Oklahoma Earthquake Activity

[venture]

Updated the Google Map with everything: Oklahoma Earthquakes 2010 - Google Maps

It is pretty interesting that a couple of the quakes/aftershocks occurred as far north as Mulhall. That would put them pretty close to the Nemaha Fault area which really hasn't been all that active - at least that area. For all we know all these faults are connected so it is essentially the same system.

One thing that is interesting is the amount of activity all the new recording devices are able to pick up on. It makes you wonder how much has been missed in the past.

Here is a screenshot I took from Google Earth showing all the marks. I really don't like the text over everything, but oh well.

Scale is...Light Blue - M1.9 or less, Dark Blue - M2.0 to 2.9, Green - M3.0 to 3.9, and Yellow is 4.0 to 4.9.
The colored lines are the major faults that I added to the map...well the ones that I could find a reference map. Currently nothing exists for the ones where the majority of quakes are occurring.

[SkyWestOKC]

I am not a big tracker of earthquakes and stuff. I have a quick question: magnitudes are based on exponents instead of relatively, correct? For example, a magnitude 3 quake is a 1.0 magnitude x 10^3 correct?

It is not based on a mag 3 being just 3 times larger? Is this correct?

[venture]

Magnitude
3.0
Date-Time
Monday, April 12, 2010 at 04:04:48 UTC
Sunday, April 11, 2010 at 11:04:48 PM at epicenter
Time of Earthquake in other Time Zones
Location
35.596°N, 97.112°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
10 km (6 miles) SE (135°) from Luther, OK
11 km (7 miles) SSW (203°) from Wellston, OK
14 km (8 miles) SW (223°) from Warwick, OK
32 km (20 miles) NNW (330°) from Shawnee, OK
40 km (25 miles) ENE (72°) from Oklahoma City, OK
312 km (194 miles) N (355°) from Dallas, TX
Location Uncertainty
horizontal +/- 6.1 km (3.8 miles); depth fixed by location program
Parameters
NST= 17, Nph= 17, Dmin=45.3 km, Rmss=0.88 sec, Gp= 76°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6
Source
USGS NEIC (WDCS-D)
Event ID
us2010uzai

[PennyQuilts]

What's going on up there?

[Thunder]

What's going on up there?

Just some more shakes before the ground finally open up.

[venture]

Magnitude
3.2
Date-Time
Thursday, April 15, 2010 at 13:22:38 UTC
Thursday, April 15, 2010 at 08:22:38 AM at epicenter
Time of Earthquake in other Time Zones
Location
34.789°N, 96.388°W
Depth
10.3 km (6.4 miles) (poorly constrained)
Region
OKLAHOMA
Distances
10 km (6 miles) SSE (168°) from Allen, OK
10 km (6 miles) WSW (240°) from Gerty, OK
19 km (12 miles) SSW (194°) from Atwood, OK
26 km (16 miles) E (84°) from Ada, OK
130 km (81 miles) SE (126°) from Oklahoma City, OK
224 km (139 miles) N (9°) from Dallas, TX
Location Uncertainty
horizontal +/- 6.6 km (4.1 miles); depth +/- 22.7 km (14.1 miles)
Parameters
NST= 24, Nph= 24, Dmin=135.9 km, Rmss=0.99 sec, Gp= 79°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=7
Source
USGS NEIC (WDCS-D)



Magnitude
3.0
Date-Time
Thursday, April 15, 2010 at 00:49:51 UTC
Wednesday, April 14, 2010 at 07:49:51 PM at epicenter
Time of Earthquake in other Time Zones
Location
34.696°N, 96.424°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
10 km (6 miles) N (358°) from Tupelo, OK
11 km (7 miles) ENE (62°) from Stonewall, OK
12 km (8 miles) NW (323°) from Centrahoma, OK
24 km (15 miles) ESE (109°) from Ada, OK
134 km (83 miles) SE (131°) from Oklahoma City, OK
213 km (133 miles) N (9°) from Dallas, TX
Location Uncertainty
horizontal +/- 8.9 km (5.5 miles); depth fixed by location program
Parameters
NST= 11, Nph= 11, Dmin=137.1 km, Rmss=0.95 sec, Gp=104°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=8
Source
USGS NEIC (WDCS-D)

[JIMBO]

Venture, you haven't kept us updated. i for one, have been following your posts.

[venture]

Hasn't been anything new to report here.

[JIMBO]

Could this calm period mean we are geting ready for a big shaker?

[venture]

Could this calm period mean we are geting ready for a big shaker?

Possibly or that the pressure has been released to the point where there isn't much left.

[JIMBO]

Hope it's the latter.

[SkyWestOKC]

Was there by any chance an earthquake today on the southside?

About 10 minutes ago I heard something falling on my skylight and rolling around. I thought it may have been some seeds from the tree or something. I walked over to that part of the house and it happened again, the entire skylight and room shook. I went outside to see if a limb fell, nothing, no damage or anything. The panels of the skylight (already damaged from the hail) were shaking back and forth in their notches. I can't for the life of me figure out what happened.

[unfundedrick]

Just a reminder, for those who might not know, we do have a separate thread about earthquakes.

[Elrenogolf]

A couple big ones in Edmond tonight. 3.3 at 9:37 PM and another larger one about 10 minutes later.

[Snowman]

A couple big ones in Edmond tonight. 3.3 at 9:37 PM and another larger one about 10 minutes later.

I am not sure if big is a good way to describe a 3.3, that is barely on verge a human may notice one might be happening, and even that depends on what you are doing at the time.

[SEMIweather]

Well, we had to celebrate the Chesapeake merger somehow…

[OKCRealtor]

Well, we had to celebrate the Chesapeake merger somehow…

LOL, we're back!

[Mississippi Blues]

A 4.2 at 9:46 was the “big” one.

[Elrenogolf]

So far there have been 8.

[Elrenogolf]

Another 4.4 in Edmond. I think 12 total so far. Just heard a small 13th as I was typing this.

[Pete]

Felt a pretty strong one just after 5:30 AM.

Scared the crap out of my dogs.

[Bill Robertson]

Felt a pretty strong one just after 5:30 AM.

Scared the crap out of my dogs.

I knew something made the house "pop" and the cat jumped. Now I know why.

[Bowser214]

Imagine living on the 134th of a residential skyscraper during an outbreak
Of earthquakes! Sorry had to go there

[Tyson]

Knocked a bunch of frames off of my shelves last night. Both of the ones I felt were huge.

[mugofbeer]

Wait! Could the Earthquake be a new name for the baseball team?