Oklahoma Earthquakes 2011

[venture]

Yet another thread coming back from the depths. :-)

2010 finished out a pretty active year with with well over 200 earthquakes in the state, including the 2nd strongest in recorded history on October 13th of a 4.7 magnitude in the Norman/Noble area.

The Oklahoma Geological Survey has been updating their website with a ton of new features. http://www.okgeosurvey1.gov/

One of the best pages is the Recent Earthquake report: http://www.okgeosurvey1.gov/pages/ea...arthquakes.php

This map is updated with all earthquakes recording by the monitoring sites in Oklahoma, and most of these quakes do not register on the USGS site.

Also added is the catalogs page that has documented all (recorded) earthquakes in Oklahoma since 1897, even though most monitoring didn't start until about 50 years ago. http://www.okgeosurvey1.gov/pages/ea...s/catalogs.php

Some important links...
2010 Catalog: http://wichita.ogs.ou.edu/scripts/ca...list?year=2010
2010 Map: http://wichita.ogs.ou.edu/scripts/ma...rmap?year=2010

2011 Catalog: http://wichita.ogs.ou.edu/scripts/ca...list?year=2011
2011 Map: http://wichita.ogs.ou.edu/scripts/ma...rmap?year=2011 (may not yet be working)

USGS Central & Eastern Oklahoma Map


USGS Central & Western Oklahoma Map

[Snowman]

2010 finished out a pretty active year with with well over 200 earthquakes in the state, including the 2nd strongest in recorded history on October 13th of a 4.7 magnitude in the Norman/Noble area.

That is defiantly up from our average of 50 with only around 2 reported as felt per year.

[Thunder]

David, thank you for taking the time to lay this all out for us. We really appreciate for all that you have done on here. The resources and insight you provide is very much appreciated. Thank you!

[venture]

Arkansas continues to experience a pretty consistent earthquake swarm. Here is a story from USGS on it:

http://www.usgs.gov/newsroom/article...&from=rss_home

Not Oklahoma, but definitely in our neighborhood. Of course the big news tonight is the major earthquakes out in the South Pacific, especially the major one in Christchurch, NZ.

[UnFrSaKn]

The earthquake wasn't too kind to some historic structures. I wonder if they just have to demolish them.

[venture]

Little jolt this morning for people on the east side. This is the first 3.0+ magnitude tremor we've had since mid-January.

Magnitude: 3.2
Date-Time: Friday, March 11, 2011 at 10:56:23 UTC | Friday, March 11, 2011 at 04:56:23 AM at epicenter
Location: 35.496°N, 97.090°W
Depth: 4.7 km (2.9 miles) set by location program
OKLAHOMA
9 km (6 miles) ENE (75°) from Harrah, OK
9 km (6 miles) N (5°) from McLoud, OK
16 km (10 miles) E (84°) from Choctaw, OK
22 km (14 miles) NW (320°) from Shawnee, OK
40 km (25 miles) E (88°) from Oklahoma City, OK
301 km (187 miles) N (355°) from Dallas, TX

[silvergrove]

Felt one just now around 12:50 AM near the OUHSC area while in bed.

[venture]

Felt one just now around 12:50 AM near the OUHSC area while in bed.

This should be the one: http://earthquake.usgs.gov/earthquak...usc0006b0a.php

[silvergrove]

This should be the one: http://earthquake.usgs.gov/earthquak...usc0006b0a.php

Lol yeah. First thing I did was check the twitter feeds and there were a few reports to confirm what I had felt. Like any good scientist, I submitted a "did you feel it?" report to the USGS. What do they use this data for anyways?

[Thunder]

Venture, do you have a map graphing out all the quakes over the past few years toward now? I'd like to see a line graph connecting location to location to location and see what pattern is there. And compare to known fault lines and newly discovered fault lines. And at what depth underneath Oklahoma is the start of the magma chambers?

[venture]

Try this site: http://www.okgeosurvey1.gov/

and here...

http://www.okgeosurvey1.gov/pages/ea...s/catalogs.php

[venture]

Looking at the OGS site, they are placing the 2.9 tremor in Midwest City, not way out east like the USGS site. Looks like just along Reno between Midwest Blvd and Air Depot.

[MDot]

Does the red star represent where the tremor occurred?

[venture]

Does the red star represent where the tremor occurred?

Yes...at least according to USGS. OGS has it in Midwest City instead.

[MDot]

Yes...at least according to USGS. OGS has it in Midwest City instead.

Yeah, cause past Shawnee seems like a ways off for such a small earthquake to be felt all the way in Del City/Midwest City.

[Thunder]

Try this site: http://www.okgeosurvey1.gov/

and here...

http://www.okgeosurvey1.gov/pages/ea...s/catalogs.php

Thanks.

[Thunder]

Did we just have one bout 10 mins ago? Felt the couch shake a bit. Gotta be an earthquake. Plz don't say that I'm crazy!

[clefeb]

You're not crazy! I live in MWC and I felt it, my whole house shook! I felt the one on Tuesday as well. I called the PD to see if they had gotten any other calls and she said about 40 others so far.

[silvergrove]

You're not crazy Thunder, I felt it too!

http://earthquake.usgs.gov/earthquak...usb0006fej.php

[Thunder]

You're not crazy Thunder, I felt it too!

http://earthquake.usgs.gov/earthquak...usb0006fej.php

Thank you! I was really scared! All those horror movies on AMC...

[MDot]

Did we just have one bout 10 mins ago? Felt the couch shake a bit. Gotta be an earthquake. Plz don't say that I'm crazy!

You're crazy either way man. Lol

[Thunder]

You're crazy either way man. Lol

But you do love me. One more year then we go elope! :-D

[silvergrove]

To let you know, there was a 2nd one last night. The 2nd one was 3.5 magnitude.

http://earthquake.usgs.gov/earthquak...usb0006fgu.php

That makes about three ~3 magnitude earthquakes in the same area in the last few weeks.

[Thunder]

I didn't feel the second one.

[ljbab728]

Actually, if you look at this it shows several last night. The only ones that had a magnitude indicating large enough to be felt were at 6:24AM and at 9:18AM and were centered in the Spencer area. The others were mostly under magnitude 2 and would it would be very unsual for them to be felt.

http://www.okgeosurvey1.gov/pages/ea...arthquakes.php