View Full Version : Oklahoma Earthquake Activity



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bretthexum
02-27-2010, 04:46 PM
Just had a 4.4

Felt it in Edmond

adaniel
02-27-2010, 04:48 PM
OMG I was hoping I wasn't crazy.

I felt it too very strongly at NW Expressway and Council.

ksearls
02-27-2010, 05:25 PM
I felt it at Villa/May area! It made a really loud sound like a big truck driving down the street! Wow, weird day for Mother Earth.

Thunder
02-27-2010, 05:36 PM
Earthquake Emergency


magnitude 4.4 oklahoma
saturday, february 27, 2010 at 22:22:27 utc
magnitude 4.4
date-time saturday, february 27, 2010 at 22:22:27 (utc) - coordinated universal time
saturday, february 27, 2010 at 04:22:27 pm local time at epicenter
time of earthquake in other time zones
location 35.62n 96.76w
depth 3.8 kilometers
region oklahoma
distances 35 km (20 miles) nne of shawnee, oklahoma
60 km (40 miles) sse of stillwater, oklahoma
65 km (40 miles) ese of guthrie, oklahoma
70 km (45 miles) ene of oklahoma city, oklahoma
location uncertainty error estimate: Horizontal +/- 14.1 km; depth +/- 3.8 km
parameters nst=60, nph=60, dmin=72.2 km, rmss=1.48 sec, erho=14.1 km, erzz=3.8 km, gp=-1.0 degrees
source usgs neic (wdcs-d)
remarks mblg 4.4 (gs). Felt at davenport, eastern norman, meeker, shawnee and wilson.
Event id us2010tfe4

BAB
02-27-2010, 05:49 PM
I felt it at Villa/May area! It made a really loud sound like a big truck driving down the street! Wow, weird day for Mother Earth.

That's exactly what it felt and sounded like to me too here in MWC. I thought it was a truck at first.

kevinpate
02-27-2010, 06:28 PM
dinna notice nuttin' down here in Norman. Checked the telly; Hawaii friends seem as though they'll all be okie dokie as well.

Y'all can keep the shakin'. I don't wants it.

Bunty
02-27-2010, 06:58 PM
Some details and graph at Oklahoma Earthquake Page (http://stillwaterweather.com/okareaearthquakes.php)

venture
02-27-2010, 07:13 PM
http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010tfe4/us/us2010tfe4_ciim.jpg

Didn't feel anything in Moore during the time.

venture
02-27-2010, 07:14 PM
Here is a map I've been keeping updated on Google. Gives an idea where all the quakes so far this year have been for the state.

Oklahoma Earthquakes 2010 - Google Maps (http://maps.google.com/maps/ms?hl=e&doflg=ptm&ie=UTF8&msa=0&msid=106769263262406480646.00047ce76a8ac63919633&ll=35.621582,-96.762085&spn=3.205875,4.334106&t=h&z=8)

Bunty
02-27-2010, 07:31 PM
At 4.4, it's kinda worrisome they're still prone to increase in intensity.

jstanthrnme
02-27-2010, 10:09 PM
While I didn't feel today's quake, I sure noticed it. I was fishing at Lake Hefner, enjoying the weather, I noticed a series of waves. I was wondering what it could be, it looked like the wake of a boat, but there wasn't a passing boat. I get home from fishing, and see that there was a quake, and I put the two together. It's pretty interesting to actually see the physics of an earthquake. It was a mini-tsunami, I guess..

dismayed
02-28-2010, 01:35 PM
While I didn't feel today's quake, I sure noticed it. I was fishing at Lake Hefner, enjoying the weather, I noticed a series of waves. I was wondering what it could be, it looked like the wake of a boat, but there wasn't a passing boat. I get home from fishing, and see that there was a quake, and I put the two together. It's pretty interesting to actually see the physics of an earthquake. It was a mini-tsunami, I guess..

That's really interesting. Yeah I guess it was!

Bunty
02-28-2010, 11:56 PM
It looks like the Sparks 4.4 quake got downgraded to 4.1.

Thunder
03-01-2010, 11:54 PM
It looks like the Sparks 4.4 quake got downgraded to 4.1.

They didn't want the quake to be known as the tied 2nd strongest quake in the state. It would cause panic and concern of what will happen next, especially with the recent mega quakes oversea.

The day is getting closer, we will have a 5.0+ in the state.

venture
03-02-2010, 12:04 AM
They didn't want the quake to be known as the tied 2nd strongest quake in the state. It would cause panic and concern of what will happen next, especially with the recent mega quakes oversea.

The day is getting closer, we will have a 5.0+ in the state.

It is called being accurate. Look. I enjoy your enthusiasm that you bring to this thread and the weather thread, but it is time to pull back some. There comes a time to where posting inaccurate information for the sole purpose to get people worked up isn't very appropriate.

Thunder
03-02-2010, 12:26 AM
It is called being accurate. Look. I enjoy your enthusiasm that you bring to this thread and the weather thread, but it is time to pull back some. There comes a time to where posting inaccurate information for the sole purpose to get people worked up isn't very appropriate.

Venture, I can express my opinion as I see fit. To me, that is what I believe is the reason they scaled it back. Tell me, did they have an equipment at the exact epic center? I'm interested to know how can they determine the scale and location? They had just brought in equipments for the Jones and surrounding areas. This one was further east.

venture
03-02-2010, 12:50 AM
Venture, I can express my opinion as I see fit. To me, that is what I believe is the reason they scaled it back. Tell me, did they have an equipment at the exact epic center? I'm interested to know how can they determine the scale and location? They had just brought in equipments for the Jones and surrounding areas. This one was further east.

I have nothing wrong with opinions being expressed, but when they make accusations of falsifying scientific data...then it becomes out of bounds. I don't think there has been many earthquakes in this world that have seismographs at the exactly epicenter of each one. The only exception would probably be volcano monitoring equipment. However, there are numerous recording devices out there now - far above on the map below that we already had:

http://www.okgeosurvey1.gov/stations2.jpg

Thunder
03-02-2010, 03:30 AM
Venture, share more. How are they able to scale it by .3 down?

bandnerd
03-02-2010, 05:57 AM
Just like when they scaled down the May 3rd tornado--it was for accuracy, not for peace of mind.

Opinions are not always fact. Why you "think" they lowered the magnitude has nothing to do with why they really did it.

mugofbeer
03-02-2010, 09:05 AM
I believe the Chile earthquake was first reported as an 8.2 or .3 and then later upped to an 8.8. I think the massive Indonesian quake a few years ago was first reported a little lower than it ended up being at 9.2. Thunder, revisions happen all the time.

dismayed
03-02-2010, 08:07 PM
Yeah I think you're right. I was really surprised to learn that it isn't the Richter scale that they use anymore... it's been superseded by the "moment magnitude scale." It uses the same format numbers and is also a logarithm, but I guess it's more about movement and force per centimeter. So if they're measuring to those levels of accuracy I'd imagine that the M-number does get refined as more detail is sought.

Thunder
03-02-2010, 11:00 PM
This isn't the only one. More to come.


== PRELIMINARY EARTHQUAKE REPORT ==



Region: OKLAHOMA
Geographic coordinates: 35.549N, 97.282W
Magnitude: 2.5 M
Depth: 5 km
Universal Time (UTC): 3 Mar 2010 04:35:17
Time near the Epicenter: 2 Mar 2010 22:35:17
Local standard time in your area: 3 Mar 2010 04:35:17

Location with respect to nearby cities:
2 km (1 miles) SSE (155 degrees) of Jones, OK
8 km (5 miles) N (350 degrees) of Choctaw, OK
8 km (5 miles) NNE (33 degrees) of Nicoma Park, OK
24 km (15 miles) ENE (72 degrees) of Oklahoma City, OK
309 km (192 miles) N (352 degrees) of Dallas, TX

venture
03-03-2010, 12:45 AM
http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010tjan/us/us2010tjan_ciim.jpg

Bunty
03-03-2010, 10:14 PM
So is it safe to say that oil and gas drilling in Oklahoma is not shifting the earth's crust, making earthquakes, because if it was true, then the Middle East would be one heck of an earthquake zone after many years of drilling there?

venture
03-03-2010, 11:07 PM
So is it safe to say that oil and gas drilling in Oklahoma is not shifting the earth's crust, making earthquakes, because if it was true, then the Middle East would be one heck of an earthquake zone after many years of drilling there?

That's not the reason here. They did find several series of faults in the area they have been happening. If you look at the Google map I put together, you can notice how many follow river beds. Probably not a coincidence since there are many cases of fault lines also having a river - depending on how deep the ground has shifted. Of course most of the ones that I know of are pretty old faults that have little to no activity anymore.

Now this doesn't mean that drilling doesn't cause earthquakes. Dallas a few years back was a perfect example. The way they were drilling and filling the cavities was causing numerous earthquakes.

venture
03-05-2010, 04:00 PM
http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010tlb9/us/us2010tlb9_ciim.jpg

Magnitude
3.1
Date-Time
Friday, March 05, 2010 at 20:35:13 UTC
Friday, March 05, 2010 at 02:35:13 PM at epicenter
Time of Earthquake in other Time Zones
Location
35.608°N, 96.783°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
3 km (2 miles) E (94°) from Sparks, OK
11 km (7 miles) S (188°) from Davenport, OK
15 km (9 miles) SE (139°) from Chandler, OK
33 km (20 miles) NNE (25°) from Shawnee, OK
69 km (43 miles) ENE (78°) from Oklahoma City, OK
312 km (194 miles) N (0°) from Dallas, TX
Location Uncertainty
horizontal +/- 7.5 km (4.7 miles); depth fixed by location program
Parameters
NST= 10, Nph= 10, Dmin=71.1 km, Rmss=0.71 sec, Gp= 79°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6

Redskin 70
03-05-2010, 04:36 PM
Welp I sure felt it down by McCloud
I heard the sonic rumble, (yeah I know not accurate but cant describe it better)
Just prior to feeling the shake. Just before the shake my chicken flock who I was watching actuall started running and flying...........intresting to watch and contemplate afterwards..............especially the one that landed on my shoulder, Like Im some big brother or something.....lol

BDP
03-06-2010, 07:59 PM
The day is getting closer, we will have a 5.0+ in the state.

The day is also getting farther away from the last time we had a 5.0.


???

venture
03-06-2010, 11:39 PM
If the fault has enough stress built up to cause a 5.0+...then let it get it done with. I'd rather have a couple 5.0s instead of a 6.0 or 7.0 occur on a fault line that lies in the Metro area. A metro area where, i'm guessing, the building codes are setup to ensure structures can resist such a tremor. Granted they do have to withstand our normal weather, so that may help. The only structure that immediately pops into mind though would probably be the Crosstown. However, it may take more than 5.0 or so to bring that down.

venture
03-10-2010, 10:06 AM
Magnitude
3.1
Date-Time
Wednesday, March 10, 2010 at 06:04:35 UTC
Wednesday, March 10, 2010 at 12:04:35 AM at epicenter
Time of Earthquake in other Time Zones
Location
35.613°N, 96.766°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
5 km (3 miles) E (86°) from Sparks, OK
10 km (6 miles) S (181°) from Davenport, OK
15 km (10 miles) SE (134°) from Chandler, OK
34 km (21 miles) NNE (27°) from Shawnee, OK
71 km (44 miles) ENE (78°) from Oklahoma City, OK
313 km (194 miles) N (0°) from Dallas, TX
Location Uncertainty
horizontal +/- 9.7 km (6.0 miles); depth fixed by location program
Parameters
NST= 9, Nph= 9, Dmin=72.4 km, Rmss=1.25 sec, Gp= 79°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6
Source
USGS NEIC (WDCS-D)
Event ID
us2010trau

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010trau/us/us2010trau_ciim.jpg

venture
03-11-2010, 12:08 PM
From OGS:

Nine Earthquakes recorded in Canadian County: Several felt in Niles & Minco OK. 3/11/10 LATEST OKLAHOMA EARTHQUAKES!

The six largest earthquakes locations are very well constrained and on relocation we expect the magnitude 2.1 earthquake to centered with the cluster. The cluster of six earthquakes is 7 miles west of Union City Oklahoma in Canadian County near the border with both Grady and Caddo Counties. The cluster is about 11 miles SSW of El Reno.

2010 MAR 11 07:41:31 CANADIAN 2.1 35.277N 98.019W 2.7km

2010 MAR 11 08:11:01 CANADIAN F 3.0 35.378N 98.046W 5.0km

2010 MAR 11 09:45:19 CANADIAN F 2.8 35.398N 98.072W 2.3km

2010 MAR 11 10:00:56 CANADIAN F 2.7 35.4 98.1 5.0km

2010 MAR 11 10:06:10 CANADIAN F 2.7 35.384N 98.069W 2.5km

2010 MAR 11 10:54:25 CANADIAN F 3.0 35.401N 98.062W 5.0km

2010 MAR 11 13:15:17 CANADIAN F 2.9 35.388N 98.078W 3.2km

http://www.okgeosurvey1.gov/V33A_BHZ_TAcanadiancounty.png

venture
03-11-2010, 12:41 PM
I got most of the earthquakes mapped out: Oklahoma Earthquakes 2010 - Google Maps (http://maps.google.com/maps/ms?f=q&source=s_q&hl=en&geocode=&ie=UTF8&msa=0&msid=106769263262406480646.00047ce76a8ac63919633&ll=35.529991,-97.289429&spn=1.886467,4.614258&t=h&z=9)

Two small earthquakes didn't have an official location on them, so they are on the map with a dot in the marker. Also the one near Minco may have its location adjusted further north after they did done reviewing all data.

Thunder
03-11-2010, 02:45 PM
Are you saying all those was today?

venture
03-11-2010, 03:20 PM
Are you saying all those was today?

Yes they were all today.

Thunder
03-11-2010, 07:49 PM
Well, I slept thru all of that. LOL!

We just had another one.


== PRELIMINARY EARTHQUAKE REPORT ==



Region: OKLAHOMA
Geographic coordinates: 35.465N, 98.106W
Magnitude: 3.4 M
Depth: 4 km
Universal Time (UTC): 11 Mar 2010 23:57:29
Time near the Epicenter: 11 Mar 2010 17:57:29
Local standard time in your area: 11 Mar 2010 23:57:29

Location with respect to nearby cities:
15 km (10 miles) WSW (242 degrees) of El Reno, OK
15 km (9 miles) S (175 degrees) of Calumet, OK
19 km (12 miles) WNW (288 degrees) of Union City, OK
52 km (32 miles) W (268 degrees) of Oklahoma City, OK
320 km (199 miles) NNW (338 degrees) of Dallas, TX

venture
03-11-2010, 08:22 PM
http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010tscn/us/us2010tscn_ciim.jpg

venture
03-13-2010, 04:39 AM
Magnitude
3.1
Date-Time
Saturday, March 13, 2010 at 09:02:44 UTC
Saturday, March 13, 2010 at 03:02:44 AM at epicenter
Time of Earthquake in other Time Zones
Location
35.398°N, 98.069°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
14 km (9 miles) NW (310°) from Minco, OK
14 km (9 miles) W (263°) from Union City, OK
18 km (11 miles) SW (215°) from El Reno, OK
49 km (31 miles) W (259°) from Oklahoma City, OK
312 km (194 miles) NNW (338°) from Dallas, TX
Location Uncertainty
horizontal +/- 9.1 km (5.7 miles); depth fixed by location program
Parameters
NST= 12, Nph= 12, Dmin=32.4 km, Rmss=1.15 sec, Gp=115°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=7

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010tua3/us/us2010tua3_ciim.jpg

Thunder
03-13-2010, 06:48 AM
The quakes is starting to be all over the states!!!

venture
03-13-2010, 11:24 AM
The quakes is starting to be all over the states!!!

They are just starting to show up in other areas where they should be. The image below only goes through 2001, but it clearly shows this latest swarm is in an area that normally seems this activity.

http://www.okgeosurvey1.gov/level2/okeqcat/1977.2001.animated.gif

Also...there were 4 more quakes yesterday that the USGS did not register, but are on the OGS site.

2010 MAR 12 05:17:57 CANADIAN 1.7 35.53N 97.381W 0km

2010 MAR 12 07:23:11 CANADIAN 2.3 35.547N 96.756W 0km

2010 MAR 12 07:56:00 CANADIAN 2.7 35.658N 97.222W 4.5km

2010 MAR 12 14:59:57 CANADIAN F 2.2 35.416N 98.096W 5.5km

venture
03-13-2010, 05:38 PM
Working on the map a bit more today. There were some missing that OGS had in their catalog that USGS didn't pick up on - back a couple months that is. Fixed some strength changes as well, but definitely quite a few on the map so far with these swarms. Data is likely to change as they'll revisit readings and such. OGS mentioned up to 10 earthquakes a couple days back, but only put 8 in their database. The weaker tremors were around M1.0 give or take. I included them on the map, but they aren't in the official catalog right now.

Totals so far:
January - 7 Total (M4.0+: 1, M3.0+: 4, M2.0+: 2)
February - 9 Total (M4.0+: 1, M3.0+: 2, M2.0+: 6)
March (through this post) - 21 Total (M3.0+: 6, M2.0+: 9, M1.0+: 6)

Again, map is at: Oklahoma Earthquakes 2010 - Google Maps (http://maps.google.com/maps/ms?ie=UTF8&hl=en&msa=0&msid=106769263262406480646.00047ce76a8ac63919633&ll=35.576498,-97.259731&spn=0.112254,0.288391&t=h&z=8)

Also have a page on AC.com that is a bit more organized: Earthquake Information - AnvilCrawlers (http://www.anvilcrawlers.com/index.php?title=Earthquake_Information)

Thunder
03-14-2010, 04:37 AM
Nice map and info. :-)

venture
03-19-2010, 10:39 PM
Magnitude
2.4
Date-Time
Friday, March 19, 2010 at 22:07:27 UTC
Friday, March 19, 2010 at 05:07:27 PM at epicenter
Time of Earthquake in other Time Zones
Location
35.554°N, 97.473°W
Depth
10 km (6.2 miles) set by location program
Region
OKLAHOMA CITY URBAN AREA, OKLAHOMA
Distances
3 km (2 miles) NW (318°) from Lake Aluma, OK
6 km (3 miles) NNW (340°) from Forest Park, OK
6 km (4 miles) E (82°) from Nichols Hills, OK
10 km (6 miles) NE (35°) from Oklahoma City, OK
313 km (194 miles) N (349°) from Dallas, TX
Location Uncertainty
horizontal +/- 10.7 km (6.6 miles); depth fixed by location program
Parameters
NST= 7, Nph= 7, Dmin=31.4 km, Rmss=1.01 sec, Gp=112°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=8

http://terraservice.net/GetImageArea.ashx?t=1&s=14&lon=-97.47&lat=35.55&w=500&h=500&logo=1&p=42:-97.47:35.55

mugofbeer
03-19-2010, 10:40 PM
They're creeeeeeeeping closer, and closer, and ........

possumfritter
03-20-2010, 06:05 AM
Venture,

I am curious...are the bordering states experiencing as much earthquake activity as well?

venture
03-20-2010, 01:42 PM
Arkansas over to SE Missouri have more activity than we do typically. All due to the New Madrid fault there. We have been active, not as much as they have though. Texas rarely has much activity, same with KS and CO.

possumfritter
03-20-2010, 03:03 PM
Thank ya Venture

venture
03-22-2010, 02:12 AM
Magnitude
3.8
Date-Time
Monday, March 22, 2010 at 02:37:18 UTC
Sunday, March 21, 2010 at 09:37:18 PM at epicenter
Time of Earthquake in other Time Zones
Location
35.542°N, 96.737°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
8 km (5 miles) NW (324°) from Prague, OK
11 km (7 miles) SE (135°) from Sparks, OK
15 km (10 miles) ENE (71°) from Meeker, OK
28 km (18 miles) NE (39°) from Shawnee, OK
73 km (45 miles) E (85°) from Oklahoma City, OK
305 km (190 miles) N (1°) from Dallas, TX
Location Uncertainty
horizontal +/- 4.9 km (3.0 miles); depth fixed by location program
Parameters
NST= 38, Nph= 38, Dmin=41.7 km, Rmss=0.96 sec, Gp= 61°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=7
Source
USGS NEIC (WDCS-D)

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010udad/us/us2010udad_ciim.jpg

venture
03-22-2010, 07:55 PM
Two more today.

Magnitude
2.7
Date-Time
Monday, March 22, 2010 at 08:20:04 UTC
Monday, March 22, 2010 at 03:20:04 AM at epicenter
Time of Earthquake in other Time Zones
Location
35.558°N, 96.822°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
6 km (4 miles) S (182°) from Sparks, OK
10 km (6 miles) NE (45°) from Meeker, OK
15 km (9 miles) WNW (303°) from Prague, OK
26 km (16 miles) NNE (23°) from Shawnee, OK
65 km (40 miles) E (82°) from Oklahoma City, OK
307 km (191 miles) N (359°) from Dallas, TX
Location Uncertainty
horizontal +/- 7.9 km (4.9 miles); depth fixed by location program
Parameters
NST= 13, Nph= 13, Dmin=70.1 km, Rmss=1.04 sec, Gp= 79°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6
Source
USGS NEIC (WDCS-D)

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010uday/us/us2010uday_ciim.jpg

Magnitude
2.8
Date-Time
Monday, March 22, 2010 at 09:18:51 UTC
Monday, March 22, 2010 at 04:18:51 AM at epicenter
Time of Earthquake in other Time Zones
Location
35.590°N, 96.775°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
5 km (3 miles) ESE (118°) from Sparks, OK
13 km (8 miles) S (184°) from Davenport, OK
14 km (9 miles) NW (326°) from Prague, OK
31 km (19 miles) NNE (27°) from Shawnee, OK
70 km (43 miles) E (80°) from Oklahoma City, OK
310 km (193 miles) N (0°) from Dallas, TX
Location Uncertainty
horizontal +/- 5.8 km (3.6 miles); depth fixed by location program
Parameters
NST= 16, Nph= 16, Dmin=72.5 km, Rmss=0.68 sec, Gp= 79°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=7

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010uda4/us/us2010uda4_ciim.jpg

Thunder
03-22-2010, 10:33 PM
There are a couple more today as well and some of those was classified as aftershocks.

venture
03-22-2010, 11:58 PM
Yeah...its frustrating at times with USGS doesn't pick up on them, but at least OGS is putting together a much better website for this.

Helicorder recording from OGS with the latest quakes.

http://www.okgeosurvey1.gov/media/eqimages/3-22-10V35Aheli.png

Thunder
03-23-2010, 12:00 AM
I feel the same way with USGS. They've been slacking severely, even to the point of not finalizing sum quakes.

venture
03-23-2010, 12:08 AM
This is going to be a big confusing...but all the quakes with the recent event:

ear Date HRMM Sec Error Latitud Error Longitud Error Depth Error AGA NST RMS GAP Mc Mb Mw County

2010 322 128 54.1 0.43 35.888 2.4 -96.804 2.2 0 11 OGS 7 0.5 105 1.9 OGS
2010 322 237 18.6 1.47 35.512 6 -96.751 5.4 15.2 9.4 OGS 23 1.3 159 3.2 OGS 3.8 US
2010 322 636 28.6 2.52 35.495 17.3 -97.071 18.1 31.9 29.2 OGS 10 2.7 147 2.5 OGS
2010 322 650 29.8 0.49 36.091 2 -97.459 3.1 5.2 5.7 OGS 12 0.6 56 2.6 OGS
2010 322 743 49.8 0.43 36.087 1.5 -97.472 2.7 8.2 4 OGS 8 0.4 64 2.5 OGS
2010 322 820 4.4 0.63 35.529 3 -96.764 3.5 5 4.6 OGS 15 0.7 143 2.6 OGS 2.7 US
2010 322 827 42 0.43 35.535 3.1 -96.752 3.4 0 10.9 OGS 8 0.5 160 2.2 OGS
2010 322 918 51.4 0.57 35.542 2.6 -96.735 3.9 5 5.3 OGS 13 0.6 143 2.9 OGS 2.8 US
2010 322 1004 27.4 0.6 35.545 3.4 -96.749 3.8 5 7.6 OGS 12 0.6 142 2.5 OGS
2010 322 1227 50.6 0.42 35.535 3 -96.744 4.6 0 11.8 OGS 7 0.5 160 1.7 OGS

venture
03-23-2010, 12:31 AM
Updated the Google Map with everything: Oklahoma Earthquakes 2010 - Google Maps (http://maps.google.com/maps/ms?ie=UTF8&hl=en&msa=0&msid=106769263262406480646.00047ce76a8ac63919633&ll=35.576498,-97.259731&spn=0.112254,0.288391&t=h&z=8)

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.

http://www.anvilcrawlers.com/quakes.jpg

SkyWestOKC
03-23-2010, 08:01 AM
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
04-04-2010, 11:59 AM
Magnitude
2.3
Date-Time
Saturday, April 03, 2010 at 13:34:17 UTC
Saturday, April 03, 2010 at 08:34:17 AM at epicenter
Time of Earthquake in other Time Zones
Location
35.504°N, 97.233°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
4 km (2 miles) NE (52°) from Choctaw, OK
5 km (3 miles) NW (305°) from Harrah, OK
9 km (5 miles) SE (142°) from Jones, OK
27 km (17 miles) E (85°) from Oklahoma City, OK
304 km (189 miles) N (352°) from Dallas, TX
Location Uncertainty
horizontal +/- 7.7 km (4.8 miles); depth fixed by location program
Parameters
NST= 8, Nph= 8, Dmin=44.9 km, Rmss=0.45 sec, Gp=108°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6
Source
USGS NEIC (WDCS-D)

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010uqau/us/us2010uqau_ciim.jpg

Magnitude
2.2
Date-Time
Saturday, April 03, 2010 at 13:52:16 UTC
Saturday, April 03, 2010 at 08:52:16 AM at epicenter
Time of Earthquake in other Time Zones
Location
35.500°N, 97.119°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
6 km (4 miles) ENE (66°) from Harrah, OK
10 km (6 miles) N (349°) from McLoud, OK
14 km (8 miles) E (82°) from Choctaw, OK
24 km (15 miles) NW (316°) from Shawnee, OK
38 km (23 miles) E (87°) from Oklahoma City, OK
302 km (188 miles) N (354°) from Dallas, TX
Location Uncertainty
horizontal +/- 7.2 km (4.5 miles); depth fixed by location program
Parameters
NST= 9, Nph= 9, Dmin=51.8 km, Rmss=0.56 sec, Gp= 86°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6
Source
USGS NEIC (WDCS-D)
Event ID
us2010uqat

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010uqat/us/us2010uqat_ciim.jpg

venture
04-09-2010, 01:50 AM
Magnitude
3.2
Date-Time
Thursday, April 08, 2010 at 12:42:42 UTC
Thursday, April 08, 2010 at 07:42:42 AM at epicenter
Time of Earthquake in other Time Zones
Location
35.531°N, 97.308°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
4 km (2 miles) SSW (203°) from Jones, OK
5 km (3 miles) NNE (22°) from Nicoma Park, OK
6 km (4 miles) ENE (65°) from Spencer, OK
21 km (13 miles) ENE (75°) from Oklahoma City, OK
308 km (191 miles) N (351°) from Dallas, TX
Location Uncertainty
horizontal +/- 10 km (6.2 miles); depth fixed by location program
Parameters
NST= 10, Nph= 10, Dmin=38.6 km, Rmss=1.29 sec, Gp= 76°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6
Source
USGS NEIC (WDCS-D)
Event ID
us2010uvbj

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010uvbj/us/us2010uvbj_ciim.jpg

venture
04-10-2010, 03:30 AM
Magnitude
2.8
Date-Time
Saturday, April 10, 2010 at 02:49:29 UTC
Friday, April 09, 2010 at 09:49:29 PM at epicenter
Time of Earthquake in other Time Zones
Location
35.504°N, 97.306°W
Depth
5 km (3.1 miles) set by location program
Region
OKLAHOMA
Distances
2 km (2 miles) NE (55°) from Nicoma Park, OK
4 km (3 miles) NW (305°) from Choctaw, OK
6 km (4 miles) E (94°) from Spencer, OK
21 km (13 miles) E (83°) from Oklahoma City, OK
305 km (189 miles) N (351°) from Dallas, TX
Location Uncertainty
horizontal +/- 8.5 km (5.3 miles); depth fixed by location program
Parameters
NST= 13, Nph= 13, Dmin=41.4 km, Rmss=1.31 sec, Gp= 76°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=7
Source
USGS NEIC (WDCS-D)
Event ID
us2010uxal

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010uxal/us/us2010uxal_ciim.jpg

venture
04-12-2010, 08:38 AM
http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2010uzai/us/us2010uzai_ciim.jpg

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
04-12-2010, 09:01 AM
What's going on up there?

Thunder
04-12-2010, 10:38 AM
What's going on up there?

Just some more shakes before the ground finally open up.