Hi I was looking P wave from the 4.9 western indian artic ridge and was wondering what that energy means if anything? The way it falls over the west coast and the caribbean region seems omnious?? I have never seen the p wave line cross those areas like that. Any thoughts on that would be appreciated. Blessings Sara
3 posters
Question about the P wave ~4.9 western indian artic ridge
Conch23- Posts : 155
Join date : 2010-02-18
Location : Lake La
Polly, AZ- Posts : 241
Join date : 2010-02-17
Location : Sedona, AZ
Hi Sara, I was hoping that Don would answer this for you. You might want to send out a question to him on the Personal board . I follow them, but can't answer your question. Good Luck!Conch23 wrote:Hi I was looking P wave from the 4.9 western indian artic ridge and was wondering what that energy means if anything? The way it falls over the west coast and the caribbean region seems omnious?? I have never seen the p wave line cross those areas like that. Any thoughts on that would be appreciated. Blessings Sara
Conch23- Posts : 155
Join date : 2010-02-18
Location : Lake La
- Post n°3
Re: Question about the P wave ~4.9 western indian artic ridge
Conch23 Fri 26 Feb 2010, 4:03 pm
Polly, AZ wrote:Hi Sara, I was hoping that Don would answer this for you. You might want to send out a question to him on the Personal board . I follow them, but can't answer your question. Good Luck!Conch23 wrote:Hi I was looking P wave from the 4.9 western indian artic ridge and was wondering what that energy means if anything? The way it falls over the west coast and the caribbean region seems omnious?? I have never seen the p wave line cross those areas like that. Any thoughts on that would be appreciated. Blessings Sara
Thank you Polly
Petra- Posts : 44
Join date : 2010-02-18
Location : Santa Rosa, CA
- Post n°4
Re: Question about the P wave ~4.9 western indian artic ridge
Petra Sat 27 Feb 2010, 2:41 am
Hi Conch,
The theory of far field triggering essentially is for M 7.0 and greater events and while it can be whittled down a bit, a M 4.9 has no ability to trigger long distance earthquakes as it hasn't got enough energy or "push" as it were to move anything at a long distance.
Now if something is close, being regional, yes, there is a possibility, but it has to be relatively close, like within 50 miles I think at best.
Now imagine as an example if you're shoving someone with a full hand on the shoulder and the person will move, now imagine doing it with one finger. Nada. Or if a train is going down the track at a very slow speed a car on the tracks might move a little, but not off the track, but get it going at full speed and the car will be elsewhere in short order.
The best way to really understand this theory is to try and use it the way it was intended and when those big events happen, look at all of the rings and find your list of potential places, check the catalogs to find out when a quake happened there last and what magnitude ranges occur there and see what you come up with as a possibility and remember the effects last for 30 days. It's not easy to figure it out, but not horribly difficult either.
I hope this helps,
Petra
The theory of far field triggering essentially is for M 7.0 and greater events and while it can be whittled down a bit, a M 4.9 has no ability to trigger long distance earthquakes as it hasn't got enough energy or "push" as it were to move anything at a long distance.
Now if something is close, being regional, yes, there is a possibility, but it has to be relatively close, like within 50 miles I think at best.
Now imagine as an example if you're shoving someone with a full hand on the shoulder and the person will move, now imagine doing it with one finger. Nada. Or if a train is going down the track at a very slow speed a car on the tracks might move a little, but not off the track, but get it going at full speed and the car will be elsewhere in short order.
The best way to really understand this theory is to try and use it the way it was intended and when those big events happen, look at all of the rings and find your list of potential places, check the catalogs to find out when a quake happened there last and what magnitude ranges occur there and see what you come up with as a possibility and remember the effects last for 30 days. It's not easy to figure it out, but not horribly difficult either.
I hope this helps,
Petra
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