Didn't feel anything here in central OKC. I'm pretty sure it'll take a 5.0+ for me to feel even a slight jostle lol.

It was a big one at my house. I wasn't home but when I arrived around 1 pm the usual stuff was displaced, which happens only with the strongest quakes. Epi was supposedly about a mile north of my place. There were subsequent rumblings throughout the afternoon.

I'm in NW OKC and didn't notice a thing.

Saturday, 7/12, was quite an active day, perhaps to an unusual extent, for quakes in the Langston-Guthrie area. At least 7 of them happened over the magnitude of 2.0.

I'm in NW OKC and didn't notice a thing.

You likely won't notice them if you have noise going on like the TV or radio. The sudden, brief thundering, rumbling crash sound they make usually startles me more than the jolt or two they make. The quakes under 3.0 usually don't travel very far.

I seem to always notice them if I'm at home. Sometimes I wonder if it's because I have a basement? I'm definitely not the most observant person in the world...

You likely won't notice them if you have noise going on like the TV or radio. The sudden, brief thundering, rumbling crash sound they make usually startles me more than the jolt or two they make. The quakes under 3.0 usually don't travel very far.

I didn't have any of those things going on and still didn't hear or feel anything.

Saturday, 7/12, was quite an active day, perhaps to an unusual extent, for quakes in the Langston-Guthrie area. At least 7 of them happened over the magnitude of 2.0.

It would be interesting to find out if these EQ's are happening more often when the Moon is closest to the Earth?

I never notice them, but I'm on the far NW side of OKC. The last one I felt was that one around 11:30pm in November a couple years ago. I was standing alone in my living room and noticed things shaking. My friends outside didn't notice or hear it at all.

The only way I know they're even happening is the freak-outs on Facebook and the news.

The only way I know they're even happening is the freak-outs on Facebook and the news.

News 9 has even started putting up a Breaking News Box on the bottom left side of their Channel whenever there is a "jolt." I'll have to snap a pic of it next time I see it. But hey, I guess News 9 shook things up a bit when they picked up JoJo.

I seem to always notice them if I'm at home. Sometimes I wonder if it's because I have a basement? I'm definitely not the most observant person in the world...

That's pretty likely, actually. You notice them more on the upper floors of buildings than you do on the ground floor. In your case, the fact that your ground floor has some bounce to it as opposed to if it were on a slab magnifies the jolt. You're effectively on the second story of your house if you have a basement.

That's pretty likely, actually. You notice them more on the upper floors of buildings than you do on the ground floor. In your case, the fact that your ground floor has some bounce to it as opposed to if it were on a slab magnifies the jolt. You're effectively on the second story of your house if you have a basement.

My neighbor, downstairs, said she didn't feel a thing, neither did anyone laying out at the pool. But, my upstairs neighbor and I sure did. So, it must be true.

^^^^^^^

I used to feel them all of the time when I officed on the third floor of a building in Bricktown, have not felt a single one at work since moving to canal (basement) level. My office manager noticed one a few weeks ago when I wasn't I the office, but it was a relatively big one. When at home, I have only noticed them while upstairs. Could be why so many people never notice them; they might only live/work on ground level. Also people who don't usually experience them might spend most of their time in structures that are relatively isolated from the surrounding terrain (lots of sand in the underlying soil, for instance).

It would be interesting to explore, actually; for those of you who have experienced/noticed a lot of the earthquakes, were you usually on a ground floor or on an upper level of your home or office?

^^^^^^^
It would be interesting to explore, actually; for those of you who have experienced/noticed a lot of the earthquakes, were you usually on a ground floor or on an upper level of your home or office?

I've experienced them from three different levels of our house in NW OKC near I-44 and 23rd Street. In 2011 when the big one happened, we were in the den in the basement, sitting in recliners watching the news (and, incidentally, got to see how Ed Murray on News 9 responded when he was broadcasting live when it happened). It was a really strange sensation being down inside the earth when things started shaking. No objects or furniture down there rattled or moved around. It was just *us* being thumped and bumped.

Last year's fairly large one (don't remember when, but it was during the day) caught me on the ground level of the house, in the kitchen. It seemed to shake things up more than the larger one in 2011. Pots and pans hanging on a wall rack were rattling for quite a while. I remember hearing a few other noises of things being displaced. Nothing was broken, though.

This last one—yesterday—found me upstairs in the home office. Sitting at my desk I could feel a slight rocking motion. This time nothing seemed to rattle at all (even down in the kitchen, which is adjacent, so I would've heard the pots and pans if they had moved at all).

I went ahead and added earthquake insurance to our policy a few weeks ago. In our location, we're not seemingly as likely as some others to have substantial damage, but one never knows. It's got a high enough deductible that it would only cover a major damage event. Still, the peace of mind is a good thing to have.

I have been in an upstairs apartment since late 2000. I used to work outside. I never felt an EQ (in OK) until the big one in November 2011. Since then, I have felt maybe 5 or so around Hefner and Council.

Front page of CNN: Seven earthquakes shake Oklahoma in two days - CNN.com (http://www.cnn.com/2014/07/13/us/oklahoma-earthquakes/index.html?hpt=hp_t2)

Video story has a nice skyline shot.

3.9 quake up to the SW of Medford and north of Enid about 20 minutes ago now.

http://earthquake.usgs.gov/product/dyfi/usb000rsqv/us/1405323232570/usb000rsqv_ciim.jpg

Just heard some rumbling and such a couple minutes ago and it looks like it was an earthquake.

Felt it very strongly in Harrah. Woke us all up from a dead sleep and knocked several things off the top of the refrigerator.

Welp USGS just said 3.8 in Harrah.

Preferred Location ParametersParameterValueUncertaintyMagnitude3.8 mb_lg± 0.04Location35.530°N, 97.138°WNot SpecifiedDepth9.5 km± 6.8 kmNumber of Stations UsedNot SpecifiedNumber of Phases Used54Minimum Distance7.8 km (0.07°)Travel Time Residual0.49 secAzimuthal Gap27°Review StatusMANUALEvent ID

Felt that one this time.

Just felt it

Wow we just had another, super fast but it felt strong.

Chat room regular reporting pictures knocked off her wall that time.

NWS Tulsa ✔ @NWStulsa (https://twitter.com/NWStulsa)

410 am...quake felt here at WFO Tulsa. waiting for the USGS for the details. #okquake (https://twitter.com/hashtag/okquake?src=hash)

"Just" a 3.9.....thought it was bigger.
http://earthquake.usgs.gov/earthquakes/eventpage/usb000rt2i#summary

"Just" a 3.9.....thought it was bigger.
M3.9 - 8km NNE of Harrah, Oklahoma 2014-07-15 09:08:41 UTC (http://earthquake.usgs.gov/earthquakes/eventpage/usb000rt2i#summary)

Note the depth...much deeper. That probably has something to do with it.

ParameterValueUncertaintyMagnitude3.9 mb± 0.09Location35.556°N, 97.123°WNot SpecifiedDepth11.6 km± 4.4 kmNumber of Stations UsedNot SpecifiedNumber of Phases Used108Minimum Distance5.6 km (0.05°)Travel Time Residual0.94 secAzimuthal Gap18°Review StatusMANUALEvent ID

Note the depth...much deeper. That probably has something to do with it.

Parameter Value Uncertainty Magnitude 3.9 mb ± 0.09 Location 35.556°N, 97.123°W Not Specified Depth 11.6 km ± 4.4 km Number of Stations Used Not Specified Number of Phases Used 108 Minimum Distance 5.6 km (0.05°) Travel Time Residual 0.94 sec Azimuthal Gap 18° Review Status MANUAL Event ID

Twitter had people in North Texas feeling it - you are probably right.

Holy moley that was a strong one!

pretty good jolt in east Edmond. gonna guess around 3.7

Felt it near East 15th and I-35. Honestly, didn't feel that strong to me. Slight rumble up to the finish and then just a slightly more noticeable jolt. Not even enough to make me stop what I was doing.

slight but noticeable shudder at Britton and Rockwell.

3.4 7 miles north of Edmond, was a strong quick jolt here in N Edmond

Oklahoma Grapples With Earthquake Spike?And Evidence of Industry's Role (http://news.nationalgeographic.com/energy/2014/07/140731-oklahoma-earthquake-spike-wastewater-injection/)

Another article. They were correct in not blaming fracking, but on waste water disposal.

Oklahoma Grapples With Earthquake Spike?And Evidence of Industry's Role (http://news.nationalgeographic.com/energy/2014/07/140731-oklahoma-earthquake-spike-wastewater-injection/)

Another article. They were correct in not blaming fracking, but on waste water disposal.

There is a thread in the politics section for that kind of article.

http://www.okctalk.com/politics/38312-political-discussion-oklahoma-earthquakes.html

Well that was a big one...

They are calling a 3.3 just east of Edmond.

The epicenter for this one was slightly less than a mile from my house. I have a question and I'm not wanting this to be political, but I live one mile East of Frontier City and there has been little (almost none) oil exploration over here. There are a few pumps running that have been here for years. I live about a half mile South of Arcadia lake. How does "fracking" have anything to do with all of the quakes that I have experienced? Or, has the lake caused the increase in the number of quakes?
C. T.

Updated chart image...I'll get the table in the thread updated soon.

http://www.weatherspotlight.com/screencap/2014-aug/quakes.png

Table updated. August so far is coming in as the 2nd slowest month of the year for quakes in the state. Of course that can all change.

Table updated. August so far is coming in as the 2nd slowest month of the year for quakes in the state. Of course that can all change.

It's building up :tongue:

Nibiru sure is pulling on our crust.

Big shake in Edmond just now... one of the biggest I've felt.

Felt it very big in downtown OKC.

7:44 AM NW OKC. Another one.

That was a nice little rattle.

Shook the building hard in the capital complex.

It woke me up...

:(

4.2 ssw of guthrie.

M4.2 - 7km SSW of Guthrie, Oklahoma 2014-08-19 12:41:35 UTC (http://earthquake.usgs.gov/earthquakes/eventpage/usb000s45z#summary)

Nothing here in Norman. Thought it'd woken me up since I snapped awake earlier than normal today but the timing doesn't align. The soil in my neighborhood must be rock solid and unshakable lol.

How long did it last? A second or two?

it went for a good 15 seconds or so at my house in nw edmond. pretty hard shakeing.

Is there a thread for the Napa earthquake? Friend of mine lives in Sonoma, 9 miles from the epicenter. She and her husband are out of town this weekend and the 70 year old neighbor watching their house says it is a wreck and she can't "remember" if she unplugged anything, including the big screen that got thrown across the room. My friend is freaked out because she has no idea what damage occurred and is worried about electrical fires.

Is there a thread for the Napa earthquake? Friend of mine lives in Sonoma, 9 miles from the epicenter. She and her husband are out of town this weekend and the 70 year old neighbor watching their house says it is a wreck and she can't "remember" if she unplugged anything, including the big screen that got thrown across the room. My friend is freaked out because she has no idea what damage occurred and is worried about electrical fires.

There isn't, but feel free to start a new thread on it. This one is already pretty extensive with our own (unlike the volcano thread which was very short).

USGS: Odds of major ?quake in Oklahoma growing, here?s why | KFOR.com (http://kfor.com/2014/08/22/usgs-odds-of-major-quake-in-oklahoma-growing-heres-why/)

Maybe subject to update, 4.1 earthquake west of Stillwater at 9:41 am. OGS has it at 3.8. It was definitely felt and heard in Stillwater for several seconds. It was different for sounding like a sudden high gust of wind, rather than like distant thunder. It was definitely a stronger than usual Stillwater area earthquake as well as for Oklahoma.

https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/10647198_710224919026201_3725096822609863310_n.jpg ?oh=a919b4218e8ca0555591ab54f7902d62&oe=548E0B02&__gda__=1419447774_3b3e228f76fa7e0b053c4c69354b179 7

I was on a conference call with a few folks in the Tulsa area, one mentioned it, she was working at home, the others in the office in Tulsa didn't feel it, but thought it was strange to have felt it all the way up there.

After a lull, earthquake activity has been picking up the pace. Medford area is still a hot spot where a 4.0 quake happened Thursday night, 9/18/14. Wednesday in Oklahoma had a dozen quakes over 2.0. Between Guthrie and Edmond remains active. The area northeast of Stillwater has become more active. The area southeast of Stillwater is in a lull. The newest hot spot is just to the south of Perry. A renewed lull is welcomed to set in anytime.

Looks like we have a pair of quakes on going. One happened about 15 minutes ago north of Edmond was a 3.6 and a 2nd is just winding down. Looks to be low 3s. UPDATE: 2nd was a 3.3 so not far off. :)

4.4 quake just over the line in Harper KS

http://earthquake.usgs.gov/product/dyfi/usb000si7g/us/1412274016585/usb000si7g_ciim.jpg#usemap=imap_base