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Arkansas - Several earthquakes around Guy recently

Pathfinder

Pathfinder

Editor, Senior Moderator
Update time = Sun Nov 21 10:00:03 CST 2010
Here are the 30 most recent earthquakes and all M>3 earthquakes on this map...


MAG DATE LOCAL-TIME LAT LON DEPTH LOCATION y/m/d h:m:s deg deg km
</PRE>

2.6 2010/11/21 04:53:23 35.308N 92.305W 4.7 3 km ( 2 mi) SE of Guy, AR
2.5 2010/11/21 04:37:22 35.315N 92.307W 4.4 3 km ( 2 mi) ESE of Guy, AR
2.3 2010/11/21 04:03:38 35.313N 92.294W 5.9 4 km ( 2 mi) ESE of Guy, AR
2.4 2010/11/20 18:28:35 35.323N 92.295W 4.9 4 km ( 2 mi) E of Guy, AR
2.2 2010/11/20 17:53:04 35.322N 92.312W 3.5 2 km ( 1 mi) E of Guy, AR
2.5 2010/11/20 17:15:44 35.324N 92.302W 5.0 3 km ( 2 mi) E of Guy, AR
2.3 2010/11/20 16:54:22 35.318N 92.314W 2.9 2 km ( 1 mi) ESE of Guy, AR
2.2 2010/11/20 14:22:51 35.319N 92.321W 3.4 1 km ( 1 mi) ESE of Guy, AR
2.4 2010/11/20 13:16:52 35.314N 92.308W 5.7 3 km ( 2 mi) ESE of Guy, AR
3.9 2010/11/20 13:06:35 35.319N 92.303W 4.5 3 km ( 2 mi) ESE of Guy, AR
2.5 2010/11/20 01:33:49 35.310N 92.304W 4.8 3 km ( 2 mi) ESE of Guy, AR
2.2 2010/11/20 00:04:33 35.308N 92.319W 1.4 2 km ( 1 mi) SE of Guy, AR
2.3 2010/11/19 21:29:20 35.314N 92.317W 3.3 2 km ( 1 mi) SE of Guy, AR
2.7 2010/11/19 21:23:18 35.312N 92.304W 4.5 3 km ( 2 mi) ESE of Guy, AR
2.3 2010/11/19 20:02:37 35.310N 92.317W 3.5 2 km ( 1 mi) SE of Guy, AR
2.2 2010/11/19 19:01:38 35.304N 92.309W 6.0 3 km ( 2 mi) SE of Guy, AR
2.3 2010/11/19 18:15:41 35.308N 92.317W 3.6 2 km ( 2 mi) SE of Guy, AR
2.0 2010/11/19 18:15:07 35.299N 92.318W 5.8 3 km ( 2 mi) SSE of Guy, AR
2.3 2010/11/19 18:14:34 35.308N 92.305W 4.6 3 km ( 2 mi) SE of Guy, AR
2.7 2010/11/19 17:50:44 35.303N 92.308W 5.9 3 km ( 2 mi) SE of Guy, AR
2.9 2010/11/19 12:38:15 35.308N 92.318W 3.7 2 km ( 2 mi) SE of Guy, AR
2.8 2010/11/19 12:32:45 35.319N 92.318W 4.5 2 km ( 1 mi) ESE of Guy, AR
2.1 2010/11/18 22:35:16 35.314N 92.308W 4.5 3 km ( 2 mi) ESE of Guy, AR
1.7 2010/11/18 20:02:45 35.309N 92.316W 2.9 2 km ( 1 mi) SE of Guy, AR
1.6 2010/11/18 20:02:41 35.306N 92.312W 5.2 3 km ( 2 mi) SE of Guy, AR
2.0 2010/11/18 19:37:51 35.315N 92.317W 0.1 2 km ( 1 mi) SE of Guy, AR
2.0 2010/11/17 16:43:10 35.314N 92.315W 2.8 2 km ( 1 mi) SE of Guy, AR
2.7 2010/11/17 15:49:17 35.317N 92.317W 1.2 2 km ( 1 mi) ESE of Guy, AR
1.6 2010/11/17 15:46:47 35.314N 92.313W 3.2 2 km ( 1 mi) SE of Guy, AR
2.4 2010/11/17 05:35:28 35.306N 92.309W 6.2 3 km ( 2 mi) SE of Guy, AR
3.5 2010/10/16 04:43:18 35.288N 92.332W 6.1 4 km ( 3 mi) S of Guy, AR
3.0 2010/10/15 13:40:17 35.301N 92.340W 5.5 3 km ( 2 mi) S of Guy, AR
3.8 2010/10/15 05:20:18 35.294N 92.340W 7.0 3 km ( 2 mi) S of Guy, AR
3.4 2010/10/14 05:07:33 35.299N 92.352W 4.6 3 km ( 2 mi) SSW of Guy, AR
3.6 2010/10/11 11:06:04 35.315N 92.335W 5.9 1 km ( 1 mi) S of Guy, AR
4.0 2010/10/11 08:33:40 35.304N 92.317W 5.0 3 km ( 2 mi) SE of Guy, AR
3.0 2010/10/10 07:48:22 35.322N 92.332W 4.7 0 km ( 0 mi) SSE of Guy, AR
3.0 2010/10/08 23:13:40 35.307N 92.328W 5.2 2 km ( 1 mi) SSE of Guy, AR
3.2 2010/06/28 01:36:35 35.222N 91.858W 0.1 9 km ( 6 mi) NW of Garner, AR
3.3 2010/06/26 18:47:39 35.208N 91.869W 0.1 9 km ( 6 mi) NNW of Garner, AR


http://folkworm.ceri.memphis.edu/recenteqs/Maps/93-35.html

http://folkworm.ceri.memphis.edu/recenteqs/
 
Re: Arkansas - Several earthquakes in Guy recently

Re: Arkansas - Several earthquakes in Guy recently

CNN reports that according to the Arkansas Oil & Gas Commission, there are at least 6 deep injection waste water wells in the area around Guy.

http://articles.cnn.com/2010-12-13/us/arkansas.earthquakes_1_earthquake-swarm-new-madrid-arkansas-town?_s=PM:US
Last week the state of Arkansas issued a moratorium on new drilling permits. Lawrence Bengal, director of the Arkansas Oil and Gas Commission, said previously his office required only monthly reports outlining the operations of injection wells.

"We're asking well operators to provide daily reports now," Benegal said.
Click to expand...

The article mentions the story of the Army's Rocky Mountain Arsenal deep injection well in the 1960's.

http://earthquake.usgs.gov/earthquakes/states/colorado/history.php
In 1961, a 12,000-foot well was drilled at the Rocky Mountain Arsenal, northeast of Denver, for disposing of waste fluids from Arsenal operations. Injection was commenced March 1962, and an unusual series of earthquakes erupted in the area shortly after.

[snip]

Then, on April 10, the largest since the series began in 1962 occurred; 118 windowpanes were broken in buildings at the Rocky Mountain Arsenal, a crack in an asphalt parking lot was noted in the Derby area, and schools were dismissed in Boulder, where walls sustained cracks. Legislators quickly moved from beneath chandeliers in the Denver Capitol Building, fearing they might fall. The Colorado School of Mines rated this shock magnitude 5.0.

[snip]

During 1968, ten slight shocks were felt in Colorado. Only one, on July 15, caused minor damage at Commerce City. In September of that year, the Army began removing fluid from the Arsenal well at a very slow rate, in hope that earthquake activity would lessen....
Click to expand...
 
Re: Arkansas - Several earthquakes around Guy recently

Ark. cities feel unexplained surge in earthquakes


By SARAH EDDINGTON
The Associated Press
updated <abbr style="display: inline;" class="dtstamp updated" title="2011-02-17T09:13:13" itxtvisited="1">2/17/2011 4:13:13 AM ET</abbr> 2011-02-17T09:13:13

LITTLE ROCK, Ark. —

snip

The U.S. Geological Service has reported 29 in the area since Sunday, and 700 quakes have hit the region in the past six months.

More...
http://www.msnbc.msn.com/id/41638358/ns/us_news/
 
Last edited by a moderator:
Re: Arkansas - Several earthquakes around Guy recently

Earthquake List for Map Centered at 32?N, 90?W

Update time = Thu Feb 17 16:00:01 UTC 2011
Here are the earthquakes in the Map Centered at 32?N, 90?W area, most recent at the top.
(Some early events may be obscured by later ones.)
Click on the underlined portion of an earthquake record in the list below for more information.

<TABLE border=0 cellSpacing=1 cellPadding=1><TBODY><TR><TH></TH><TH align=middle>MAG </TH><TH align=middle>UTC DATE-TIME
y/m/d h:m:s
</TH><TH align=middle>LAT
deg
</TH><TH align=middle>LON
deg
</TH><TH align=middle>DEPTH
km
</TH><TH>LOCATION</TH></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.8 </TD><TD noWrap align=middle>2011/02/17 14:58:14</TD><TD noWrap align=right>35.267</TD><TD noWrap align=right>-92.367</TD><TD noWrap align=right>5.9</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/17 12:33:08</TD><TD noWrap align=right>35.278</TD><TD noWrap align=right>-92.354</TD><TD noWrap align=right>5.7</TD><TD>6 km ( 3 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/17 11:13:03</TD><TD noWrap align=right>35.281</TD><TD noWrap align=right>-92.372</TD><TD noWrap align=right>6.0</TD><TD>6 km ( 4 mi) SW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/17 10:55:35</TD><TD noWrap align=right>35.275</TD><TD noWrap align=right>-92.348</TD><TD noWrap align=right>6.7</TD><TD>6 km ( 4 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.8 </TD><TD noWrap align=middle>2011/02/17 10:49:48</TD><TD noWrap align=right>35.276</TD><TD noWrap align=right>-92.361</TD><TD noWrap align=right>6.5</TD><TD>6 km ( 4 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/17 06:19:33</TD><TD noWrap align=right>35.267</TD><TD noWrap align=right>-92.358</TD><TD noWrap align=right>6.1</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.6 </TD><TD noWrap align=middle>2011/02/17 06:02:44</TD><TD noWrap align=right>35.263</TD><TD noWrap align=right>-92.348</TD><TD noWrap align=right>6.2</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.6 </TD><TD noWrap align=middle>2011/02/17 04:09:40</TD><TD noWrap align=right>35.267</TD><TD noWrap align=right>-92.347</TD><TD noWrap align=right>6.4</TD><TD>6 km ( 4 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/17 02:53:26</TD><TD noWrap align=right>35.266</TD><TD noWrap align=right>-92.361</TD><TD noWrap align=right>6.4</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/17 02:44:16</TD><TD noWrap align=right>35.269</TD><TD noWrap align=right>-92.368</TD><TD noWrap align=right>4.9</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/17 01:36:45</TD><TD noWrap align=right>35.279</TD><TD noWrap align=right>-92.352</TD><TD noWrap align=right>6.1</TD><TD>5 km ( 3 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/16 23:05:54</TD><TD noWrap align=right>35.262</TD><TD noWrap align=right>-92.361</TD><TD noWrap align=right>5.1</TD><TD>4 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.5 </TD><TD noWrap align=middle>2011/02/16 21:46:17</TD><TD noWrap align=right>35.270</TD><TD noWrap align=right>-92.361</TD><TD noWrap align=right>6.6</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/02/16 21:31:59</TD><TD noWrap align=right>35.265</TD><TD noWrap align=right>-92.347</TD><TD noWrap align=right>6.3</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/16 21:30:01</TD><TD noWrap align=right>35.261</TD><TD noWrap align=right>-92.346</TD><TD noWrap align=right>6.3</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/16 17:26:41</TD><TD noWrap align=right>35.268</TD><TD noWrap align=right>-92.347</TD><TD noWrap align=right>5.9</TD><TD>6 km ( 4 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/16 17:21:06</TD><TD noWrap align=right>35.260</TD><TD noWrap align=right>-92.347</TD><TD noWrap align=right>6.1</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.9 </TD><TD noWrap align=middle>2011/02/16 17:07:02</TD><TD noWrap align=right>35.274</TD><TD noWrap align=right>-92.374</TD><TD noWrap align=right>5.9</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.8 </TD><TD noWrap align=middle>2011/02/16 15:52:36</TD><TD noWrap align=right>35.278</TD><TD noWrap align=right>-92.371</TD><TD noWrap align=right>6.2</TD><TD>6 km ( 4 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.7 </TD><TD noWrap align=middle>2011/02/16 14:39:08</TD><TD noWrap align=right>35.276</TD><TD noWrap align=right>-92.369</TD><TD noWrap align=right>6.0</TD><TD>6 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/16 14:26:29</TD><TD noWrap align=right>35.261</TD><TD noWrap align=right>-92.354</TD><TD noWrap align=right>5.6</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/02/16 11:15:27</TD><TD noWrap align=right>35.252</TD><TD noWrap align=right>-92.352</TD><TD noWrap align=right>6.3</TD><TD>4 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/02/16 11:10:21</TD><TD noWrap align=right>35.255</TD><TD noWrap align=right>-92.352</TD><TD noWrap align=right>5.9</TD><TD>4 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.6 </TD><TD noWrap align=middle>2011/02/16 10:53:13</TD><TD noWrap align=right>35.275</TD><TD noWrap align=right>-92.374</TD><TD noWrap align=right>5.8</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/16 09:30:13</TD><TD noWrap align=right>35.247</TD><TD noWrap align=right>-92.342</TD><TD noWrap align=right>6.2</TD><TD>5 km ( 3 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/16 05:01:27</TD><TD noWrap align=right>35.262</TD><TD noWrap align=right>-92.349</TD><TD noWrap align=right>6.6</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/16 04:53:16</TD><TD noWrap align=right>35.255</TD><TD noWrap align=right>-92.348</TD><TD noWrap align=right>6.4</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/16 04:34:50</TD><TD noWrap align=right>35.256</TD><TD noWrap align=right>-92.352</TD><TD noWrap align=right>6.4</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.0 </TD><TD noWrap align=middle>2011/02/16 00:38:34</TD><TD noWrap align=right>35.255</TD><TD noWrap align=right>-92.349</TD><TD noWrap align=right>6.2</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.7 </TD><TD noWrap align=middle>2011/02/15 22:35:23</TD><TD noWrap align=right>35.268</TD><TD noWrap align=right>-92.373</TD><TD noWrap align=right>5.6</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/15 18:49:03</TD><TD noWrap align=right>35.259</TD><TD noWrap align=right>-92.352</TD><TD noWrap align=right>6.2</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/15 12:25:22</TD><TD noWrap align=right>35.252</TD><TD noWrap align=right>-92.353</TD><TD noWrap align=right>5.6</TD><TD>4 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/15 12:12:36</TD><TD noWrap align=right>35.246</TD><TD noWrap align=right>-92.358</TD><TD noWrap align=right>4.1</TD><TD>3 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>1.1 </TD><TD noWrap align=middle>2011/02/15 10:42:11</TD><TD noWrap align=right>36.238</TD><TD noWrap align=right>-89.522</TD><TD noWrap align=right>6.1</TD><TD>5 km ( 3 mi) SW of Ridgely, TN</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/14 18:28:39</TD><TD noWrap align=right>35.332</TD><TD noWrap align=right>-92.300</TD><TD noWrap align=right>5.5</TD><TD>3 km ( 2 mi) ENE of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/02/14 17:08:07</TD><TD noWrap align=right>35.331</TD><TD noWrap align=right>-92.300</TD><TD noWrap align=right>5.0</TD><TD>3 km ( 2 mi) ENE of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>1.8 </TD><TD noWrap align=middle>2011/02/13 13:48:44</TD><TD noWrap align=right>35.307</TD><TD noWrap align=right>-92.319</TD><TD noWrap align=right>6.1</TD><TD>2 km ( 2 mi) SE of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>1.8 </TD><TD noWrap align=middle>2011/02/13 13:12:50</TD><TD noWrap align=right>36.262</TD><TD noWrap align=right>-89.287</TD><TD noWrap align=right>8.3</TD><TD>8 km ( 5 mi) S of Hornbeak, TN</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>1.9 </TD><TD noWrap align=middle>2011/02/13 10:30:56</TD><TD noWrap align=right>35.307</TD><TD noWrap align=right>-92.314</TD><TD noWrap align=right>4.3</TD><TD>3 km ( 2 mi) SE of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/13 07:10:34</TD><TD noWrap align=right>35.311</TD><TD noWrap align=right>-92.303</TD><TD noWrap align=right>4.7</TD><TD>3 km ( 2 mi) ESE of Guy, AR</TD></TR></TBODY></TABLE>

[...]
http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US10/27.37.-95.-85_eqs.php
 
Re: Arkansas - Several earthquakes around Guy recently

Earthquake List for Map Centered at 37?N, 95?W

Update time = Fri Feb 18 12:41:10 UTC 2011
Here are the earthquakes in the Map Centered at 37?N, 95?W area, most recent at the top.
(Some early events may be obscured by later ones.)
Click on the underlined portion of an earthquake record in the list below for more information.

<TABLE border=0 cellSpacing=1 cellPadding=1><TBODY><TR><TH></TH><TH align=middle>MAG </TH><TH align=middle>UTC DATE-TIME
y/m/d h:m:s
</TH><TH align=middle>LAT
deg
</TH><TH align=middle>LON
deg
</TH><TH align=middle>DEPTH
km
</TH><TH>LOCATION</TH></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.2 </TD><TD noWrap align=middle>2011/02/18 12:18:24</TD><TD noWrap align=right>35.264</TD><TD noWrap align=right>-92.368</TD><TD noWrap align=right>2.9</TD><TD>4 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>4.3 </TD><TD noWrap align=middle>2011/02/18 08:13:35</TD><TD noWrap align=right>35.271</TD><TD noWrap align=right>-92.377</TD><TD noWrap align=right>6.3</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.8 </TD><TD noWrap align=middle>2011/02/18 06:10:33</TD><TD noWrap align=right>35.194</TD><TD noWrap align=right>-92.378</TD><TD noWrap align=right>5.0</TD><TD>4 km ( 3 mi) SSE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>4.0 </TD><TD noWrap align=middle>2011/02/18 04:59:50</TD><TD noWrap align=right>35.257</TD><TD noWrap align=right>-92.370</TD><TD noWrap align=right>5.1</TD><TD>4 km ( 2 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.9 </TD><TD noWrap align=middle>2011/02/18 02:30:12</TD><TD noWrap align=right>35.280</TD><TD noWrap align=right>-92.340</TD><TD noWrap align=right>5.0</TD><TD>5 km ( 3 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.7 </TD><TD noWrap align=middle>2011/02/17 22:06:45</TD><TD noWrap align=right>35.265</TD><TD noWrap align=right>-92.365</TD><TD noWrap align=right>6.0</TD><TD>4 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/17 19:01:00</TD><TD noWrap align=right>35.253</TD><TD noWrap align=right>-92.352</TD><TD noWrap align=right>5.6</TD><TD>4 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/17 18:19:09</TD><TD noWrap align=right>35.262</TD><TD noWrap align=right>-92.357</TD><TD noWrap align=right>5.2</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR></TBODY></TABLE>
http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US10/32.42.-100.-90_eqs.php

http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US10/32.42.-100.-90.php
 
Re: Arkansas - Several earthquakes around Guy recently

There has been an increase in magnitude of the swarm quakes to a 4.3 early this morning. USGS has issued a press release about the phenomenon:

http://www.usgs.gov/newsroom/article.asp?ID=2706
Nearly 60 Small to Moderate Earthquakes Strike Arkansas and Are Widely Felt
Released: 2/18/2011 5:12:12 PM

Nearly 60 small and moderate earthquakes struck Arkansas since Feb. 15, 2011, the most recent a magnitude 4.3 earthquake this morning 37 miles away from Little Rock. Many of the earthquakes are large enough to be felt.

?These earthquake swarms are not that unusual for the region,? said Harley Benz, scientist in charge at the U.S. Geological Survey National Earthquake Information Center. ?Central Arkansas has a history of earthquake activity with a swarm of thousands of earthquakes smaller than magnitude 4.5 in the early 1980s and another swarm in 2001, known as the Enola earthquake swarms.?

Citizens are encouraged to report any experience feeling the earthquake(s) at the USGS Did You Feel It? website. The earthquake swarm that began Tuesday may continue. This area is slightly south of and most likely related to similar ongoing activity involving hundreds of small earthquakes near Guy, Ark., from August 2010 to present.

Scientists do not know why swarms start, why they stop, or how long to expect them to last. The possibility of a larger earthquake cannot be discounted, but none of the other swarms have caused any reason to expect a future earthquake large enough to cause significant damage in central Arkansas.

USGS scientists have been working with their partners at the Center for Earthquake Research and Information (CERI) at the University of Memphis and the Arkansas Geological Survey (AGS) to carefully monitor this situation. They have deployed a local network of stations ? an array ? that measure seismicity in the Greenbrier-Enola area to augment regional seismic stations. The CERI and AGS array and personnel are the best source of the most current information about the new earthquake swarm. The AGS and CERI are investigating whether the earthquakes occur naturally or are related to human activities.

Earthquake swarms are common east of the Rocky Mountains; other Central or Eastern U.S. swarms, however, have not involved as many small earthquakes as the central Arkansas swarms. Most of North America east of the Rocky Mountains has infrequent earthquakes that can strike anywhere at irregular intervals. The causes of earthquakes are not understood well enough to reliably make short-term predictions.
Click to expand...

Contact info at link.
 
Re: Arkansas - Several earthquakes around Guy recently

Earthquake List for Map Centered at 35?N, 92?W

Update time = Sun Feb 20 15:26:46 UTC 2011
Here are the earthquakes in the Map Centered at 35?N, 92?W area, most recent at the top.
(Some early events may be obscured by later ones.)
Click on the underlined portion of an earthquake record in the list below for more information.

<TABLE border=0 cellSpacing=1 cellPadding=1><TBODY><TR><TH></TH><TH align=middle>MAG </TH><TH align=middle>UTC DATE-TIME
y/m/d h:m:s

</TH><TH align=middle>LAT
deg

</TH><TH align=middle>LON
deg

</TH><TH align=middle>DEPTH
km

</TH><TH>LOCATION</TH></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.7 </TD><TD noWrap align=middle>2011/02/20 15:14:59</TD><TD noWrap align=right>35.228</TD><TD noWrap align=right>-92.401</TD><TD noWrap align=right>3.5</TD><TD>1 km ( 1 mi) W of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.0 </TD><TD noWrap align=middle>2011/02/20 07:04:56</TD><TD noWrap align=right>35.236</TD><TD noWrap align=right>-92.372</TD><TD noWrap align=right>6.7</TD><TD>2 km ( 1 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/20 07:04:00</TD><TD noWrap align=right>35.266</TD><TD noWrap align=right>-92.360</TD><TD noWrap align=right>6.4</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.4 </TD><TD noWrap align=middle>2011/02/19 23:04:58</TD><TD noWrap align=right>35.268</TD><TD noWrap align=right>-92.374</TD><TD noWrap align=right>6.7</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/19 04:51:36</TD><TD noWrap align=right>35.269</TD><TD noWrap align=right>-92.364</TD><TD noWrap align=right>6.1</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/19 01:57:23</TD><TD noWrap align=right>35.278</TD><TD noWrap align=right>-92.357</TD><TD noWrap align=right>5.8</TD><TD>6 km ( 3 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/18 21:25:30</TD><TD noWrap align=right>35.252</TD><TD noWrap align=right>-92.362</TD><TD noWrap align=right>5.4</TD><TD>4 km ( 2 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/18 18:50:41</TD><TD noWrap align=right>35.261</TD><TD noWrap align=right>-92.350</TD><TD noWrap align=right>5.7</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/18 18:40:42</TD><TD noWrap align=right>35.264</TD><TD noWrap align=right>-92.352</TD><TD noWrap align=right>6.5</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/18 16:04:23</TD><TD noWrap align=right>35.244</TD><TD noWrap align=right>-92.358</TD><TD noWrap align=right>7.0</TD><TD>3 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/18 15:14:10</TD><TD noWrap align=right>35.249</TD><TD noWrap align=right>-92.362</TD><TD noWrap align=right>5.4</TD><TD>3 km ( 2 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/18 13:06:50</TD><TD noWrap align=right>35.263</TD><TD noWrap align=right>-92.361</TD><TD noWrap align=right>6.6</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR></TBODY></TABLE>
http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US2/34.36.-93.-91_eqs.php

http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US2/34.36.-93.-91.php
 
Re: Arkansas - Several earthquakes around Guy recently

Earthquake List for Map Centered at 35?N, 92?W

Update time = Mon Feb 28 13:20:09 UTC 2011
Here are the earthquakes in the Map Centered at 35?N, 92?W area, most recent at the top.
(Some early events may be obscured by later ones.)
Click on the underlined portion of an earthquake record in the list below for more information.

<TABLE border=0 cellSpacing=1 cellPadding=1><TBODY><TR><TH></TH><TH align=middle>MAG </TH><TH align=middle>UTC DATE-TIME
y/m/d h:m:s
</TH><TH align=middle>LAT
deg
</TH><TH align=middle>LON
deg
</TH><TH align=middle>DEPTH
km
</TH><TH>LOCATION</TH></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.2 </TD><TD noWrap align=middle>2011/02/28 13:06:46</TD><TD noWrap align=right>35.285</TD><TD noWrap align=right>-92.394</TD><TD noWrap align=right>5.0</TD><TD>4 km ( 3 mi) SE of Twin Groves, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.6 </TD><TD noWrap align=middle>2011/02/28 08:46:11</TD><TD noWrap align=right>35.282</TD><TD noWrap align=right>-92.340</TD><TD noWrap align=right>2.6</TD><TD>5 km ( 3 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.8 </TD><TD noWrap align=middle>2011/02/28 05:18:00</TD><TD noWrap align=right>35.270</TD><TD noWrap align=right>-92.374</TD><TD noWrap align=right>4.2</TD><TD>5 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>4.7 </TD><TD noWrap align=middle>2011/02/28 05:00:50</TD><TD noWrap align=right>35.265</TD><TD noWrap align=right>-92.344</TD><TD noWrap align=right>3.8</TD><TD>6 km ( 4 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.4 </TD><TD noWrap align=middle>2011/02/26 14:35:02</TD><TD noWrap align=right>35.276</TD><TD noWrap align=right>-92.349</TD><TD noWrap align=right>2.9</TD><TD>6 km ( 3 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/25 16:17:47</TD><TD noWrap align=right>35.278</TD><TD noWrap align=right>-92.336</TD><TD noWrap align=right>4.1</TD><TD>5 km ( 3 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/25 14:32:22</TD><TD noWrap align=right>35.261</TD><TD noWrap align=right>-92.341</TD><TD noWrap align=right>4.6</TD><TD>6 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/25 14:05:26</TD><TD noWrap align=right>35.243</TD><TD noWrap align=right>-92.351</TD><TD noWrap align=right>4.8</TD><TD>4 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/25 14:05:13</TD><TD noWrap align=right>35.249</TD><TD noWrap align=right>-92.348</TD><TD noWrap align=right>4.0</TD><TD>4 km ( 3 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/25 13:16:48</TD><TD noWrap align=right>35.249</TD><TD noWrap align=right>-92.353</TD><TD noWrap align=right>3.8</TD><TD>4 km ( 2 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.5 </TD><TD noWrap align=middle>2011/02/25 09:49:01</TD><TD noWrap align=right>35.278</TD><TD noWrap align=right>-92.374</TD><TD noWrap align=right>5.9</TD><TD>6 km ( 3 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/25 08:57:11</TD><TD noWrap align=right>35.242</TD><TD noWrap align=right>-92.346</TD><TD noWrap align=right>4.1</TD><TD>4 km ( 3 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.1 </TD><TD noWrap align=middle>2011/02/25 08:49:57</TD><TD noWrap align=right>35.259</TD><TD noWrap align=right>-92.374</TD><TD noWrap align=right>6.2</TD><TD>4 km ( 2 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.8 </TD><TD noWrap align=middle>2011/02/25 08:16:26</TD><TD noWrap align=right>35.275</TD><TD noWrap align=right>-92.341</TD><TD noWrap align=right>2.6</TD><TD>6 km ( 3 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/25 07:10:10</TD><TD noWrap align=right>35.275</TD><TD noWrap align=right>-92.341</TD><TD noWrap align=right>3.9</TD><TD>6 km ( 3 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/25 04:36:30</TD><TD noWrap align=right>35.259</TD><TD noWrap align=right>-92.345</TD><TD noWrap align=right>4.5</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/24 17:28:13</TD><TD noWrap align=right>35.262</TD><TD noWrap align=right>-92.347</TD><TD noWrap align=right>4.5</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/24 16:30:53</TD><TD noWrap align=right>35.280</TD><TD noWrap align=right>-92.338</TD><TD noWrap align=right>4.9</TD><TD>5 km ( 3 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/02/24 16:23:56</TD><TD noWrap align=right>35.263</TD><TD noWrap align=right>-92.341</TD><TD noWrap align=right>3.9</TD><TD>6 km ( 4 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.7 </TD><TD noWrap align=middle>2011/02/24 15:07:11</TD><TD noWrap align=right>35.271</TD><TD noWrap align=right>-92.333</TD><TD noWrap align=right>4.5</TD><TD>6 km ( 4 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/24 15:01:17</TD><TD noWrap align=right>35.262</TD><TD noWrap align=right>-92.342</TD><TD noWrap align=right>4.6</TD><TD>6 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.8 </TD><TD noWrap align=middle>2011/02/24 12:18:49</TD><TD noWrap align=right>35.295</TD><TD noWrap align=right>-92.350</TD><TD noWrap align=right>4.1</TD><TD>4 km ( 2 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.6 </TD><TD noWrap align=middle>2011/02/24 11:12:22</TD><TD noWrap align=right>35.282</TD><TD noWrap align=right>-92.336</TD><TD noWrap align=right>4.9</TD><TD>5 km ( 3 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/24 10:21:26</TD><TD noWrap align=right>35.273</TD><TD noWrap align=right>-92.331</TD><TD noWrap align=right>4.5</TD><TD>6 km ( 4 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/24 09:57:28</TD><TD noWrap align=right>35.286</TD><TD noWrap align=right>-92.349</TD><TD noWrap align=right>4.3</TD><TD>4 km ( 3 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.7 </TD><TD noWrap align=middle>2011/02/24 09:12:16</TD><TD noWrap align=right>35.285</TD><TD noWrap align=right>-92.347</TD><TD noWrap align=right>4.6</TD><TD>5 km ( 3 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.2 </TD><TD noWrap align=middle>2011/02/24 07:35:24</TD><TD noWrap align=right>35.340</TD><TD noWrap align=right>-92.315</TD><TD noWrap align=right>4.7</TD><TD>2 km ( 2 mi) NE of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/24 05:43:26</TD><TD noWrap align=right>35.271</TD><TD noWrap align=right>-92.339</TD><TD noWrap align=right>5.4</TD><TD>6 km ( 4 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/24 04:43:17</TD><TD noWrap align=right>35.292</TD><TD noWrap align=right>-92.344</TD><TD noWrap align=right>5.1</TD><TD>4 km ( 2 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/24 04:30:13</TD><TD noWrap align=right>35.241</TD><TD noWrap align=right>-92.365</TD><TD noWrap align=right>4.6</TD><TD>3 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/24 04:03:40</TD><TD noWrap align=right>35.267</TD><TD noWrap align=right>-92.346</TD><TD noWrap align=right>5.4</TD><TD>6 km ( 4 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.8 </TD><TD noWrap align=middle>2011/02/24 04:03:04</TD><TD noWrap align=right>35.244</TD><TD noWrap align=right>-92.377</TD><TD noWrap align=right>6.0</TD><TD>2 km ( 1 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/02/24 01:11:54</TD><TD noWrap align=right>35.259</TD><TD noWrap align=right>-92.342</TD><TD noWrap align=right>3.9</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.3 </TD><TD noWrap align=middle>2011/02/24 00:32:56</TD><TD noWrap align=right>35.275</TD><TD noWrap align=right>-92.343</TD><TD noWrap align=right>3.9</TD><TD>6 km ( 3 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.6 </TD><TD noWrap align=middle>2011/02/24 00:29:03</TD><TD noWrap align=right>35.275</TD><TD noWrap align=right>-92.332</TD><TD noWrap align=right>5.2</TD><TD>6 km ( 3 mi) S of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.4 </TD><TD noWrap align=middle>2011/02/24 00:24:45</TD><TD noWrap align=right>35.287</TD><TD noWrap align=right>-92.356</TD><TD noWrap align=right>3.9</TD><TD>5 km ( 3 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.0 </TD><TD noWrap align=middle>2011/02/23 21:34:55</TD><TD noWrap align=right>35.267</TD><TD noWrap align=right>-92.338</TD><TD noWrap align=right>3.8</TD><TD>6 km ( 4 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.8 </TD><TD noWrap align=middle>2011/02/23 15:27:21</TD><TD noWrap align=right>35.282</TD><TD noWrap align=right>-92.353</TD><TD noWrap align=right>5.3</TD><TD>5 km ( 3 mi) SSW of Guy, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/23 11:02:53</TD><TD noWrap align=right>35.266</TD><TD noWrap align=right>-92.339</TD><TD noWrap align=right>5.1</TD><TD>6 km ( 4 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/23 10:19:15</TD><TD noWrap align=right>35.238</TD><TD noWrap align=right>-92.362</TD><TD noWrap align=right>4.1</TD><TD>3 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/02/23 09:49:55</TD><TD noWrap align=right>35.263</TD><TD noWrap align=right>-92.346</TD><TD noWrap align=right>5.5</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/02/23 06:36:14</TD><TD noWrap align=right>35.262</TD><TD noWrap align=right>-92.342</TD><TD noWrap align=right>4.0</TD><TD>6 km ( 4 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.0 </TD><TD noWrap align=middle>2011/02/23 04:06:57</TD><TD noWrap align=right>35.263</TD><TD noWrap align=right>-92.339</TD><TD noWrap align=right>4.1</TD><TD>6 km ( 4 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.0 </TD><TD noWrap align=middle>2011/02/22 18:29:46</TD><TD noWrap align=right>35.265</TD><TD noWrap align=right>-92.348</TD><TD noWrap align=right>5.6</TD><TD>5 km ( 3 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/02/22 01:46:33</TD><TD noWrap align=right>35.245</TD><TD noWrap align=right>-92.391</TD><TD noWrap align=right>4.8</TD><TD>2 km ( 1 mi) N of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.6 </TD><TD noWrap align=middle>2011/02/21 23:10:20</TD><TD noWrap align=right>35.246</TD><TD noWrap align=right>-92.389</TD><TD noWrap align=right>4.8</TD><TD>2 km ( 1 mi) N of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/02/21 23:09:47</TD><TD noWrap align=right>35.239</TD><TD noWrap align=right>-92.372</TD><TD noWrap align=right>7.0</TD><TD>2 km ( 1 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>1.8 </TD><TD noWrap align=middle>2011/02/21 17:42:08</TD><TD noWrap align=right>35.239</TD><TD noWrap align=right>-92.370</TD><TD noWrap align=right>6.7</TD><TD>2 km ( 1 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>1.8 </TD><TD noWrap align=middle>2011/02/21 17:39:25</TD><TD noWrap align=right>35.235</TD><TD noWrap align=right>-92.362</TD><TD noWrap align=right>7.5</TD><TD>3 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/02/21 17:31:59</TD><TD noWrap align=right>35.251</TD><TD noWrap align=right>-92.364</TD><TD noWrap align=right>7.2</TD><TD>3 km ( 2 mi) NE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.6 </TD><TD noWrap align=middle>2011/02/21 16:21:58</TD><TD noWrap align=right>35.253</TD><TD noWrap align=right>-92.388</TD><TD noWrap align=right>6.3</TD><TD>3 km ( 2 mi) N of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.4 </TD><TD noWrap align=middle>2011/02/21 16:17:32</TD><TD noWrap align=right>35.265</TD><TD noWrap align=right>-92.385</TD><TD noWrap align=right>6.0</TD><TD>4 km ( 2 mi) N of Greenbrier, AR</TD></TR></TBODY></TABLE>


http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US2/34.36.-93.-91_eqs.php

http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US2/34.36.-93.-91.php
 
Re: Arkansas - Several earthquakes around Guy recently

Arkansas Suspends Drilling of Injection Wells after Earthquake Swarm

Wednesday, March 02, 2011

After months of earthquakes, including the largest felt in 35 years, the state of Arkansas has ordered a temporary moratorium on the drilling of new injection wells related to natural gas-related drilling, which some locals believe are causing the seismic activity. More than 700 small earthquakes have been recorded in north-central Arkansas in the last six months.
...
The Arkansas Oil and Gas Commission imposed an emergency stoppage on the drilling of new injection wells in the central part of the state after a 4.7 quake shook the area near Greenbrier on February 27.


Full text:
http://www.allgov.com/Controversies...Injection_Wells_after_Earthquake_Swarm_110302
 
Re: Arkansas - Several earthquakes around Guy recently

Earthquake List for Map Centered at 37?N, 90?W

Update time = Fri Apr 8 0:00:05 UTC 2011
Here are the earthquakes in the Map Centered at 37?N, 90?W area, most recent at the top.
(Some early events may be obscured by later ones.)
Click on the underlined portion of an earthquake record in the list below for more information.

<TABLE border=0 cellSpacing=1 cellPadding=1><TBODY><TR><TH></TH><TH align=middle>MAG </TH><TH align=middle>UTC DATE-TIME
y/m/d h:m:s
</TH><TH align=middle>LAT
deg
</TH><TH align=middle>LON
deg
</TH><TH align=middle>DEPTH
km
</TH><TH>LOCATION</TH></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>4.0 </TD><TD noWrap align=middle>2011/04/07 23:11:09</TD><TD noWrap align=right>35.250</TD><TD noWrap align=right>-92.373</TD><TD noWrap align=right>6.1</TD><TD>3 km ( 2 mi) NNE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.5 </TD><TD noWrap align=middle>2011/04/07 10:03:34</TD><TD noWrap align=right>35.243</TD><TD noWrap align=right>-92.359</TD><TD noWrap align=right>3.2</TD><TD>3 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/04/07 09:48:00</TD><TD noWrap align=right>35.247</TD><TD noWrap align=right>-92.351</TD><TD noWrap align=right>4.0</TD><TD>4 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.4 </TD><TD noWrap align=middle>2011/04/07 06:01:56</TD><TD noWrap align=right>35.243</TD><TD noWrap align=right>-92.349</TD><TD noWrap align=right>4.6</TD><TD>4 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/04/07 05:56:21</TD><TD noWrap align=right>35.240</TD><TD noWrap align=right>-92.358</TD><TD noWrap align=right>2.9</TD><TD>3 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.2 </TD><TD noWrap align=middle>2011/04/07 05:25:47</TD><TD noWrap align=right>35.240</TD><TD noWrap align=right>-92.365</TD><TD noWrap align=right>5.7</TD><TD>2 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/04/07 04:28:51</TD><TD noWrap align=right>35.238</TD><TD noWrap align=right>-92.352</TD><TD noWrap align=right>3.7</TD><TD>3 km ( 2 mi) ENE of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>3.4 </TD><TD noWrap align=middle>2011/04/07 02:34:50</TD><TD noWrap align=right>35.232</TD><TD noWrap align=right>-92.367</TD><TD noWrap align=right>6.3</TD><TD>2 km ( 1 mi) E of Greenbrier, AR</TD></TR><TR><TD noWrap align=middle>MAP</TD><TD noWrap align=middle>2.1 </TD><TD noWrap align=middle>2011/04/06 03:05:17</TD><TD noWrap align=right>35.227</TD><TD noWrap align=right>-92.380</TD><TD noWrap align=right>4.7</TD><TD>1 km ( 1 mi) ESE of Greenbrier, AR</TD></TR></TBODY></TABLE>
http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US10/32.42.-95.-85_eqs.php

Map Centered at 37?N, 90?W

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http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US10/32.42.-95.-85.php
 
Re: Arkansas - Several earthquakes around Guy recently

There has been a cluster of small (3.4 M or less) but noticeable quakes again in this area again. (The injections wells were plugged with cement during the past couple of weeks.) The AGS says that it could take years for the earthquakes to settle down after injection activities stopped.

http://www.todaysthv.com/news/article/175843/2/Several-earthquakes-in-Arkansas-this-week
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