Idaho earthquake swarm just won’t stop

78 temblors. So far.

“So far Monday there have been 14 earthquakes,” says the Idaho State Journal. “They were preceded by 31 on Sunday and 33 on Saturday night. All 78 of the quakes were reported by University of Utah Seismograph Stations.”

Orange areas show epicenters of earthquakes since Saturday night in Southeast Idaho. University of Utah Seismograph Stations image

The dozens of earthquakes that have occurred since Saturday night in Southeast Idaho are unprecedented, said Bannock County Sheriff Lorin Nielsen.

“I’ve never seen anything like this,” Nielsen said. “My wife asked if we should leave the house.”

Local authorities say they cannot ever remember any earthquake swarm in Southeast Idaho that comes even close to the current series of temblors shaking the region.

I don’t know if they’re connected or not, but when you look on a larger map, you’ll see that these earthquakes are occurring about 120 miles SSE of the Yellowstone supervolcano.

See more. Plus advice as to what to do during an earthquake:

Thanks to Vance von Raab for this link


11 thoughts on “Idaho earthquake swarm just won’t stop”

  1. I noticed it also since I tend to keep a watch on the seismograms for the Yellowstone area. Call it a hobby. The question that comes to mind for the Soda creek swarm is what is putting pressure on the rocks? The seismic signature indicates rock fracturing. The quakes are happening in the basin and range area which has me thinking that it may be tectonic but since it is close to Yellowstone it has me wondering if a magma intrusion is putting pressure on the rock formations from below. The other thing that may be a factor is the Rio Grand rift fault further to the south that runs long the Rio Grand river valley and north through New Mexico , Colorado and possibly Utah. It would be interesting to know if the rift fault heads right towards the Yellowstone super volcano. Something like Iceland being a mantle plume locked on a rift fault. Mike Poland is now the head scientist at the YVO and mantle plume based volcanism is his thing. Some of you may have watched documentaries about volcanoes at Iceland and Hawaii which featured Mike Poland as one of their scientists. Well now he is watching over Yellowstone.

  2. There has to be something feeding the area. I noticed Soda Springs has a geyser. Could something be coming back to life?

  3. Would be interesting to check the heights above sea level of the survey points upon what appears to be mountain ranges over the swarm. Such regions can suffer settling quakes, especially if it is mountain ranges pushed up by ice sheets.

    • If you watch the America’s Gold episode of How the earth was made it suggests that much of the west is folded mountains made from oceanic plates or terranes and then acted on by volcanic activity including that of hot springs. It is entirely possible that all the stacking of plate segments and folded rock layers is not always welded together but is wicked with all kinds of faults and fractures that allow for movement.

  4. This is very troubling. One thing is certain, the LDS Church will know if things are about to blow. In 2015 they became the biggest landowner in Florida buying a giant chunk of the panhandle. So stay tuned on what they’re telling the Utah faithful. REALLY.

  5. I would like to add that Soda Springs is basically on the northern end of the Wasatch fault. Wasatch is considered a normal fault. I did some searching and it seems volcanoes can form along normal faults. Considering Soda Springs has a geyser, the area is located along a fault line, and there is an unusual earthquake swarm taking place, should we be alarmed? Or perhaps just cautious?

  6. I heard only one erupts on average every 100,000 years, but I have trouble imagining super volcanoes taking polite turns.

    “No, You first, Campi Flegrei. I’ll wait.”

    “Oh how kind, Toba. Greatly appreciated. Hey! Yellowstone! no cutsies!”

    With a few of them rumbling and acting strangely, what would happen should two super volcanoes erupt close together chronologically speaking?

  7. The Tetons are the youngest mountain range in N. America and are still uplifting. Quakes from this uplift are to be expected. These swarms are not necessarily connected to the hot spot that created the Yellowstone Caldara and many others.

  8. We have now had over 200 “aftershocks” as they are calling them. Some of them have shook my house worse than the initial earthquake. Any input from anyone with a better explanation then, they are “aftershocks” would be greatly appreciated!

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