I was looking at the Yellowstone seismographs this evening and was looking for assistance on reading these. One I am most curious about is the Lake
Mary seismograph. Because these images are 160k each I will only display the first in the set and provide links to the next 6 if you want to look at
them. What it seems to be is alot of background noise during normal daytime hours. I assume the readings are caused by tourist activity in the area.
I could be dead wrong. It is simply a guess. The one of most interest is from the 14th. There seems to be alot of activity for a good part of the
24 hour period.
It is interesting when you compare it to this Mount St. Helens seismograph from a couple days ago. The two are completely different. The St. Helens
one shows what appears to be a great deal of rock fracturing.
Originally posted by Indy
Do you have an opinion when it comes to the April 14th one? The reason I put up a full week was for people to see how the days compared. Also to
show how 4-14 stood out from the others.
I'm not a geologist nor an expert at reading these things, but since it looks so constant over an extended period of time, it could be indicative of
other human activity, such as large vehicles or equipment movement, construction or something in the area. Or of course it could be some type of
prolonged real seismic or geothermal activity.
Rock.. from 09:00 to 18:00 or so I could agree. But what about the one day where the activity runs all night long and heavy? The pattern of activity
on the seismographs for everything else was pretty easy to pick up since it was about the same on all. It picked up during day hours and quit at
sunset. This might sound stupid but what would rain look like on a seismograph?
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