Small Yellowstone Swarm Is Between Resurgent Domes

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SheilaH
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Small Yellowstone Swarm Is Between Resurgent Domes

Post by SheilaH » Tue Jan 01, 2019 3:21 am

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:
YS swarm 12-30-18.jpg
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:
14HotSpotTrack.png
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! :shock:
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Re: Small Yellowstone Swarm Is Between Resurgent Domes

Post by LoriWinters » Wed Jan 02, 2019 7:17 pm

thank you sheila

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Re: Small Yellowstone Swarm Is Between Resurgent Domes

Post by KathrynDoherty » Wed Jan 02, 2019 10:00 pm

Thank you Sheila

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Re: Small Yellowstone Swarm Is Between Resurgent Domes

Post by ScottTodd » Mon Jan 07, 2019 2:12 pm

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.

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