South Dakota shaken by double seismic tremors

November 15, 2011CHADRON, Neb.A small earthquake shook areas of northwest Nebraska and southwest South Dakota but no damage was reported. The U.S. Geological Survey says the 3.7 magnitude quake happened a little before midnight Sunday along the Nebraska-South Dakota border near Ardmore, S.D. Geophysicist Don Blakeman of the National Earthquake Information Center in Golden, Colo., says a 3.7 magnitude quake is large enough to be felt but not big enough to cause any serious damage. KQSK reported that residents in Ardmore, Chadron and Crawford could feel the shaking. The radio station says one woman in Crawford reported hearing her windows rattle and feeling her bed shake. The woman says the quake lasted about 20 seconds. Geophysicist Don Blakeman of the National Earthquake Information Center in Golden, Colo., says a 3.7 magnitude quake is large enough to be felt but not big enough to cause any serious damage. The quake was followed by a second 3.3 magnitude tremor today. –The Republic
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5 Responses to South Dakota shaken by double seismic tremors

  1. kristoffer94 says:

    Okay, I’m serious

    USA is going to be ripped in two, If this continues

    Is it unusual that it is such strong earthquakes, in the middle of USA?

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  2. Irene C says:

    I almost missed seeing the one that happened today. I had see the 3.7 and when I was looking today, I only saw one incident. It wasn’t until I looked closer that I saw there was two of them. I also noticed that they were shallow; at 5 km (3.1 miles) for the 3.7 and 4.9 km (3.0 miles).

    Looking at the earthquake history of South Dakota, it appears that they do happen but are not common. And looking at the recent earthquakes in the United States, there seems to be a whole lot of shaking going on. Fascinating.

    Maranatha

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  3. Interesting that there are “hot springs” near the area of the quakes. Perhaps Yellowstone is filling it’s chamber??!!

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  4. xdrfox says:

    South Dakota, Where they are using new methods to get oil from shell, injection into wells of perhaps the same that was used in the Horizon well blowout, new live synthetics that produce high volumes of CO2 and makes the oil flow from areas in rock before could not !
    Not nice to fool with Mother Nature !

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  5. Amy says:

    I am from western Nebraska and also lived in Hot Springs, SD. I remember feeling a quake in high school over 25 years ago and never known of others so they are RARE. I hope Yellowstone isn’t waking up more. Last time it blew it left 12 feet of ashes over western Nebraska!

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