Another Earthquake

[JVShocker]

10:53 pm. Small rumble and shake....was there a tiny one just now?

[NCAABound]

There was another smaller one

[1979Shocker]

KGS is now showing it on there website as a 3.9.

However, they are showing it centered about 1/4 mile east of Greenwich Road and 1/4 mile South of Central.

Magnitude wise KGS and USGS seem to always vary a few miles in location. Not sure why that is.

My colleague at work said she felt the quake in Rose Hill.

The USGS recorded it at 5:04:44 AM, while the KGS recorded it at 5:04:43 AM, so basically the same earthquake, yet the epicenters were around 2.5 miles apart. Is that possible?

[1979Shocker]

One that struck in Croatia yesterday - not sure if it was the main one or an aftershock - was caught on camera in the video below -

I wonder if KWCH captured something this morning on their cameras on their early morning news. I checked their site and they had a story only so maybe there's no video.

You can see it shake a little bit in their newsroom in the video here.

Magnitude-3.9 earthquake wakes up Wichita (kwch.com)

[WstateU]

It sure rustled my jimmies...

[1979Shocker]

I was already awake when I felt it. It started out as a low rumbling sound, then my house started to shake. This all happened within a 2 to 3 second period.

Using Google Maps, a straight line from my location to the earthquake location (Rock Rd and Polo Dr) is about 6.6 km. That comes out to around 8.3 km from my location to the epicenter 5 km below.

[1979Shocker]

By far the strongest one I've felt at 13th & Greenwich. If a 3.9 is that much stronger than a 3.7...I'd hate to experience something in the fours centered so close.

According to the Richter magnitude scale - Wikipedia, "...each increase of 0.2 corresponds to approximately a doubling of the energy released."

[C0|dB|00ded]

Holy Crap. Maybe the biggest shake yet at my house. 5:05 am, Wednesday morning. Loudest and longest shake. I could do without that.

Woke me up too. All the handles on my dressers were rattling. When it wakes you up on memory foam, you know **** is shakin' hard.

[capnkirk]

13th & Greenwich. The first one woke me. It actually shook a couple of pictures off the wall(never had that happen before). I heard the much smaller second quake as well....

[Ted Lasso's Neighbor]

I was at the web site for the Sunflower and saw they had an article a couple weeks ago where they interviewed William Parcell, WSU’s Geology Department Chair - https://thesunflower.com/53885/news/...s-earthquakes/ - and this part was interesting:

Although we likely will not know the exact cause of Wichita’s earthquakes, Parcell believes that because of the amount of wastewater injected into Southern Kansas and Northern Oklahoma wells, it is likely that this is the cause for the recent earthquakes.

“What we do know is that from Wichita going North East towards Kansas City and up into Iowa, there is a large buried fault system throughout there,” Parcell said.

Parcell said that over time, the water injected into these wells has spread underground and is now disrupting faults that run close to Sedgwick County.

“There were studies in the past couple of years that showed that those injection wells down in Northern Oklahoma and Southern Kansas, that the water they injected didn’t stay put, it started to move out along these deep layers underground,” Parcell said. “As it moves out, it changes the pressure in other places, and it is possible that it may be connected.”

The investigation done a couple weeks ago basically just said drilling and disposal hadn't changed, but maybe there are issues with the water still not staying put. We also had a dry summer and fall, so the rain yesterday could have soaked in quite a bit if there are deep drought cracks. Anything over 3.5 triggers an investigation by the state, so it'll be interesting to see what they say.

[SB Shock]

By far the strongest one I've felt at 13th & Greenwich. If a 3.9 is that much stronger than a 3.7...I'd hate to experience something in the fours centered so close.

Each whole number step up in magnitude increase the energy released by a factor of 31. So going from 3 to 4, is 31x more energy released. 3 to 5 is 961x more energy released.

[atlwsu]

Is Wichita going to continue to have these small quakes, is there any sense that they will either diminish or get worse?

[ShockerDropOut]

I live between Towanda and Potwin and felt the one at 5:05. It rattled d the house and shook pretty good. It seemed to last a while and I could hear it. First one I have felt in a while, but it was pretty good sized.

[Ted Lasso's Neighbor]

I wonder if the one this morning is more of a "frost quake" type than a regular earthquake. Here's a short video on what those are - https://abcnews.go.com/US/video/frost-quake-60730929 - but basically all the rain we had yesterday gets down in the ground and then a freeze expands the ground. We're suppose to get 3 - 6 inches of snow on Friday, so if there are more quakes over the weekend they may be weather related.

Or it could all be related to the outdoor ice rink at the Chicken N Pickle at 13th and Greenwich since the quakes started happening shortly after it opened - maybe Mother Nature doesn't like a skating rink there and is determined to crack it and destroy it :)

[WstateU]

One that struck in Croatia yesterday - not sure if it was the main one or an aftershock - was caught on camera in the video below -

I wonder if KWCH captured something this morning on their cameras on their early morning news. I checked their site and they had a story only so maybe there's no video.

Yipes Stripes Beechnut Gum!