A forum for discussions and posts about volcanoes, supervolcanoes, and Large Igneous Provinces (LIP). This forum is open to SpectroNet Members and the general public.
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In the last few days Yellowstone experienced a small swarm of earthquakes. From what we saw on our SpectroNet Live Seismic Monitor (member only access), there were many more earthquakes than what the USGS has reported so far. This is mostly because the rest were below 2.5 magnitude. They have reported the two largest ones, a 2.7 and 2.4 as shown below:Thankfully the quakes were not near either of the two resurgent domes that Scott has discussed with us before, as you can see in the following pic: Much like so many times before,the swarm seems to have died down quickly. But it's in a new area so it bears watching!
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Given the low magnitudes of the quakes involved, they are most likely tectonic quakes, not associated really with the volcanic system. At least, for the moment that's the way they appear, although Yellowstone is a tricky monster. It bears watching because it may be the start of a larger swarm, which can manifest itself days or even weeks later. That said, so far.... not much of nothing. This small swarm came and went it appears, like so many others before it.