M 5.6 Very Strong Earthquake In Oklahoma + M 4.7 Very Strong Aftershocks on November 8

Disaster Report: PRAGUE/OK EARTHQUAKE 2011: STRONGEST EARTHQUAKE IN OKLAHOMA HISTORY

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Source OGS

11/13 UPDATE
Minor aftershock of magnitude 3  is recorded today on November 13, 2011. The epicenter is 19 km NNE of Shawnee, Oklahoma. well felt in Oklahoma state.

11/10 UPDATE
The Oklahoma government has declared state of emergency for 20 counties after earthquake, tornado and severe storm hit the recent days, the international medias reported.

11/09 UPDATE    
Authorities from Lincoln County Emergency said office has received reports of 94 homes damaged due to the recent earthquakes. Quoting newsok, "Walls on a warehouse were damaged and another abandoned structure was damaged Monday night"

UPDATE 3:26 UTC 
light trembling is reported from Tulsa

UPDATE 3:08 UTC  
Oklahoma City, OK is approx. 70 km far from the epicenter hence will have felt weak to light shaking.


UPDATE 3:08 UTC
It is the very strong aftershocks with MMI VII. Prague will again experience a strong shaking.

11/8/2011 UPDATE (2:57 UTC)
Another aftershocks of M 4.7 @ shallow depth of 5 km hit Oklahoma again at 2:46 UTC.The epicenter of this aftershocks is just 9 km  NW from Prague, OK and 71 km E  from Oklahoma City, OK.

UPDATE 2:53 UTC
The USGS is installing more sensors in the region to better analyze the quake series. Authorities said,the very quake sent shock waves for about 20-30 seconds.

UPDATE 2:49 UTC
The department of emergency management said, a Lincoln County resident was injured when he hit his head trying to run out of his home during the earthquake and other was a female from Pottawatomie County who cut her foot on broken glass after the earthquake. But neither required hospitalization.

UPDATE 2:45 UTC
It is good to hear that  the Oklahoma Department of Emergency Management said no damage has been found on bridges nor lake dams in the area. U.S. Highway 62 buckled in at least two places during the quake, causing a sinkhole east of Meeker, Okla., but road crews repaired the damage overnight.

UPDATE 2:41 UTC
The Oklahoma Geological Survey has warned people to expect more aftershocks. Till now aftershocks are recorded but they are minor, less than M 3.

UPDATE 2:38 UTC
The Oklahoma health department reported two minor injuries, neither requiring hospitalization.

UPDATE 11/7/2011 (2:33 UTC)
Officials have finally confirmed M 5.6 Oklahoma earthquake has damaged 14 homes in Oklahoma. However, there is no report of anyone seriously damaged.

UPDATE 17:34 UTC
Though the damaged reports are not obtained officially, we are going to update with the selected damage videos showing the effect of this very earthquake. Click here for the videos showing Oklahoma earthquake damages

UPDATE 17:17 UTC
However, Kenny Shaw, Dallas' director of emergency management, said Sunday morning. "We haven't had any reports of damage or injuries." Emergency phonelines were tied up with people calling to say they felt the quake.

UPDATE 17:13 UTC
The quake damaged a 40-foot spire at St. Gregory University in Shawnee and ruptured a water pipe in Chandler, Okla

UPDATE 17:11 UTC
However Prague Community Hospital hasn't reported any other injuries associated with the quake yet.

UPDATE 17:09 UTC
Quoating LA times One man was reportedly injured when he tripped and hit his head while attempting to flee his home near Prague, Okla

UPDATE 17:05 UTC  
Caused major damage to at least five homes

UPDATE 14:03 UTC 
At Shawnee, the fire department said one spire on the administration building at St. Gregory University had been damaged and another one was leaning, according to KWTV in Oklahoma City.

UPDATE 12:28 UTC   

A lot of people were scared. Residents in Prague and Sparks felt an intense shaking. People were seen  panicked  in Oklahoma city. Oklahoma City is 72km southwest from the epicentre of the quake.

A strong jolt was also felt in Kansas City, more than 570km away.

According to USGS, the strongest earthquake previously recorded in Oklahoma was in 1952 of M 5.5

UPDATE 12:20 UTC  

Still the aftershocks are recorded. M 4.0 @ 5 km depth is reported by USGS (9:39 UTC).

However no severe damage is reported.

UPDATE 8:04 UTC 
Aftershocks < M 4 are still recorded

UPDATE 7:05 UTC
Emergency authorities have no immediate reports of injuries or major damages. But one county’s sheriff’s office in the region said it is responding to calls and damages.

UPDATE 6:54 UTC 
In Stillwater, a college football game had recently ended Saturday night when the quake shook a stadium

UPDATE 6:43 UTC 
No any serious damage reported till now

UPDATE 6:10 UTC
 damage are reported from Chandler, Stroud, Prague, Boley area.

Updated Felt MMI intensity by USGS,VI-strong; V-moderate

UPDATE 6:04 UTC
200,000 people will experience a very strong shaking of MMI VIII which will cause moderate potential damage

UPDATE 5:57 UTC
USGS Earthquake Shaking Alert Level is now Yellow which means alert level for economic losses. Some damage is possible and the impact should be relatively localized. Estimated economic losses are less than 1% of GDP of the United States

UPDATE 5:55 UTC
Tremors from the quake were felt as far east as Little Rock and as far north as Wichita.

UPDATE 5:50 UTC

Following the twitter updates, In some cases chimneys have collapsed through the roofs of homes. Damage to the Prague library includes collapsed air condition ducts and a collapsed wall. Several roadways have buckled, including Highway 62 and other county roads.

UPDATE 5:45 UTC
It said the quake struck near the community of Sparks — in eastern Oklahoma between Oklahoma City and Tulsa. The temblor shook the stadium at Oklahoma State University in Stillwater near the end of the school's football game with Kansas State.

UPDATE 5:36 UTC
The Weather Underground website said it had received reports that the quake had been felt as far away as Arkansas, Texas and Kansas, but there were no immediate reports of injuries or damage to property.

UPDATE 5:29 UTC
Lincoln County Emergency Management department reports, Very significant damages being reported in southern Lincoln County

UPDATE 5:012 UTC
Fox News mentions damage to buildings located close to the quake's epicenter

UPDATE 5:06 UTC
Emergency management officials in Lincoln County were reporting significant damage, NBC station KJRH of Tulsa reported.

UPDATE 5:04 UTC
Oklahoma Geological Survey told the earthquakes are occurring on a known fault line.

UPDATE 5:02 UTC
North Texans are reporting of felling this quake

UPDATE 4:59 UTC
It is the largest quake in Oklahoma's history.

UPDATE 4:56 UTC
Updated USGS data M 5.6 @ 5 km depth
EMSC data 5.6 @ 2 km depth

UPDATE 4:54 UTC
USGS updates it intensity to M 5.6 with more cities experiencing moderate shaking

UPDATE 4:50 UTC
Felt MMI intensity by USGS


 Note: V Moderate and IV Light shaking


UPDATE 4:48 UTC 
EMSC felt reports 
Shawnee: The T.V. almost fell over! I was standing by the TV when it happened. Very hard to walk down my hallway at the time
Moore: Shook bed hard enough to wake out of sound sleep. It shook small pictures and decorations off walls and a few off small shelves (decorative and not sturdy shelves ) had all close neighbors running outside side, we all met in street to talk! No major damage that can see.
Eufaula: Quake started with a jolt and then loud rumble/trembling that increased in intensity for about the first 15 seconds.  The rumble/trembling continued for approximately 30 seconds total.  After the first 15 seconds or so it began to decrease in intensity and just before it stopped there was another small jolt.
Van Buren :It sounded like and felt like a vehicle hit the house, then I felt the couch sway back and forth one time in each direction.
Madison :My water pipes started rattling...I was sitting at the time, I felt like my chair very faintly weaved.  It was weird.
Leavenworth:It started out weak just making things rattle but the bed eventually was swaying.



UPDATE 4:43 UTC
It is top three strong earthquake in Oklahoma history

UPDATE 4:40 UTC 

The epicenter is very close to Shawnee, Oklahoma. Shawneee has approx. population of 29,000

UPDATE 4:36 UTC 

Moderate shaking will be experienced in Prague, Chandler, Stroud and Boley

UPDATE 4:25 UTC
Strong earthquake with MMI VI, will be felt strongly by 192,000 people

UPDATE 4:20 UTC
EMSC mentions M 5.2 @ 2.0 km depth shallower than USGS

Satellite map of Oklahoma aftershocks epicenter area

M 5.2 aftershocks has just rattled Oklahoma. It is stronger than the yesterday's main shock of M 4.7. The epicenter location is
34 km (21 miles) NNE of Shawnee, Oklahoma

63 km (39 miles) SSE of Stillwater, Oklahoma

68 km (42 miles) ESE of Guthrie, Oklahoma

71 km (44 miles) ENE of OKLAHOMA CITY, Oklahoma