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I felt weird and shaky in my chair just now, but very slightly. It might be me, a spell of dizziness (for some reason) but just in case I actually felt a tremor, like before, and I was right,
This occurred a about a minute and-so ago, 1130'ish pm US Central. I'm still feeling off kilter, and now, my cat is suddenly acting up.
Originally posted by wasobservingquietly
Could the Samoa quake & the Tonga quake be the same one? Gratuitous quake question!!!
Originally posted by muzzy
Magnitude: 7.0 (Mwp)
Depth: 227 km
Tsunamigenic: Not available
Date and Time:UTC: 08 November 2011 @ 02:59:08
Location Coordinates: 27.100, 125.900
Last updated: 08 November 2011 @ 14:11:52 (AEST)
Solution finalised: No
Northeast of Taiwan.
Magnitude: 6.9 (Mb)
Depth: 209 km
Tsunamigenic: Not available
Date and Time
UTC: 08 November 2011 @ 02:59:07
AEST: 08 November 2011 @ 13:59:07
Coordinates: 27.291, 125.868
Last updated: 09 November 2011 @ 10:52:49 (AEST)
Solution finalised: Yes
This event has been reviewed by a seismologist.
Date-Time Thursday, November 10, 2011 at 04:27:45 UTC Wednesday, November 09, 2011 at 09:27:45PM at epicenter Time of Earthquakein otherTimeZones
Location 39.284°N, 111.132°W
Depth 0.1 km (~0.1 mile) (poorly constrained)
Distances 9 km (6 miles) NW (314°) from Orangeville, UT 12 km (8 miles) NW (308°) from Castle Dale, UT 15 km (9 miles) WSW (250°) from Huntington, UT 45 km (28 miles) SW (219°) from Price, UT 116 km (72 miles) SSE (157°) from Provo, UT 176 km (109 miles) SSE (158°) from Salt Lake City, UT
Location Uncertainty horizontal+/- 0.9km (0.6miles);depth +/- 1.9km (1.2miles)
Parameters NST= 48, Nph= 48, Dmin=5 km, Rmss=0.6 sec, Gp= 43°, M-type=local magnitude (ML), Version=2
Source University of Utah SeismographStations
Event ID uu00008427
you can see that it is not entirely volcanic but tectonic by twisting of the plates at the boundary of the plates,so....that is very ugly if this region can have a domino effect for the entire region!!!
Ml=4.6 , Depth 17Km
173Km WNW of Athens
265Km SSW of Thessaloniki
Originally posted by berkeleygal
I have been trying to think of a good analogy for how I picture our continent. Even saying that, I realize my view is still narrow, because I am limiting myself largely to the continental US, vs the North American Continent....but baby steps. Anyways.....I'm struggling to put my thoughts into cohesive words, but I will give it a try (for you!)
Imagine a piece of clay. You know, that nice grey kind that you used in school to make those lopsided cups and ashtrays back when they were still fashionable table pieces. So....take a nice chunk of it and roll it out so it is more or less of even density and a flat oval roughly the shape of the states. Now...imagine taking a knife and scouring a line from top to bottom...a little off-center to the right. Don't go quite all the way through, but a little over half-way. Do the same thing to the left edge (about where the san-andreas would be)
Here is the tricky part. lay it on a table. Hold the right side with your hand, or place something solid up against it so it won't move. Take a ruler (or something similar) and shove it up under the whole left edge of clay...about a 10th of the way in or so, also pushing up. What happens?
Ofcourse..this is a very rough analogy. To make it more accurate you would also pile some more clay on top where the mountain ranges are, you would draw several thousand more 'cracks' to represent the other known major faults. Then there are areas of greater and less depth, making the surface more vulnerable to 'giving'....etc. I mean, you could get really intricate, but my main point here is to keep to the basics and greatest forces at work.
When I think of the stress placed on the North American Continent by the Pacific Plate, it's got to be great. Enough to form the Cascades. I'm sorry, but that doesn't happen without having an affect on the rest of the landmass. I don't care if there are mountain ranges, rivers, etc. in-between. What do you think caused those mountain ranges, if not from Glaciers? Plate tectonics, volcanics.
So this is what I am thinking when I try to take in the possible scenario of these odd quakes being connected. Going back to my analogy, what would happen to the New madrid when enough force was placed on the landmass to the West of it? When you have something solid, with a weakened area...well, that area of weakness is going to give. Now...with these quakes we are seeing, if you were to abscribe to this theory, you would have to understand that these could be evidence of small amounts of energy being displaced and transfered. Our continent is riddled with faults, all results of said stress. Why is it so far-fetched to then think that the quakes on the East Coast, could be indicators of stress being placed on the West Coast? And that perhaps the greates area of weakness (other than the San Andreas) is the New Madrid?