Welcome to the 2012 version of this thread we've been doing for a few years now. So looking back 2010 finished with just over 200 reported earthquakes in Oklahoma. In 2011 we had an amazing year with over an estimated 1200 earthquakes including the record breaking 5.6 earthquake east of the Metro area. This earthquake was felt all over the Midwest from Illinois/Wisconsin and south through Texas. The earthquake was combined with a strong 4.7 foreshock that was felt over much of the region and then followed but another strong aftershock that rattled the region. 2011 finished off with a 3.5 earthquake in the same region where the 5.6 quake took place.

Oklahoma is home to many fault lines. The two most active areas for the 2011 period was the earthquake swarm zone just to the Northeast of Oklahoma City. The most noticed area was along the previously thought dormant Wilzetta Fault line to the east of the Oklahoma City area. This is also know as the Seminole Uplift. The area recorded well over 200 immediate aftershocks.

The Oklahoma Geological Survey can be seen at: http://www.okgeosurvey1.gov/

Recent Earthquakes: http://www.okgeosurvey1.gov/pages/earthquakes/recent-earthquakes.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/earthquakes/catalogs.php

USGS Central & Eastern Oklahoma Map
http://earthquake.usgs.gov/eqcenter/recenteqsus/Maps/US10/32.42.-100.-90.gif

USGS Central & Western Oklahoma Map
http://earthquake.usgs.gov/eqcenter/recenteqsus/Maps/US10/32.42.-105.-95.gif

Seismograph - Located in Eastern Oklahoma County
http://keokuk.ogs.ou.edu:49201/heli?code=V35A_BHZ_TA&w=1280&h=1024&tc=30&t1=-24&t2=now&tz=CST6CDT

Some important links...
Wilzetta Fault Map: http://www.ogs.ou.edu/earthquakes/Wilzetta2%20(2).pdf
Oklahoma Geological Map w/ Fault: http://www.ogs.ou.edu/geolmapping/Geologic_Provinces_OF5-95.pdf
Oklahoma Seismic Stations Map: http://www.okgeosurvey1.gov/pages/seismic-stations.php
2012 Catalog: http://wichita.ogs.ou.edu/scripts/catalogs/list?year=2012
2012 Map: http://wichita.ogs.ou.edu/scripts/maps/yearmap?year=2012

2011 Catalog: http://wichita.ogs.ou.edu/scripts/catalogs/list?year=2011
2011 Map: http://wichita.ogs.ou.edu/scripts/maps/yearmap?year=2011

2010 Catalog: http://wichita.ogs.ou.edu/scripts/catalogs/list?year=2010
2010 Map: http://wichita.ogs.ou.edu/scripts/maps/yearmap?year=2010

I'd love to have the honor of being the first responder. SUBSCRIBED!

I predict that this topic will reach 100+ pages as the year goes on. This is not just like any other years. Its the year 2012, the one billions of people have been waiting for. Millions of Oklahomans will be on edge 24/7/365/+1. Yes, there will be an extra day this year as it is a leap year taking place on February 29th. Earthquake insurance are strongly recommended while insurance companies will continue to increase the rates due to frequency of the occurrences, the risk factor, and the year being 2012. Take action now to enhance the security and structure of your home(s).

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/c0007fu7/us/usc0007fu7_ciim.jpg

Magnitude: 3.2
Date-Time: Tuesday, January 03, 2012 at 04:56:57 AM at epicenter
Time of Earthquake in other Time Zones: Tuesday, January 03, 2012 at 10:56:57 UTC
Location: 35.550°N, 96.728°W
Depth: 4.9 km (3.0 miles)
Region: OKLAHOMA
Distances

30 km (18 miles) NE of Shawnee, Oklahoma
69 km (42 miles) SSE of Stillwater, Oklahoma
70 km (43 miles) W of Okmulgee, Oklahoma
72 km (44 miles) E of OKLAHOMA CITY, Oklahoma

Location Uncertainty: horizontal +/- 6.5 km (4.0 miles); depth +/- 3 km (1.9 miles)
Parameters: NST= 55, Nph= 85, Dmin=5.6 km, Rmss=0.72 sec, Gp= 22°, M-type="Nuttli" surface wave magnitude (mbLg), Version=6
Source: Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID: usc0007fu7

And we're off to a fast start!

Its been pretty quiet for awhile. Did have quite a few weak tremors yesterday. A 2.2 happened today so far - which is the only one registered by the USGS.

Its been pretty quiet for awhile. Did have quite a few weak tremors yesterday. A 2.2 happened today so far - which is the only one registered by the USGS.

No need for the RED ALERT yet.

For an additional source of info the Oklahoma Earthquake Page can be found here: http://stillwaterweather.com/okareaearthquakes.php

Here is another seismograph image. They seem to take turns flaking out.

http://keokuk.ogs.ou.edu:49201/heli?code=FNO_HHZ_OK_01&w=1280&h=1024&tc=30&t1=-24&t2=now&tz=CST6CDT

Also...

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/2012wsaz/us/us2012wsaz_ciim.jpg

Magnitude: 3.3
Date-Time: Tuesday, February 07, 2012 at 16:29:29 UTC / Tuesday, February 07, 2012 at 10:29:29 AM at epicenter
Location: 35.395°N, 96.524°W
Depth: 5 km (3.1 miles) set by location program
Region: OKLAHOMA
Distances:
34 km (21 miles) ENE of Shawnee, Oklahoma
58 km (36 miles) WSW of Okmulgee, Oklahoma
72 km (44 miles) N of Ada, Oklahoma
87 km (54 miles) E of OKLAHOMA CITY, Oklahoma

Things seem to be getting a bit more active again in the last 24 hours. Just had one around 1:04 that was probably felt by a few people really close to it.

Latest Oklahoma earthquake activity?

Today near Luther at 1:20-ish. I-44 and Dobbs Road. 3.3 M

I was mentioned on KOCO the other day regarding an earthquake that shook the structure. This light fixture fell out of the ceiling directly above the recliner where I was sitting. On that day, I narrowly escaped death.

http://sphotos.xx.fbcdn.net/hphotos-ash3/551610_339365132786499_100001390447030_999838_1615 76149_n.jpg

Been months since this has been updated since we really haven't had many noticeable quakes. However, 2012 has still been extremely active. Here is a map, from the OGS data, on each quake location for the year so far.

Leonard Geophysical Observatory - Home (http://www.okgeosurvey1.gov/pages/home.php)

http://www.weatherspotlight.com/images/OK2012earthquakes.jpg