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I do not believe USGS or the partners are providing misinformation. There are too many interested parties in the professional circles that wrong information would quickly made known.
Originally posted by westcoast
On another note, I SWEAR that is still looking like more HT on the latest recordings, especially in the NE portion of the park.
[...]the source of those signals is indeed about 400 Km east from Yellowstone, and it's between TA.I23A and TA.J23A stations
Gillette is a small city centrally located in an area that is vital to the development of vast quantities of American coal, oil, and coal bed methane gas. The city calls itself the "Energy Capital of the Nation".
Originally posted by ROBL240
It wouldnt be too hard to find out what time the Mining Blasts occured, then look back at the Seismic data and see if they correspond. If not then it rules out that theory.
Delay-fired mine blasts, which consist of a series of individual shots arranged in a grid pattern and detonated in sequence, can introduce spectral modulations into recorded seismograms. We can exploit spectral modulations to separate delay-fired mine blasts from the remaining event population, which includes single- fired mine blasts and earthquakes. Here, we enhance an existing algorithm (Hedlin, 1998) for the automatic discrimination of delay-fired mine blasts. A total of seven separate discriminants are computed, based on the spectrograms of recorded events. A feature-selection procedure is used to ensure that each discriminant is significant and contributes to the overall performance of the discrimination algorithm. The effect of input parameters on the methodology is explored. The choice of input parameters is made to maximize the mean Mahalanobis distance between the earthquake and delay-fired mine-blast populations. The technique is then applied to a dataset consisting of regional earthquakes and delay-fired mine blasts recorded at a station in Wyoming. The results show that the larger delay-fired mine blasts, the cast blasts, can be identified successfully by using this technique. The smaller mine blasts are not identified with this technique, although such events are of less interest in a nuclear-monitoring perspective. In a drop-one test, 89.5% of the events studied are successfully identified. Of the events that are misclassified, one is a cast blast and seven are earthquakes. The cast blast is misclassified because of noise on one component, which biased the value of a single discriminant. The earthquakes are misclassified because of a greater variance of the seven discriminants for the mine-blast population. The results suggest that this methodology is very successful at identifying cast blasts in Wyoming, and would be an extremely useful method to use as part of an integrated set of discriminants for the identification of small-magnitude regional events.
Originally posted by Robin Marks
[...]The purity of the data argument: pure malarky. Shirakawa is a witness and knows that quakes where listed immediatley and on the weekends before the swarm of last year.
[...] The standard is that all insistutions with sieigraphs and webicorders realease all their information without any delay. There is one other except, it's a station in Alaska, Shirakawa will correct me if I'm wrong. It's arrogance to think they need to be that more precise or accountable than everyone else.
I'm sorry, but in the world the standard is that very little data ever gets publicly released. USGS volcano observatories though are unique in that they make most of the important data, even raw seismic waveforms, public.