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Originally posted by prophetboy12
reply to post by mark1167
These are not after shocks. This major movement is foreshocks. I have never seen so many eqs over 4 and over 5 in a 24 hr period.
Originally posted by yourmaker
Why are the quakes there so shallow compared to the rest of the world?
a quick look shows these quakes anywhere from 8.2km to 47km deep yet in other parts of the world they are hundreds of km deep
what kinds of implications does a shallow quake have over the deeper ones?
I could be wrong here but I remember reading the more shallow the quake is the more damage there is most time
Originally posted by MonkeyFishFrog
reply to post by Trillium
Trillium, are these earthquakes following a similar pattern to what was seen in japan before the 9.0?
Originally posted by MonkeyFishFrog
reply to post by Trillium
No worries. I am referring back to my textbook right now from my Geo class last year but is only so helpful when trying to apply it to real world events. I found the Japan Quake Map which has been helpful... there are similarities but lots of differences between the two events which has me a little relieved and optimistic that the 7.7 might have been the "big one" for this event.
Originally posted by MonkeyFishFrog
reply to post by Trillium
No worries. I am referring back to my textbook right now from my Geo class last year but is only so helpful when trying to apply it to real world events. I found the Japan Quake Map which has been helpful... there are similarities but lots of differences between the two events which has me a little relieved and optimistic that the 7.7 might have been the "big one" for this event.
Originally posted by miner49r
reply to post by gnosticagnostic
I am not an expert, but the deeper shifting indicates that the plate is beginning to to settle in along it's vertical axis at its lower levels. With all the shallow movement we have seen it stands to reason that the deeper sections of the plate will need to adjust to fit it's news position.
I don't think this is indicative of more shallow events to occur. It stands to reason that with the amount of horizontal movement we have seen in the strike slip event, there will indeed be more aftershocks in the shallower regions.
At this point I will say what is on everyones mind... Could this be a foreshock event? The honest answer is I don't think anyone has a scientific answer to that. If this event follows suit with most other events then it will gradually begin to settle into place. Although with the new movement it is at best a wild guess and pop-shot as to how this will effect the Cascadia Subduction Zone and the new loads or the release of loading.
The only real and best answer is to be prepared for such an event (CSZ) should it occur.