Long period plot of 7.0 earthquake off coast of Northern California?
George
Patrick Porter
7.4---good rolling motion, books off shelves. Also a 5.1 seven minutes
later, at a location about two hundred miles southeast of here. When I
looked out the window folks were taking their after dinner strolls
through downtown, hands in pockets. Might be in for a bumpy few days
though.
George
"Patrick Porter" <ph...@webtv.net> wrote in message
news:29253-42A...@storefull-3211.bay.webtv.net...
It was downgraded to a 7.0.
Skywise
@attbi_s72:
> http://www.pgc.nrcan.gc.ca/seismo/seismos/24hr-PGC.LHZ.shtml
>
>
Some more webicorder sites:
Pacific Northwest Seismic Network volcano webicorders:
http://www.pnsn.org/WEBICORDER/VOLC/welcome.html
Take a look at Longmire (LO2). It's saturated.
Northern California Seismic Network:
http://quake.usgs.gov/waveforms/helicorder/index.html
Brian
--
http://www.skywise711.com - Lasers, Seismology, Astronomy, Skepticism
Seismic FAQ: http://www.skywise711.com/SeismicFAQ/SeismicFAQ.html
Blog: http://www.skywise711.com/Blog
Sed quis custodiet ipsos Custodes?
Skywise
@attbi_s72:
> http://www.pgc.nrcan.gc.ca/seismo/seismos/24hr-PGC.LHZ.shtml
>
>
You know what, George? That's not of the N. Cal 7. It's at the
wrong time. Using the method I described earlier today I've
determined that this plot is of the 6.8 in the Aleutions at
17:10:17 UTC today (2005-06-14).
http://earthquake.usgs.gov/eqinthenews/2005/uszhcb/
George
"Skywise" <in...@oblivion.nothing.com> wrote in message
news:11avdnc...@corp.supernews.com...
Take a look at Mount Pierce from your second link (KMPB), or Horse Mountain
(KHMB), and the others in that area.
Skywise
news:11ave3j...@corp.supernews.com:
> " George" <geo...@wtfiswrongwithyou.com> wrote in
> news:2VNre.50992$x96.39632 @attbi_s72:
>
>> http://www.pgc.nrcan.gc.ca/seismo/seismos/24hr-PGC.LHZ.shtml
>>
>>
>
> You know what, George? That's not of the N. Cal 7. It's at the
> wrong time. Using the method I described earlier today I've
> determined that this plot is of the 6.8 in the Aleutions at
^^^^^^^^^
Make that Aleutians.
Noticed as I hit 'send'.
Skywise
news:PPOre.51416$x96.22380@attbi_s72:
<Snipola>
> Take a look at Mount Pierce from your second link (KMPB), or Horse
> Mountain (KHMB), and the others in that area.
Way ahead of ya, buddy! I'm going through all those sites and
saving the images.
George
Oops. I should have noticed that. Thanks for the correction. That one at
Rat's Island is interesting. There were several smaller ones the day before
in the same area, and they got progressively larger until the 6.8 struck.
And it is still shaking.
Damon Hill
news:lZOre.59986$nG6.31104@attbi_s22:
> Oops. I should have noticed that. Thanks for the correction. That
> one at Rat's Island is interesting. There were several smaller ones
> the day before in the same area, and they got progressively larger
> until the 6.8 struck. And it is still shaking.
The Aleutians are always 'busy', but that's stronger than usual.
Is it just coincidence that the Western Hemisphere is getting
all these strong/major earthquakes all at once? They are all
distantly separated, but still...the next few days may tell.
--Damon
Petra
If you looked at the P-103 wave charts for the Tarapaca, Chile quake
you will see it runs near Adak, so it should be considered a triggered
earthquake.
Now, due to the 7.0 at the MTJ we should look for a quakes around Java,
Indonesia and the NE side of Australia during the next two weeks.
Petra
George
"Damon Hill" <damonun...@comcast.nyet> wrote in message
news:Xns9675E53D8B393...@216.196.97.131...
Look at all the moderate to large quakes that have occurred in the last two
days around the PRF:
Also take a look at this one:
http://eqinfo.ucsd.edu/dbrecenteqs/anza/AZ_US_map.html
It looks like it may have occurred in the triple junction region.
Skywise
@o13g2000cwo.googlegroups.com:
> Damon,
>
> If you looked at the P-103 wave charts for the Tarapaca, Chile quake
> you will see it runs near Adak, so it should be considered a triggered
> earthquake.
Petra, could you elaborate on this for me? I've not heard this idea
before.
The 103 degree distance is the beginning of the p-wave shadow zone,
which extends to 140 degrees, where no direct p waves will be detected
due to refraction by the Earth's core. I don't see how this has any
relation to triggering earthquakes.
http://earthquake.usgs.gov/image_glossary/shadow_zone.html
> Now, due to the 7.0 at the MTJ we should look for a quakes around Java,
> Indonesia and the NE side of Australia during the next two weeks.
>
> Petra
>
Brian
Rex Pusser
"Petra" <petr...@hotmail.com> wrote in message
news:1118815433.5...@o13g2000cwo.googlegroups.com...
week following the solstice, then the Naias quake/mini tsunami occurred in
the week following the equinox, would it be unreasonable to predict a
massive quake in the week following the solstice which occurs tomorrow.
Looking at the cloud maps in the in the area there is currently a mass of
cloud being produced in the Bay of Bengal, which is resulting in a jetstream
which has covered the greater part of Australia for the past week. Needed
the rain, I can tell you.
Anyway, for what it's worth, I'm predicting something greater than a seven,
at the southern end of Sumatra, at about the 29th June. I'm thinking it
could be close to Krakatoa. I wouldn't like to be on Christmas Island this
time next week.
The solstice produced a vertical thrust, where the equinox produced mostly a
side slip, so perhaps this solstice will produce a vertical thrust again.
The Earth seems to be ringing like a bell lately.
Rex Pusser
Queanbeyan
Australia
David
>The solstice produced a vertical thrust, where the equinox produced mostly a
>side slip, so perhaps this solstice will produce a vertical thrust again.
>
>The Earth seems to be ringing like a bell lately.
Certainly Earth's inhabitants seem to be.
Petra
Skywise wrote:
> "Petra" <petr...@hotmail.com> wrote in news:1118815433.552996.249450
> @o13g2000cwo.googlegroups.com:
>
> > Damon,
> >
> > If you looked at the P-103 wave charts for the Tarapaca, Chile quake
> > you will see it runs near Adak, so it should be considered a triggered
> > earthquake.
>
> Petra, could you elaborate on this for me? I've not heard this idea
> before.
>
> The 103 degree distance is the beginning of the p-wave shadow zone,
> which extends to 140 degrees, where no direct p waves will be detected
> due to refraction by the Earth's core. I don't see how this has any
> relation to triggering earthquakes.
>
> http://earthquake.usgs.gov/image_glossary/shadow_zone.html
>
>
> > Now, due to the 7.0 at the MTJ we should look for a quakes around Java,
> > Indonesia and the NE side of Australia during the next two weeks.
> >
> > Petra
Brian,
It's always fun when presented with a new theory to you to explore a
little. And such is the case with Far Field Aftershock Theory. Only
look at the black lines, not in-between. The shadow zone is also 5°
on either side of those lines. Triggering occurs most often when the
wave direction is not parallel to the fault.
My area had a 4.5 quake after the Taiwan quake (6.9/7.0) in 1999 and we
had our first measurable quake in 30 years. I found that impressive.
But its a fun tool, just go with it and see where it leads you. Look
for small quakes in places that don't usually have earthquakes for
instance. As it is said, "there are more things than in heaven and
earth." And so is the case with earthquake prediction. It is vast and
wide and ever so fascinating! You know.
Petra
Skywise
news:1119417822.9...@g44g2000cwa.googlegroups.com:
OK, just to make sure I'm understanding...
When there's a largish quake, look at areas in and close to the p-wave
shadow zone for new large quakes in the near future? Is there a time
frame? Like weeks, months?
don...@sbcglobal.net
Based on what I was told by those who developed the theory the time
period is about 1 to 10 days. There will be a lull until about the
29th day which again has the possibility of triggering a quake. The
problem and it is big problem is that you don't know the location of
the triggered quake before the quake is triggered, so in that sense it
isn't very good for quake prediction.
One thing that has been noted is that quakes occurring in the area
south of New Zealand tend to trigger quakes in the Southern California.
Quakes in Taiwan tend to trigger quakes in the Northern California
area. I don't look for FFAs for a quake less then M>7.5. Even then
it isn't a sure thing.
It is a working theory to a certain extent, but still has a long way to
go to be proven. Don in creepy town
elielilly@.lilly.lilly
Perhaps today would be a good day for an earthquake with the earth at aphelion
and the moon being full.
Skywise
@g14g2000cwa.googlegroups.com:
Thanks, Don. This is a very interesting idea. If I can remember I'm
going to go back through some of the records and see if I can find this
pattern in hindsight.
BTW, has there been any thought given to the causal nature of this
effect? Remember, correlation does not mean causation. If the idea pans
out and there is a statistically provable pattern, one has to ask, "why?"
don...@sbcglobal.net
some more I thought you might as well look at the whole bit.
0-5 degrees. This is the classical and locally triggered aftershocks
zone. Most of the aftershocks will be seen in this region.
9-10 degrees
17-19 degrees
34-36 degrees
43-45 degrees
59-61 degrees
71-73 degrees
102-196 degrees***
142-146 degrees
176-180 degrees--antipode area
*** The strongest triggering is always expected to be along the shadow
zone boundary between 102-106 degrees from the epicenter and at 142-146
degrees (the second shadow zone boundary) and near the antipode if that
region is at all seismic.
A good case of the antipode were the quakes that occurred off the coast
of Ecuador shortly after the M>9.0 Sumatra quake. The problem with the
antipode is that it has to be in an area that has quake activity. You
almost never see quakes triggered at the antipode that has never had
quake activity in the past. Also it appears that the area as to be
quite active.
Keep in mind that if you are looking at the 102 -106 degree ring it
should be from a quake of at least M>7.0 and larger. The larger the
better. I have seen some quakes triggered with lower magnitude quakes,
but I suspect those quake were just a couple of hours away from
occurring anyway. Also I don't think any quake was triggered that
wasn't already close to occurring to begin with. The FFA ring was
just enough to push it over the edge so to speak.
However I have no idea as to what the cut off point might be for when a
quake will be triggered and when it won't. So far I have never been
able to name a location with any degree of success of where the quake
might be triggered. That would require knowledge of how much stress
there is at a location and how close it is to breaking. Don in creepy
town