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Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"

 
gdwk
User ID: 22306955
United States
10/29/2012 07:15 PM
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Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
This statement was made by Robert Dziak Associate Professor
at Oregon State University in an Article Published in
a the Geologist Journal.

[link to www.sciencedaily.com]


He as been working with data which was formerly classified
by the US Navy.

In my opinion the recent Earthquakes 10/28/2012 which
occurred at Queen Charlotte Islands validates his theory.

Queen Charlotte Islands experienced an Earthquake M8.1 in
1949 which was the largest ever recorded in Canada.

The Earthquakes on 10/28/2012 were M7.7 and M6.3 with
a swarm of earthquakes of Lower Magnitude.

If the Earthquakes on 10/28/2012 had been larger than
M8.1, I would question his statement that the "subduction
of the northeren portion of the Juan de Fuca plate beneath
the North American plate may be slowing and eventually
cease".

A review of Earthquake History shows that the Largest
Earthquake to occur in Washington State is M7.0.

The Largest Earthquake to occur in Oregon is M6.8.

There are others who post on GLP who predict earthquakes
as strong as M9.0+.

There is no evidence to support such a prediction.

sheep

Herman says No Doom for the Northwest.
Anonymous Coward
User ID: 919411
United States
10/29/2012 07:28 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
bump
Janine69

User ID: 26485422
United States
10/29/2012 08:09 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
This statement was made by Robert Dziak Associate Professor
at Oregon State University in an Article Published in
a the Geologist Journal.

[link to www.sciencedaily.com]


He as been working with data which was formerly classified
by the US Navy.

In my opinion the recent Earthquakes 10/28/2012 which
occurred at Queen Charlotte Islands validates his theory.

Queen Charlotte Islands experienced an Earthquake M8.1 in
1949 which was the largest ever recorded in Canada.

The Earthquakes on 10/28/2012 were M7.7 and M6.3 with
a swarm of earthquakes of Lower Magnitude.

If the Earthquakes on 10/28/2012 had been larger than
M8.1, I would question his statement that the "subduction
of the northeren portion of the Juan de Fuca plate beneath
the North American plate may be slowing and eventually
cease".

A review of Earthquake History shows that the Largest
Earthquake to occur in Washington State is M7.0.

The Largest Earthquake to occur in Oregon is M6.8.

There are others who post on GLP who predict earthquakes
as strong as M9.0+.

There is no evidence to support such a prediction.

sheep

Herman says No Doom for the Northwest.
 Quoting: gdwk 22306955


You are forgetting the great quake in 1700.
gdwk (OP)
User ID: 22306955
United States
10/29/2012 10:37 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
This statement was made by Robert Dziak Associate Professor
at Oregon State University in an Article Published in
a the Geologist Journal.

[link to www.sciencedaily.com]


He as been working with data which was formerly classified
by the US Navy.

In my opinion the recent Earthquakes 10/28/2012 which
occurred at Queen Charlotte Islands validates his theory.

Queen Charlotte Islands experienced an Earthquake M8.1 in
1949 which was the largest ever recorded in Canada.

The Earthquakes on 10/28/2012 were M7.7 and M6.3 with
a swarm of earthquakes of Lower Magnitude.

If the Earthquakes on 10/28/2012 had been larger than
M8.1, I would question his statement that the "subduction
of the northeren portion of the Juan de Fuca plate beneath
the North American plate may be slowing and eventually
cease".

A review of Earthquake History shows that the Largest
Earthquake to occur in Washington State is M7.0.

The Largest Earthquake to occur in Oregon is M6.8.

There are others who post on GLP who predict earthquakes
as strong as M9.0+.

There is no evidence to support such a prediction.

sheep

Herman says No Doom for the Northwest.
 Quoting: gdwk 22306955


You are forgetting the great quake in 1700.
 Quoting: Janine69


I am not forgetting the so-called Great Quake in 1700.

A Geologist Brian Atwater who works for the University of
Washington wrote a book in 2005 "The Orphan Tsunami of
1700".

He Speculated that a Earthquake Occurred in 1700 which
damaged Coastal Villages in Japan originated in the Cascadia
Subduction Zone.

There is no evidence that it is possible for a Tsunami from
North America to damage Japan.

In 1964 a M9.2 Earthquake occured in Prince William Sound in
Alaska.

The Tsunami Traveled to Hawaii but not to Japan.

In 2011 the 10 Meter Tsunami in Japan Traveled to the
Harbor of Santa Cruz in the California.

The Tsunami was less than a Meter in Height.

Show me evidence that it is possible for a Tsunami to
Traverse the Pacific and I will accept the 1700 Speculation.

sheep

Herman says Look at the Data.
Ignore Opinions.
Anonymous Coward
User ID: 23703306
Canada
10/30/2012 02:26 AM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
well I looked at some maps and it seems to me that the Cascadia subduction zone doesn't include the Queen Charlotte Islands

[link to www.google.com]

Secondly, read this article and think for yourself
[link to theextinctionprotocol.wordpress.com]

and btw, THAT map of the Cascadia doesn't show the Queen Charlottes either
Strawberrymittens

User ID: 26604828
United States
10/30/2012 03:35 AM

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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
well I looked at some maps and it seems to me that the Cascadia subduction zone doesn't include the Queen Charlotte Islands

[link to www.google.com]

Secondly, read this article and think for yourself
[link to theextinctionprotocol.wordpress.com]

and btw, THAT map of the Cascadia doesn't show the Queen Charlottes either
 Quoting: Anonymous Coward 23703306



Just because it doesn't come up on a Google map doesn't mean that Queen Charlotte isn't part of it.
[link to en.wikipedia.org]
[link to en.wikipedia.org]
"The Queen Charlotte Fault forms a triple junction on its south with the Cascadia subduction zone and the Explorer Ridge (the Queen Charlotte Triple Junction)."
The universe seems neither benign nor hostile, merely indifferent to the concerns of such puny creatures as we are. - Carl Sagan
Anonymous Coward
User ID: 23703306
Canada
10/30/2012 04:15 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
oh sorry about the confusion. you're right.
I'm not gonna prepare, hell, I'll wait for the government to tell me what's going on and the main stream media.

Sheeple!

bsmeter2
Anonymous Coward
User ID: 10393879
United States
10/30/2012 04:16 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
I love fresh news ScienceDaily (Apr. 17, 2006)
gdwk (OP)
User ID: 22306955
United States
10/31/2012 01:57 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
well I looked at some maps and it seems to me that the Cascadia subduction zone doesn't include the Queen Charlotte Islands

[link to www.google.com]

Secondly, read this article and think for yourself
[link to theextinctionprotocol.wordpress.com]

and btw, THAT map of the Cascadia doesn't show the Queen Charlottes either
 Quoting: Anonymous Coward 23703306


The Queen Charlotte Islands are definitely part of
the Cascadia Subduction Zone.

[link to en.wikipedia.org]
gdwk (OP)
User ID: 22306955
United States
10/31/2012 02:06 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
I love fresh news ScienceDaily (Apr. 17, 2006)
 Quoting: Anonymous Coward 10393879


The Article is more relevant today than in 2006.

In 2008 Mt. St. Helens stopped building its dome which
indicates that the rate of Subduction in the Cascadia
Subduction Zone is Decreasing.

The recent earthquakes in Queen Charlotte Islands was
within the Magnitudes predicted by Professor Dziak
of OSU.

sheep
waterlily

User ID: 19961452
United States
11/02/2012 02:22 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
This statement was made by Robert Dziak Associate Professor
at Oregon State University in an Article Published in
a the Geologist Journal.

[link to www.sciencedaily.com]


He as been working with data which was formerly classified
by the US Navy.

In my opinion the recent Earthquakes 10/28/2012 which
occurred at Queen Charlotte Islands validates his theory.

Queen Charlotte Islands experienced an Earthquake M8.1 in
1949 which was the largest ever recorded in Canada.

The Earthquakes on 10/28/2012 were M7.7 and M6.3 with
a swarm of earthquakes of Lower Magnitude.

If the Earthquakes on 10/28/2012 had been larger than
M8.1, I would question his statement that the "subduction
of the northeren portion of the Juan de Fuca plate beneath
the North American plate may be slowing and eventually
cease".

A review of Earthquake History shows that the Largest
Earthquake to occur in Washington State is M7.0.

The Largest Earthquake to occur in Oregon is M6.8.

There are others who post on GLP who predict earthquakes
as strong as M9.0+.

There is no evidence to support such a prediction.

sheep

Herman says No Doom for the Northwest.
 Quoting: gdwk 22306955


You are forgetting the great quake in 1700.
 Quoting: Janine69


I am not forgetting the so-called Great Quake in 1700.

A Geologist Brian Atwater who works for the University of
Washington wrote a book in 2005 "The Orphan Tsunami of
1700".

He Speculated that a Earthquake Occurred in 1700 which
damaged Coastal Villages in Japan originated in the Cascadia
Subduction Zone.

There is no evidence that it is possible for a Tsunami from
North America to damage Japan.


In 1964 a M9.2 Earthquake occured in Prince William Sound in
Alaska.

The Tsunami Traveled to Hawaii but not to Japan.

In 2011 the 10 Meter Tsunami in Japan Traveled to the
Harbor of Santa Cruz in the California.

The Tsunami was less than a Meter in Height.

Show me evidence that it is possible for a Tsunami to
Traverse the Pacific and I will accept the 1700 Speculation.

sheep

Herman says Look at the Data.
Ignore Opinions.
 Quoting: gdwk 22306955


How about a tsumami from a South American earthquake?

1960: Valdivia, Chile
Main article: 1960 Valdivia earthquake

The magnitude-9.5 Great Chilean Earthquake of May 22, 1960 is the strongest earthquake ever recorded. Its epicenter, off the coast of South Central Chile, generated one of the most destructive tsunami of the 20th Century. It also caused a volcanic eruption.

It spread across the entire Pacific Ocean, with waves measuring up to 25 meters high. The first tsunami arrived at Hilo approximately 14.8 hrs after it originated off the coast of South Central Chile. The highest wave at Hilo Bay was measured at around 10.7 m (35 ft). 61 lives were lost allegedly due to people's failure to heed warning sirens.

Almost 22 hours after the quake, the waves hit the ill-fated Sanriku coast of Japan, reaching up to 3 m above high tide, and killed 142 people. Up to 6,000 people died in total worldwide due to the earthquake and tsunami.[33]
Wikipedia
*********** WaterLily ***********
" Do I dare
Disturb the universe?"
-- T. S. Elliot, Love Song of J. Alfred Prufrock

*************************************
“We are as ignorant of the meaning of the dragon as we are of the meaning of the universe.”
-- Jorge Luis Borges
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Pompey made his preparations for the war at the end of the winter, entered upon it at the commencement of spring,
and finished it in the middle of the summer."
-- Cicero, De Imperio Cn. Pompei
gdwk (OP)
User ID: 22306955
United States
11/02/2012 03:56 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
This statement was made by Robert Dziak Associate Professor
at Oregon State University in an Article Published in
a the Geologist Journal.

[link to www.sciencedaily.com]


He as been working with data which was formerly classified
by the US Navy.

In my opinion the recent Earthquakes 10/28/2012 which
occurred at Queen Charlotte Islands validates his theory.

Queen Charlotte Islands experienced an Earthquake M8.1 in
1949 which was the largest ever recorded in Canada.

The Earthquakes on 10/28/2012 were M7.7 and M6.3 with
a swarm of earthquakes of Lower Magnitude.

If the Earthquakes on 10/28/2012 had been larger than
M8.1, I would question his statement that the "subduction
of the northeren portion of the Juan de Fuca plate beneath
the North American plate may be slowing and eventually
cease".

A review of Earthquake History shows that the Largest
Earthquake to occur in Washington State is M7.0.

The Largest Earthquake to occur in Oregon is M6.8.

There are others who post on GLP who predict earthquakes
as strong as M9.0+.

There is no evidence to support such a prediction.

sheep

Herman says No Doom for the Northwest.
 Quoting: gdwk 22306955


You are forgetting the great quake in 1700.
 Quoting: Janine69


I am not forgetting the so-called Great Quake in 1700.

A Geologist Brian Atwater who works for the University of
Washington wrote a book in 2005 "The Orphan Tsunami of
1700".

He Speculated that a Earthquake Occurred in 1700 which
damaged Coastal Villages in Japan originated in the Cascadia
Subduction Zone.

There is no evidence that it is possible for a Tsunami from
North America to damage Japan.


In 1964 a M9.2 Earthquake occured in Prince William Sound in
Alaska.

The Tsunami Traveled to Hawaii but not to Japan.

In 2011 the 10 Meter Tsunami in Japan Traveled to the
Harbor of Santa Cruz in the California.

The Tsunami was less than a Meter in Height.

Show me evidence that it is possible for a Tsunami to
Traverse the Pacific and I will accept the 1700 Speculation.

sheep

Herman says Look at the Data.
Ignore Opinions.
 Quoting: gdwk 22306955


How about a tsumami from a South American earthquake?

1960: Valdivia, Chile
Main article: 1960 Valdivia earthquake

The magnitude-9.5 Great Chilean Earthquake of May 22, 1960 is the strongest earthquake ever recorded. Its epicenter, off the coast of South Central Chile, generated one of the most destructive tsunami of the 20th Century. It also caused a volcanic eruption.

It spread across the entire Pacific Ocean, with waves measuring up to 25 meters high. The first tsunami arrived at Hilo approximately 14.8 hrs after it originated off the coast of South Central Chile. The highest wave at Hilo Bay was measured at around 10.7 m (35 ft). 61 lives were lost allegedly due to people's failure to heed warning sirens.

Almost 22 hours after the quake, the waves hit the ill-fated Sanriku coast of Japan, reaching up to 3 m above high tide, and killed 142 people. Up to 6,000 people died in total worldwide due to the earthquake and tsunami.[33]
Wikipedia
 Quoting: waterlily


The M9.5 Chilean Earthquake did reach Japan.

This Tsunami was assisted by the Northern Equatorial Current
which Flows East to West.

There is no evidence that a Tsunami reached Japan from
North America from the Cascadia Subduction Zone.

A small Tsunami did reach Hawaii which was Generated from
the Recent M7.7 Earthquake in the Queen Charlotte Islands.

This Tsunami was not visible at all in Japan.

sheep
gdwk (OP)
User ID: 22306955
United States
11/10/2012 12:43 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
The Apocalyptic Predictions of a M9+ Earthquake for
a Tsunami in The Cascadia Subduction Zone is based on
a Book Called The Orphan Tsunami of 1700 by Brian F. Atwater
and Associates published in 2005.

A review of the Book is published in The Science of
Tsunami Hazards, Vol 24, No. 1 Page 49-55 (2006).

[link to www.tsunamisociety.org]

In the Conclusion the Author States:

"potential magnitudes may have been overstated."

"The major conclusion linking the ""orphan"" tsunami in
Japan to a Cascade megathrust, magnitude 9 earthquake
is based on conjecture and peripheral circumstantial
evidence."

"the book ..... still leaves us with the uncertainty
of what really was the parent event that resulted in
the destructive tsunami of 1700 in Japan."

"the book is a possible scenario but not necessarily
what actually happened."

"absence of adequate historical or geological data to
work with and sufficiently link the two disaster events."

Earthquake History since 1900 shows the following:

Largest Earthquakes to occur in each Location since 1900:

California - Gorda Plate - M7.2 1980

Oregon - Juan de Fuca Plate - M6.8 1910

Vancouver Island - Explorer Plate - M7.3 1946

Washington State - Juan de Fuca Plate - M7.1 1949

The Book Review and Earthquake History is further confirmation that a Future Earthquake "may be of the
Magnitude of 7 to 8 instead of larger".

sheep
Anonymous Coward
User ID: 27412420
Canada
11/10/2012 12:49 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
This statement was made by Robert Dziak Associate Professor
at Oregon State University in an Article Published in
a the Geologist Journal.

[link to www.sciencedaily.com]


He as been working with data which was formerly classified
by the US Navy.

In my opinion the recent Earthquakes 10/28/2012 which
occurred at Queen Charlotte Islands validates his theory.

Queen Charlotte Islands experienced an Earthquake M8.1 in
1949 which was the largest ever recorded in Canada.

The Earthquakes on 10/28/2012 were M7.7 and M6.3 with
a swarm of earthquakes of Lower Magnitude.

If the Earthquakes on 10/28/2012 had been larger than
M8.1, I would question his statement that the "subduction
of the northeren portion of the Juan de Fuca plate beneath
the North American plate may be slowing and eventually
cease".

A review of Earthquake History shows that the Largest
Earthquake to occur in Washington State is M7.0.

The Largest Earthquake to occur in Oregon is M6.8.

There are others who post on GLP who predict earthquakes
as strong as M9.0+.

There is no evidence to support such a prediction.

sheep

Herman says No Doom for the Northwest.
 Quoting: gdwk 22306955


You are forgetting the great quake in 1700.
 Quoting: Janine69


I am not forgetting the so-called Great Quake in 1700.

A Geologist Brian Atwater who works for the University of
Washington wrote a book in 2005 "The Orphan Tsunami of
1700".

He Speculated that a Earthquake Occurred in 1700 which
damaged Coastal Villages in Japan originated in the Cascadia
Subduction Zone.

There is no evidence that it is possible for a Tsunami from
North America to damage Japan.

In 1964 a M9.2 Earthquake occured in Prince William Sound in
Alaska.

The Tsunami Traveled to Hawaii but not to Japan.

In 2011 the 10 Meter Tsunami in Japan Traveled to the
Harbor of Santa Cruz in the California.

The Tsunami was less than a Meter in Height.

Show me evidence that it is possible for a Tsunami to
Traverse the Pacific and I will accept the 1700 Speculation.


sheep

Herman says Look at the Data.
Ignore Opinions.
 Quoting: gdwk 22306955


LOOK IT UP. It's recorded history that a tsunami in Japan hit at the same time that the cascadia fault went off.
Anonymous Coward (OP)
User ID: 22306955
United States
11/10/2012 01:06 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
This statement was made by Robert Dziak Associate Professor
at Oregon State University in an Article Published in
a the Geologist Journal.

[link to www.sciencedaily.com]


He as been working with data which was formerly classified
by the US Navy.

In my opinion the recent Earthquakes 10/28/2012 which
occurred at Queen Charlotte Islands validates his theory.

Queen Charlotte Islands experienced an Earthquake M8.1 in
1949 which was the largest ever recorded in Canada.

The Earthquakes on 10/28/2012 were M7.7 and M6.3 with
a swarm of earthquakes of Lower Magnitude.

If the Earthquakes on 10/28/2012 had been larger than
M8.1, I would question his statement that the "subduction
of the northeren portion of the Juan de Fuca plate beneath
the North American plate may be slowing and eventually
cease".

A review of Earthquake History shows that the Largest
Earthquake to occur in Washington State is M7.0.

The Largest Earthquake to occur in Oregon is M6.8.

There are others who post on GLP who predict earthquakes
as strong as M9.0+.

There is no evidence to support such a prediction.

sheep

Herman says No Doom for the Northwest.
 Quoting: gdwk 22306955


You are forgetting the great quake in 1700.
 Quoting: Janine69


I am not forgetting the so-called Great Quake in 1700.

A Geologist Brian Atwater who works for the University of
Washington wrote a book in 2005 "The Orphan Tsunami of
1700".

He Speculated that a Earthquake Occurred in 1700 which
damaged Coastal Villages in Japan originated in the Cascadia
Subduction Zone.

There is no evidence that it is possible for a Tsunami from
North America to damage Japan.

In 1964 a M9.2 Earthquake occured in Prince William Sound in
Alaska.

The Tsunami Traveled to Hawaii but not to Japan.

In 2011 the 10 Meter Tsunami in Japan Traveled to the
Harbor of Santa Cruz in the California.

The Tsunami was less than a Meter in Height.

Show me evidence that it is possible for a Tsunami to
Traverse the Pacific and I will accept the 1700 Speculation.


sheep

Herman says Look at the Data.
Ignore Opinions.
 Quoting: gdwk 22306955


LOOK IT UP. It's recorded history that a tsunami in Japan hit at the same time that the cascadia fault went off.
 Quoting: Anonymous Coward 27412420


The Tsusami which hit Japan did Occur however there is
only Circumstantial Evidence that the Tsunami was caused
by an earthquake from the Cascadia Subduction Zone at the
time time.

Did you read the Book Review?

The M9.2 Earthquake in Alaska in 1964 created a large
destructive Tsunami which reached Hawaii.

There is no evidence that a Tsunami can traverse the
Pacific against the Japanese Current and destroy the
coast of Japan.

sheep
gdwk (OP)
User ID: 22306955
United States
11/10/2012 01:10 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
...


You are forgetting the great quake in 1700.
 Quoting: Janine69


I am not forgetting the so-called Great Quake in 1700.

A Geologist Brian Atwater who works for the University of
Washington wrote a book in 2005 "The Orphan Tsunami of
1700".

He Speculated that a Earthquake Occurred in 1700 which
damaged Coastal Villages in Japan originated in the Cascadia
Subduction Zone.

There is no evidence that it is possible for a Tsunami from
North America to damage Japan.

In 1964 a M9.2 Earthquake occured in Prince William Sound in
Alaska.

The Tsunami Traveled to Hawaii but not to Japan.

In 2011 the 10 Meter Tsunami in Japan Traveled to the
Harbor of Santa Cruz in the California.

The Tsunami was less than a Meter in Height.

Show me evidence that it is possible for a Tsunami to
Traverse the Pacific and I will accept the 1700 Speculation.


sheep

Herman says Look at the Data.
Ignore Opinions.
 Quoting: gdwk 22306955


LOOK IT UP. It's recorded history that a tsunami in Japan hit at the same time that the cascadia fault went off.
 Quoting: Anonymous Coward 27412420


The Tsusami which hit Japan did Occur however there is
only Circumstantial Evidence that the Tsunami was caused
by an earthquake from the Cascadia Subduction Zone at the
time time.

Did you read the Book Review?

The M9.2 Earthquake in Alaska in 1964 created a large
destructive Tsunami which reached Hawaii.

There is no evidence that a Tsunami can traverse the
Pacific against the Japanese Current and destroy the
coast of Japan.

sheep
 Quoting: Anonymous Coward 22306955


Typographical Error "time time" should read "same time".

sheep
gdwk (OP)
User ID: 22306955
United States
11/14/2012 11:48 AM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
The Link Below is a map of the Tectonic Plate Boundaries.

The Cascadia Subduction Zone is relatively small compared
to other Subduction Zones.

The Velocity of Movement is quite small - 26MM per year.

The Cascadia Subduction Zone is composed of (3) plates -
the Explorer Plate, the Juan de Fuca Plate and the
Gorda Plate.

The Pacific Plate Subducts under the Okhotsk Plate where
Japan Rests at a rate of 95MM per year.

Whereas Japan can expect large earthquakes periodically,
the Cascadia Subduction Zone is simply too small to
generate an Earthquake Larger than Magnitude 7 to 8.

[link to upload.wikimedia.org]

sheep
Anonymous Coward
User ID: 1282542
United States
11/14/2012 11:52 AM
Report Abusive Post
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
This statement was made by Robert Dziak Associate Professor
at Oregon State University in an Article Published in
a the Geologist Journal.

[link to www.sciencedaily.com]


He as been working with data which was formerly classified
by the US Navy.

In my opinion the recent Earthquakes 10/28/2012 which
occurred at Queen Charlotte Islands validates his theory.

Queen Charlotte Islands experienced an Earthquake M8.1 in
1949 which was the largest ever recorded in Canada.

The Earthquakes on 10/28/2012 were M7.7 and M6.3 with
a swarm of earthquakes of Lower Magnitude.

If the Earthquakes on 10/28/2012 had been larger than
M8.1, I would question his statement that the "subduction
of the northeren portion of the Juan de Fuca plate beneath
the North American plate may be slowing and eventually
cease".

A review of Earthquake History shows that the Largest
Earthquake to occur in Washington State is M7.0.

The Largest Earthquake to occur in Oregon is M6.8.

There are others who post on GLP who predict earthquakes
as strong as M9.0+.

There is no evidence to support such a prediction.

sheep

Herman says No Doom for the Northwest.
 Quoting: gdwk 22306955


When Cascadia ruptures it's going to be a lot larger than 7.0 mag, probably in the ballpark of 9.0 similar to what happened in Japan last year and Indonesia in 2004.

In fact there are some scientist that believe Cascadia could produce an unprecedented event like a 10.0 megaquake.

Either way it's not going to be pretty for the entire western US and Canada region when it happens.
gdwk (OP)
User ID: 22306955
United States
11/14/2012 12:13 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
This statement was made by Robert Dziak Associate Professor
at Oregon State University in an Article Published in
a the Geologist Journal.

[link to www.sciencedaily.com]


He as been working with data which was formerly classified
by the US Navy.

In my opinion the recent Earthquakes 10/28/2012 which
occurred at Queen Charlotte Islands validates his theory.

Queen Charlotte Islands experienced an Earthquake M8.1 in
1949 which was the largest ever recorded in Canada.

The Earthquakes on 10/28/2012 were M7.7 and M6.3 with
a swarm of earthquakes of Lower Magnitude.

If the Earthquakes on 10/28/2012 had been larger than
M8.1, I would question his statement that the "subduction
of the northeren portion of the Juan de Fuca plate beneath
the North American plate may be slowing and eventually
cease".

A review of Earthquake History shows that the Largest
Earthquake to occur in Washington State is M7.0.

The Largest Earthquake to occur in Oregon is M6.8.

There are others who post on GLP who predict earthquakes
as strong as M9.0+.

There is no evidence to support such a prediction.

sheep

Herman says No Doom for the Northwest.
 Quoting: gdwk 22306955


When Cascadia ruptures it's going to be a lot larger than 7.0 mag, probably in the ballpark of 9.0 similar to what happened in Japan last year and Indonesia in 2004.

In fact there are some scientist that believe Cascadia could produce an unprecedented event like a 10.0 megaquake.

Either way it's not going to be pretty for the entire western US and Canada region when it happens.
 Quoting: Anonymous Coward 1282542


The Scientists who are predicting a Magnitude of 8+ for
Cascadia are in variance to Professor Dziak of OSU.

He works at a Research Lab located in Newberg on the Oregon
coast.

He has studied the Cascadia Subduction Zone for more than
(10) years.

He made the statement which is the Subject of my Thread
that a Cascadia Earthquake "may be in the Magnitude of
7 to 8 instead of Larger".

The Pacific Plate which subducts under the Okhotsk Plate
is much Larger than the Explorer Plate, the Juan De Fuca
Plate or the Gorda Plate combined.

The Velocity of Subduction of the Pacific Plate is also
approximately (3) times Larger than the Cascadia Bubduction
zone.

Japan can expect periodic Large Earthquakes.

I support the opinion of Professor Dziak.

sheep
gdwk (OP)
User ID: 22306955
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11/18/2012 12:32 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
Since 1900 there have been (17) large earthquakes M8.5+.

None of the Earthquakes have occurred in Southerm Alaska,
Canada, The United States, Mexico, or Central America.

The Link shows the Earthquakes Plotted on the World Map.

[link to earthquake.usgs.gov]

This Pattern will not change any time soon.

The Queen Charlotte Fault, the Cascadia Subduction Zone,
and the San Andreas Fault experience a large number of
Small Earthquakes which release Energy so a larger
Earthquake will not occur.

Those who are predicting The Big One in North America
are going to be disappointed.

sheep
gdwk (OP)
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11/28/2012 01:42 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
Since 1900 there have been (89) M8+ Earthquakes.

[link to earthquake.usgs.gov]

None have occurred within the Cascadia Earthquake Zone nor
on the San Andreas Fault.

A M8.1 Occurred on the Queen Charlotte Fault in 1949 which
is the Third Leg of the Queen Charlotte Triple Junction
on the Northern Tip of the Cascadia Earthquake Zone but this
Fault is Technically not part of the Cascadia Subduction
Zone.

Those who state that the Cascadia Subduction Zone and
the San Andreas Fault are the most dangerous in the World
are not looking at Historical Data.

sheep
gdwk (OP)
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02/25/2013 10:10 AM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
Since 1900 there have been (89) M8+ Earthquakes.

[link to earthquake.usgs.gov]

None have occurred within the Cascadia Earthquake Zone nor
on the San Andreas Fault.

A M8.1 Occurred on the Queen Charlotte Fault in 1949 which
is the Third Leg of the Queen Charlotte Triple Junction
on the Northern Tip of the Cascadia Earthquake Zone but this
Fault is Technically not part of the Cascadia Subduction
Zone.

Those who state that the Cascadia Subduction Zone and
the San Andreas Fault are the most dangerous in the World
are not looking at Historical Data.

sheep
 Quoting: gdwk 22306955


There are now (90) M8+ Earthquakes which have occurred
in the World Since 1900 after the recent M8.0 in the
Santa Cruz Islands.

None have occurred from the Queen Charlotte Triple Junction
located off the Coast of British Columbia and the Rivera
Triple Junction located of the Southern Tip of the Baja
Peninsula.

The 113 Year History of Earthquakes in the above Zone
have me convinced that Professor Dziak is correct that
the next Large Quakes will be in the Magnitude of 7 to 8.

sheep
Anonymous Coward
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03/13/2013 08:32 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
CASCADIA QUAKE THE WEEK OF MAY 17TH,2013
Anonymous Coward
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03/13/2013 08:40 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
enough sheep!
Eunuchorn
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03/13/2013 08:47 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
Please god soon!
Anonymous Coward
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03/13/2013 09:15 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
my husband is leaving for Seattle in the morning. and will be up there until the end of the month. i will be joining him for the last 5 days. for some reason i have a sick dreadful feeling. i dont like it. i think its just anxiety because i have not flown since 4th grade! also hubs and i dont usually spend time apart :o(

hope nothing goes till like the 28th!
gdwk (OP)
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03/15/2013 11:36 AM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
my husband is leaving for Seattle in the morning. and will be up there until the end of the month. i will be joining him for the last 5 days. for some reason i have a sick dreadful feeling. i dont like it. i think its just anxiety because i have not flown since 4th grade! also hubs and i dont usually spend time apart :o(

hope nothing goes till like the 28th!
 Quoting: Anonymous Coward 25147328


The Largest Earthquake to occur in Washington State was
a M7.0 in 1949.

Professor Robert Dziak of Oregon State University has
stated that the Tectonic Plates in the Cascadia Subduction
Zone are Moving.

The Tectonic Plates need to Lock before there is an
Energy Buildup to create a Major Earthquake.

In my opinion a Major Earthquake M7.0+ will not occur
in Washington State anytime soon.

sheep
gdwk (OP)
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07/30/2013 07:11 AM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
The Link below gives additional support to the statement
"may be in the Magnitude of 7 to 8 instead of Larger".

[link to www.newportnewstimes.com]

sheep
Anonymous Coward
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07/30/2013 07:36 AM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
There is evidence of past large quakes and tsunamis, as to the estimated size, 8~9. The evidence is in seafloor core drillings, there are hundreds of these cores. The sand deposits beneath topsoil, ghost forests along with the deposits of sand layered between the soils, etc. The evidence is always being gathered and looked at.
gdwk (OP)
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07/30/2013 11:07 AM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
There is evidence of past large quakes and tsunamis, as to the estimated size, 8~9. The evidence is in seafloor core drillings, there are hundreds of these cores. The sand deposits beneath topsoil, ghost forests along with the deposits of sand layered between the soils, etc. The evidence is always being gathered and looked at.
 Quoting: Anonymous Coward 9821449


You are Correct however, conditions have changed and
Professor Dziak bases his estimate on Future Earthquakes.

There are many Scientists who disagree with Him.

I disagree with Brian Atwater who wrote The Orphan
Tsunami of 1700.

All his conclusions are Circumstantial.

He has not proved that it was possible for an earthquake
to travel from North America to Japan.

He has not proved that there was an earthquake.

It is also impossible to prove Magnitude from Sediments.

sheep
gdwk (OP)
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07/30/2013 10:19 PM
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Re: Cascadia Earthquake - "may be in the Magnitude of 7 to 8 instead of larger"
A Total of 46,498 Earthquakes have been Located along
Oceanic Plate Boundaries.

[link to www.tos.org]

Such a large number of earthquakes eliminates the
possibility of any large earthquake from occurring.

sheep

Herman agrees.

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