable of producing a major
earthquake-tsunami sequence is in Alaska, the site of a giant
earthquake and subsequent tsunami in 1964.

Scientists say a rupture along the Cascadia fault would cause the sea
floor to bounce 20 feet or more, setting off powerful ocean waves
relatively close to shore. The first waves could hit coastal
communities in 30 minutes or less -- too rapidly for the current
warning systems to save lives.

snipend

 




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