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Yeah, I'm around, but working a lot lately so I really am monitoring lately overnight.
We have ANOTHER swarm now, with it being centered around the area of the posted 2.8 quake.
It is still fidgeting, but at the time of this post, gone into a lull.
There is no harmonic anything at Yellowstone, unless the birds decide to chirp in harmony.
Anyone reading this, please- don't use the word harmonic unless:
A. You really know what it means as applied to that type of tremor, and
B. You have the means of differentiating any such signal from other seismicity. Because unless you are a schooled seismologist AND volcanologist, you are going to have a real tough time even trying to claim such from just a waveform on a webicorder. It just makes you look stupid to post anything of the sort. If you suspect any kind of tremor at all, then best just ask. A couple of us around here DO have that means, and believe me, if I ever suspected harmonic tremor at YS, I wouldn't be sitting here posting about it at first. I'd be on the phone with scientists, even at 3 am, their time.
I'm sorry, I don't mean to sound like a condescending know it all, because I don't know it all. I know very little. But what little I do know was enough to write that above, and mean it. I spend literally ever night of my life just about watching incoming raw data from YS and other places.
Like what always happens on weekends and late nights, they are posting the biggest event of the sequence first, and the rest will be backfilled later. The problem with that of course is that until they do, no one knows that it is a swarm, and just appears as one little quake for now. No one except for the people paying real close attention with the right tools, that is.