As the resident geologist, I'll evaluate the data further and let everyone know my opinion.
Great! Thanks. I am interested to see what someone with knowledge has to say.
I'll make a cup of tea and check back in a few minutes.
Oh, good! I was trying to recall who our resident geologist was! Looking forward to your report.
Boy, posting is fast today
Many threads ago I evaluated an alleged BIG earthquake off the coast of Florida that was supposed to be the result of some secret navy weapons (tinfoil time). The people who made the allegations did so on preliminary data and failed to put the whole thing into its proper perspective. Although I am not specialized in seismology, as a geologist I am familiar with what is being seen and reported. Therefore, to save tinfoil for leftovers in the fridge, here is what I was able to quickly uncover.
The suspected event occurred on July 15, 2004. The referenced seismograph recording is a station located in Palisades N.Y. (station id PAL), and is part of the Lamont-Doherty Earth Observatory Network. LDEO, it is part of a seismic network under the control/supervision of Columbia U. They seem to have a focus on researching earthquake activities in the fingerlake area of NY state. The same event was also detected on station NCB (Newcomb, NY). PAL recorded first waves at approximately 12:26 GMT, NCB at approximately 12:25 GMT. The event at both stations resulted in movement over 5 minutes in duration. Both events appear to be relatively small, especially based upon NCB data.
NOTE: the seismographic data are RAW and unevaluated and only seismologists (or the serious earthquake buff) can provide a more detailed analysis. Therefore I reviewed other EVALUATED data for the same date and time frame because I don't have the specifics for each station necessary for more detailed evaluation. EVALUATED data is based upon review by seismologists in comparison to events reported by other station nationally and worldwide.
I found that on July 15th at 12:05 GMT a 5.9 magnitude quake occurred west of Vancouver Island, British Colombia. This is approximately 20 minutes before the time the PAL and NCB events were recorded. Based upon the time relation to the Vancouver Isl event, I suspect that PAL and NCB recorded the Vancouver event. Why do I make that linkage, did I hear you ask. Primarily since it takes TIME for the seismic waves to travel through the earth from the point of the earthquake to the seismographs, just like it takes sound time to travel through the air. 20 minutes for S wave arrival would be very close to being correct given the distance between NY and Vancouver Island. Secondly, the duration of the event and the well defined S (surface) and P (compressional) wave arrivals, especially at PAL, would rule out an explosive event in the ocean. This is because the water would attenuate (weaken) the shock wave by the time it reached the ocean bottom and secondly, the S wave forms produced would not be as well defined. Finally, an explosion event is too short of duration to generate 5+ minutes of earth movement.
This also doesn’t rule out the recording of a smaller (less than 1.0) regional quake. Small quakes are often not plotted or reported.
My conclusions:
1. The writer (non-TM) of the original post had no clue what he/she was looking at other than a seismograph located in the eastern U.S. recorded a seismic event of some kind. There is no SCIENTIFIC way that based upon ONE seismograph could pinpoint an event as they had described.
2. Evaluation of the timing and arrival of the waves are typical of an earthquake-induced event, not a short-term explosive event, even a nuclear one.
3. This “evidence” does not provide “proof” of a nuclear explosion in the ocean off Boston. The most likely scenario is that the seismograph stations recorded seismic waves originating from the Vancouver Island event.