Phase Data

Explanation of Parameters


     28 FEB 2011  ( 59)

     ot  = 08:46:11.76   +/-   2.75              ARKANSAS                        
     lat =      35.276   +/-    6.3
     lon =     -92.368   +/-    4.6              MAGNITUDE 3.6 (GS)       
     dep =         4.9   +/-    2.0   

     20 km (15 miles) NNE of Conway, Arkansas (pop 43,000)
     60 km (35 miles) W of Searcy, Arkansas (pop 18,000)
     60 km (35 miles) N of LITTLE ROCK, Arkansas (pop 183,000)
     70 km (45 miles) SSW of Mountain View, Arkansas (pop 2,800)

     nph =   78 of  98    se = 1.36    FE=502                            A   

     error ellipse = (172.0,  0.0,  9.6; 82.0,  1.0,  6.9;275.0, 88.0,  3.0)

 mb = 0.0 (  0)  ML = 0.0 (  0)  mblg = 3.6 ( 50)  md = 4.6 (  2)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 WHAR ePg     08:46:12.69  -0.6    0.1  78                                   WHAR
      eSg     08:46:13.80  S res =  -0.6 
 UALR ePg     08:46:21.19  -0.2    0.5 178 d:3.1+2     4.3  g:1.3-1 .90 2.7  UALR
      eSg     08:46:30.40  S res =   2.5 
 MIAR ePg     08:46:34.75  -0.6    1.2 234 d:4.1+2     4.8                   MIAR
      eSg     08:46:50.74  S res =  -0.6 
 HBAR ePn     08:46:37.08  -1.2    1.4  78                                   HBAR
      eSn     08:46:56.05  S res =  -1.4 
 CCAR ePn     08:46:37.75  -0.8    1.4 160                                   CCAR
      eSn     08:46:57.96  S res =   0.1 
 QUAR ePn     08:46:37.77  -0.9    1.4  75                                   QUAR
 HHAR ePn     08:46:41.01  -0.1    1.6 309                                   HHAR
      eSn     08:47:03.11  S res =   0.7 
 MET  ePn     08:46:42.30  -3.9    2.0  94 g:6.6-1 .90 4.0                   MET 
      eSn     08:47:11.14  S res =  -0.5 
 WLAR ePn     08:46:42.50   0.4    1.7 201 g:1.3-1 .77 3.2                   WLAR
 DLAR ePn     08:46:46.52   0.4    2.0  74                                   DLAR
      eSn     08:47:12.24  S res =   0.7 
 GNAR ePn     08:46:46.68   0.0    2.0  70                                   GNAR
      eSn     08:47:14.06  S res =   1.6 
 PBMO ePn     08:46:49.23   0.7    2.2  46 g:5.9-1 .73 4.0                   PBMO
 EBZ  ePn     08:46:52.27  -0.5    2.5  92                                   EBZ 
      eSn     08:47:22.75  S res =  -0.6 
 OXF  ePn     08:46:53.20  -0.6    2.5 107                                   OXF 
 HALT ePn     08:46:53.23  -0.5    2.5  75                                   HALT
 PARMOePn     08:46:54.31   0.8    2.5  56                                   PARM
      eSn     08:47:28.71  S res =   3.9 
 RELT ePn     08:46:54.66   0.1    2.6  72                                   RELT
 GLAT ePn     08:46:55.66  -0.1    2.7  68                                   GLAT
      eSn     08:47:28.94  S res =   0.2 
 TUL1 ePn     08:46:58.46   0.4    2.9 284 g:1.3-1 .73 3.4                   TUL1
 GLST ePn     08:47:00.74   5.0    2.7  68                                   GLST
 UTMT ePn     08:47:00.81   0.3    3.0  68 g:2.9-1 .73 3.8                   UTMT
 SIUC ePn     08:47:07.58   0.5    3.5  45 g:2.6-1 .80 3.8                   SIUC
 SFTN eSn     08:47:10.58   0.9    1.9  87                                   SFTN
 NATX ePn     08:47:14.42   0.8    4.0 209 g:9.0-2 .75 3.4                   NATX
      eSn     08:48:01.65  S res =   0.8 
 V34A ePn     08:47:17.28   0.3    4.2 279 g:5.0-2 .75 3.2                   V34A
 U34A ePn     08:47:19.00   0.4    4.4 287 g:1.5-1 .98 3.7                   U34A
 W34A ePn     08:47:20.25   0.7    4.4 271 g:9.0-2 .75 3.5                   W34A
 USIN ePn     08:47:22.23  -0.2    4.6  53 g:1.5-1 1.0 3.7                   USIN
      eSb     08:48:34.31  S res =   4.6 
 WADM eSn     08:47:24.02   3.6    2.4  62                                   WADM
 OLIL ePn     08:47:25.46   0.0    4.9  43 g:3.4-1 1.2 4.1                   OLIL
 KSU1 ePn     08:47:27.27  -1.6    5.1 320 g:2.4-1 1.0 4.0                   KSU1
 SWET ePn     08:47:30.27  -0.9    5.3  89 g:9.0-2 .73 3.6                   SWET
 WMOK ePn     08:47:31.81   0.3    5.3 266 g:9.0-2 .77 3.6                   WMOK
      eSb     08:48:54.04  S res =   5.5 
 WHTX ePn     08:47:33.65   1.2    5.4 234 g:2.0-2 .90 2.8                   WHTX
 WCI  ePn     08:47:35.28  -1.7    5.7  57 g:7.0-2 .85 3.5                   WCI 
 BLO  ePn     08:47:41.40  -0.8    6.1  49 g:1.5-1 .98 3.8                   BLO 
 ABTX ePn     08:47:43.94  -5.5    6.6 248 g:2.0-2 .85 3.0                   ABTX
 CPCT ePn     08:47:46.73  -0.2    6.4  86                                   CPCT
 CBKS ePn     08:47:52.76  -0.4    6.9 303 g:1.2-1 .80 3.8                   CBKS
      eSn     08:49:13.28  S res =   1.5 
      eSg     08:49:48.47  S res =  -3.8 
 TKL  ePn     08:47:54.31  -1.0    7.0  84 g:5.0-2 .93 3.5                   TKL 
      eSn     08:49:13.09  S res =  -2.4 
 GOGA ePn     08:48:01.70  -1.4    7.6 102 g:5.0-2 1.0 3.5                   GOGA
      eSn     08:49:25.15  S res =  -4.4 
      eSb     08:49:55.54  S res =   0.8 
 BGNE ePn     08:48:03.13  -0.4    7.6 325 g:1.3-1 .80 3.9                   BGNE
      eSg     08:50:10.29  S res =  -6.1 
 JCT  ePn     08:48:05.06  -1.9    7.9 235 g:2.0-2 .85 3.1                   JCT 
 JFWS ePn     08:48:05.63  -0.3    7.8  12 g:1.1-1 .75 3.8                   JFWS
      eSb     08:50:11.29  S res =  10.6 
 MSTX ePn     08:48:16.40  -1.6    8.7 264 g:3.0-2 1.0 3.3                   MSTX
 ACSO ePn     08:48:20.33  -1.0    8.9  54 g:4.0-2 .80 3.5                   ACSO
 KSCO ePn     08:48:20.77  -1.7    9.0 298 g:7.0-2 .75 3.7                   KSCO
 ECSD ePn     08:48:22.26  -0.9    9.1 340                                   ECSD
 SDCO ePn     08:48:50.55   2.5   10.9 287                                   SDCO
 TX31 ePn     08:48:51.95  -1.3   11.2 241                                   TX31
 MNTX ePn     08:48:55.68  -0.1   11.4 256                                   MNTX
 SFIN eSb     08:49:33.25   7.6    6.6  38 g:1.9-1 .90 4.0                   SFIN
 SCIA eSb     08:49:38.20  10.5    6.7 355 g:1.6-1 .70 3.9                   SCIA
 LPM  eLR     08:52:28.47         11.8 269                                   LPM 
 N23A eLR     08:52:30.50         12.1 302                                   N23A
 S22A eLg     08:52:37.42  -3.3X  11.9 286                                   S22A
 CBN  eLR     08:52:40.81         12.4  72                                   CBN 
 EYMN eLR     08:52:53.61         12.7   3                                   EYMN
 K22A eLR     08:53:07.90         13.2 308                                   K22A
 SRU  eLR     08:54:07.86         15.0 290                                   SRU 
 P17A eLR     08:54:12.12         15.2 291                                   P17A
 PD31 eLR     08:54:19.57         15.3 304                                   PD31
 BW06 eLR     08:54:19.61         15.3 304                                   BW06
      eLR     08:54:21.54                                  
 Q16A eLR     08:54:25.13         15.4 289                                   Q16A
 TMUT eLR     08:54:26.90         15.5 291                                   TMUT
 JLU  eLR     08:54:37.55         16.0 295                                   JLU 
      eScP    08:58:33.07   2.9 
 PKCU eLR     08:54:44.50         16.2 284                                   PKCU
 VLDQ eLR     08:55:03.47         16.8  36                                   VLDQ
 IMU  eLR     08:55:12.09         16.9 288                                   IMU 
      eScP    08:58:33.99   2.0 
 HVU  eLR     08:55:14.46         17.2 298                                   HVU 
 LBNH eLR     08:55:45.70         18.0  54                                   LBNH
 KMRM eS      08:56:10.62   6.6   25.2 291                                   KMRM
 PFO  eScS    09:02:22.30   1.4X  19.9 272                                   PFO 



 Generated 2011 FEB 28 at 09:24 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver