Earthquakes? In Oklahoma? It's more likely than you think.


38 Responses to “Earthquakes? In Oklahoma? It's more likely than you think.”

  1. Drowse says:

    I was so not paying attention yesterday morning when this EQ happened.. I must have had not enough coffee.. (Location: 40 mi north of Dallas)

    Also as a side note, the range that the Arbuckle Mts in southern OK and Ozarks in AR are part of is actually part of the formation of a range that stretched from the Big Bend of Texas to the Appalacian Mts in the East..

  2. elfspice says:

    i don’t remember the full details of what causes them, i’m guessing they are something like the craqueleur on paintwork, which you can often see major, wider, usually much longer cracks and then in between them smaller crack patterns that usually have further sub-cracks etc etc, fractal-like. but anyway, we had one in australia in newcastle some years back, and i read an article in a magazine about it and they referred to the geographic features that signify the presence of these sub-faults as ‘killer hills’

  3. Anonymous says:

    Yeah, Wordisbond, I see your new earthquake on the USGS map, and your earthquakes are getting bigger. What are you “guys” in Guy doin’ over there, huh? Now, don’t be gettin’ like us’ns here in California.

    I used to live in Kansas as a kid. Sure do miss it.

  4. CheshireKitty says:

    My NaNoWriMo partner/rival lives in OK and told me it felt like her cat had jumped up on her bed.

    She’s still going to clean my clock come November! ;D

  5. Anonymous says:

    Central AR has been shaking like crazy past few days. The entire New Madrid system is about to completely come apart. Expect a 7.5+ magnitude quake in NM fault zone in the coming weeks or months.

  6. briefer says:

    I know a doctor in Oklahoma who was doing brain surgery when it happened. Rattled instruments all over the operating room.

  7. laureltree says:

    I can’t believe our small town earthquake made it to BoingBoing! I was sitting in the Oklahoma University Library, where I work, when it hit and a few books shifted but that was it. I’m from Oakland and I just got used to earthquakes, but having one that was noticeable in Oklahoma was pretty exciting! I have friends and family who felt it almost 100 miles away from its point of origin!

  8. Anonymous says:

    I was six miles from the epicenter and I didn’t feel a thing! Major bummer …

  9. Anonymous says:

    Cosmicautumn, we just need a rain of frogs and I think we’re set.

  10. Anonymous says:

    Will this activity affect the Ogallala Aquifer?

  11. skatanic says:

    I live in Norman and go to school here. I was in the shower when a heard something like a loud truck go by. I had no idea anything unusual had happened until i checked facebook and saw everyone talking about earthquakes.

  12. hacky says:

    His in-laws are wise to get earthquake insurance. Tuttle creek dam, (the shadow of which i cower in, too) was for some reason built mere furlongs from a fault line. it goes, manhattan and jc are through.

  13. Anonymous says:

    I live in West Virginia, not known for earthquakes, and we’ve been having more lately also. The only earthquake I’ve ever felt was in the late 1970s, and I was driving across the Kanawha River on a bridge. I thought a tow-boat had run a string of barges into a bridge support, but not. 3ish on the scale, located 20 or 30 miles east of Charleston, where I was crossing the bridge.

    My wife and I think many of the recent earthquakes reported here are from mining activities, either huge blasts at mountain top removal strip mines or huge roof falls in underground long-wall mining operations. To muddy the water a bit, there’s also a lot of drilling and fracking going on in WV’s hundred-year-old oil patch, which could be lubricating faults.

    My one-time boss was driving home on the interstate in CA during the Loma Linda quake and said he saw huge waves in the concrete roadway coming toward him, and jammed on the brakes before they reached him. He decided to move back to WV that very instant, he said.

    Scary, very scary to think of a huge ‘quake in the central region of North America.

  14. Anonymous says:

    Hydraulic fracturing. If you don’t know what that is, look it up. Better yet, see the documentary “Gasland.” Fracking may be what’s triggering the earthquakes. It’s certainly what’s poisoning the water supply in 34 states.

  15. pushmonk says:

    I live in Norman, in the second floor of a house built in the 40′s, so it’s nice and unstable. I had tied one on the night before, and had been passed out for about four hours when it hit. Woke me right up. The whole place shook. I was still drunk, and very confused. Figured it must have been a quake, since there was no sound of an explosion, rolled over and went back to sleep. Fun stuff.

  16. Anonymous says:

    Personally I think this is an ingenious marketing campaign by Blizzard for the release of their new expansion, Cataclysm.

  17. WORDISBOND says:

    I’m currently living in a pretty active earthquake zone. Two or three decent shakes a day for the last month. I haven’t managed to get used to it yet. My home-town was extremely lucky. 7.1 initial shake and no deaths. Pretty incredible when you compare it to Haiti (the same sized quake). Now I’m trying to figure out when to send in a claim for the damage to my house. Each shake makes the cracks a little bigger.

  18. Anonymous says:

    Centipedes? In MY vagina?

  19. knoxblox says:

    She’s right about the tremors traveling a longer distance in the Midwest because of solid rock. We felt a little bit of it up here in Wichita.
    Actually, the cats and I thought it was our garage door opening when it happened, and they ran to the kitchen thinking mom had come home early.

  20. Anonymous says:

    I’ve seen outcroppings of the Sandwich Fault in Illinois. Never experienced any quakes in all the time I lived there though (52-79). We were too preoccupied with tornados.

    • Anonymous says:

      #2: Don’t know where you lived in Illinois, but i can personally attest to having felt at least one temblor in 1968 while i was stationed at Great Lakes.

  21. Anonymous says:

    I was sitting in class at the U. of Oklahoma (Norman). It was very weird.

  22. cosmicautumn says:

    So adding this to the tennis ball sized hail, ice storm/blizzard, tornadoes, flooding…what other natural disasters is Oklahoma missing this year?

  23. KeithLM says:

    I live in a suburb north of Dallas and yesterday morning I was sitting at my desk when I noticed it shimmy ever so slightly, just enough to make my monitor move a little bit. I thought it was odd, the kind of thing that might happen if a truck drove by, but there was nothing I could tell that caused it, so I noted the time thinking it might have been a quake. According to my PC it was 9:08am. Guess I was right about what I felt.

  24. GlenBlank says:

    “somewhere between 4.3 and 4.7 on the Richter scale

    Um, no.

    As the page that link goes to notes, the 4.3 magnitude estimate uses the moment magnitude (Mw) scale; while the 4.7 estimate uses the short-period body-wave (mbLg) scale.

    Those are two different methods of estimating earthquake magnitude – and neither of them is the “Richter scale.”

    (In fact, there is no ‘Richter scale.’ The scale that Charles Richter and Beno Gutenberg developed at Caltech is actually called the Local Magnitude (Mw) scale, so named because it’s best used for estimating nearby earthquakes in California. But everybody calls it “the Richter Scale”, so we’ll live with that.)

    Reporting agencies will usually identify the scale used for the magnitude estimate in the report (usually noted as “magnitude type” or “M type”).

    The USGS generally reports moment magnitude (Mw) estimates, though they will sometimes still use Local (“Richter”) magnitudes in early reports of of small-to-moderate quakes, especially in California. (The Local Magnitude scale is inaccurate at larger magnitudes, and is specific to geological conditions in California)

    The short-period body-wave (mbLg) scale was developed to provide more refined measurements of moderate-size quakes in the Central US, and has been adapted to other regions around the world.

    All these scales are calibrated to yield very close to the same numbers within their applicable ranges; though as in this case, some discrepancies still arise.

    [Oh, and earthquakes in Oklahoma are not more likely than I think, because my estimate of the likelihood of earthquakes in Oklahoma is not what you think. :-)]

  25. mercator says:

    Has anyone blamed it on teh gays yet?

  26. JonStewartMill says:

    Every time I hear about seismic activity in the midwestern US, it makes me think of the classic SF story “The Great Nebraska Sea”.

  27. macmichael says:

    These stories always make me wonder what the building code is like in the Midwest. In California, we have certain standards, but is it something that’s even thought about in the Midwest? Not that I’m suggesting the Midwest doesn’t have standards, rather standards specifically related to earthquakes.

    • Maggie Koerth-Baker says:

      We have building codes, of course, but my understanding is that damn near nothing out here is built to earthquake-resistant standards. That’s always been the concern I’ve seen when people talk about the New Madrid fault. If we got a really big one, we’d have a lot more death and property damage because nothing is built to withstand much of anything.

      So, yeah.

    • GlenBlank says:

      In fact, some building codes may even contribute to the damage – many codes in the cities of the Eastern seaboard and the Midwest are reactions to the great urban conflagrations of the 19th and early 20th century.

      Their emphasis on fireproof materials resulted in densely built urban cores featuring a great many multistory unreinforced masonry buildings. In a serious earthquake, you really don’t want to be to be in or near multistory unreinforced masonry buildings.

      There’s a reason so much of LA is built of one- and two-story buildings of lightweight timber and stucco construction. People saw the horrifying damage the 1933 Long Beach quake did to the brick buildings of Long Beach and Compton, and the unreinforced cast concrete that had recently become popular for use in schools and civic buildings.

      So, low-rise stucco it is. It contributes to LA’s sprawling and ephemeral character, and its dearth of stately architecture; but at least it doesn’t fall down and kill you in an earthquake.

  28. okiedokie says:

    I heard that the quake was upgraded to 5.1, thus correcting all the bugs that were found in earthquake 5.0.

  29. Antinous / Moderator says:

    I’ve lived within 10 miles of the San Andreas since 1977. You get used to them.

  30. Anonymous says:

    @ anon, #11: Evidence? Please cite some peer-reviewed findings, or at least some reputable earthquake labs, before consulting your crystal ball. KTHXBYE.

  31. WORDISBOND says:

    Had another 4.6 about half an hour ago. Walking down to the local bar for a pint when the ground started moving and the sound of the houses shaking hit. Ran the few blocks home to see if the family got woken up. Son slept through it. All good.

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