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Earthquake Activity


Phase Data

Explanation of Parameters

     10 FEB 2005  ( 41)

     ot  = 14:04:53.45   +/-   0.35              ARKANSAS                        
     lat =      35.748   +/-    3.4
     lon =     -90.233   +/-    3.5              MAGNITUDE 4.2 (GS)       
     dep =        10.0  (geophysicist)

     35 km (20 miles) SW of Blytheville, Arkansas (pop 18,000)
     40 km (25 miles) SE of Paragould, Arkansas (pop 22,000)
     70 km (45 miles) NNW of Memphis, Tennessee (pop 650,000)
     220 km (135 miles) ENE of LITTLE ROCK, Arkansas

     nph =   19 of  50    se = 0.64    FE=502                            A   

     error ellipse = (132.9,  0.0,  5.1;222.9,  0.0,  4.0;  0.0,  0.0,  0.0)

 mb = 4.4 (  4)  ML = 0.0 (  0)  mblg = 4.4 (  9)  md = 3.5 (  8)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 GNAR eP      14:05:00.09   1.0    0.3  39 d:3.5+2     3.6                   GNAR
 HBAR eP      14:05:01.87   0.6    0.4 241 d:4.3+2     3.8                   HBAR
 MET  eP      14:05:05.77  -0.7    0.7 159 d:2.1+2     3.1                   MET 
 HALT P       14:05:08.07   0.3    0.7  77 d:2.8+2     3.4                   HALT
 PVMO eP      14:05:08.44  -0.3    0.8  33 d:1.2+2     2.6                   PVMO
 GLAT eP      14:05:11.28   0.0    0.9  56 d:3.9+2     3.7                   GLAT
 UTMT eP      14:05:16.32  -0.8    1.3  61 d:2.7+2     3.4  g:9.4+0 .65 5.0  UTMT
 OXF  eP      14:05:18.88  -0.2    1.4 151                                   OXF 
 WVT  eP      14:05:26.64  -0.5    2.0  78                                   WVT 
 PLAL qP      14:05:26.71   0.5    1.9 113 d:3.7+1     1.4X                  PLAL
 UALR eP      14:05:26.77  -0.3    2.0 241 d:4.4+2     3.8  g:2.7+0 .90 4.5  UALR
 FVM  P       14:05:29.76  -0.8    2.2 356                                   FVM 
 CCM  P       14:05:33.03  -0.3    2.4 341                                   CCM 
 SLM  P       14:05:39.93   0.5    2.9 360 d:2.5+2     3.3X g:7.6-1 .70 4.2  SLM 
 MIAR P       14:05:41.20   0.3    3.0 247                                   MIAR
 USIN P       14:05:41.54   0.2    3.0  42 d:3.1+2     3.5X g:1.4+0 .85 4.4  USIN
 LRAL ePn     14:05:51.87  -0.2    3.8 134 g:1.5+0 .83 4.5                   LRAL
 WCI  ePn     14:05:54.35  -0.6    4.0  51 d:4.5+2     3.9X g:1.1+0 .75 4.5  WCI 
 CPCT P       14:06:05.24   1.3    4.7  92                                   CPCT
 NATX P       14:06:14.48   0.1X   5.4 224 b:1.2+2 .48 5.8X                  NATX
 KSU1 P       14:06:22.69  -0.7X   6.1 305                                   KSU1
 AAM  P       14:06:33.08 -20.8X   8.3  36 d:2.9+1     1.1X                  AAM 
 WMOK P       14:06:35.64  -1.3X   7.1 264 b:3.5+1 .35 5.9X                  WMOK
 JFWS P       14:06:39.34   1.2X   7.2 360 b:1.4+2 .53 6.4X                  JFWS
 HKT  P       14:06:41.26  -1.0X   7.5 221 b:2.4+1 .95 5.4X                  HKT 
 ACSO P       14:06:42.04   2.4X   7.3  50 b:3.7+1 .55 5.8X                  ACSO
 CBKS P       14:06:51.48  -0.6X   8.2 295 g:4.8-1 .93 4.5  b:1.1+2 1.0 6.0X CBKS
 AMTX P       14:07:07.17  -1.8X   9.4 268 b:4.4+1 .50 6.1X                  AMTX
 JCT  P       14:07:10.40  -1.2X   9.6 239 b:2.7+1 .50 5.9X                  JCT 
 ALLY P       14:07:20.27   5.3X   9.8  50 d:1.8+1     0.7X                  ALLY
 SSPA P       14:07:27.84  -1.2X  10.9  60 b:6.5+0 .50 5.2X                  SSPA
 CPRX P       14:07:36.37  -2.7X  11.6 260                                   CPRX
 EYMN P       14:07:43.20  -4.4X  12.2 356 b:1.6+1 .45 5.6X                  EYMN
 GDL2 P       14:07:46.23  -1.9X  12.3 257                                   GDL2
 SDCO P       14:07:48.94  -1.5X  12.4 284 b:1.6+1 .68 5.4X                  SDCO
 ISCO P       14:07:53.06  -3.0X  12.8 293 b:1.0+1 .60 5.2X                  ISCO
 MNTX P       14:07:58.74  -2.8X  13.2 257 b:3.0+1 .75 5.5X                  MNTX
 ANMO P       14:08:11.04   8.9X  13.3 271 b:6.2+0 .85 4.7X                  ANMO
 PHWY P       14:08:15.14  14.7X  13.1 300                                   PHWY
 PQI  e       14:08:16.98 -67.9X  19.9  50 g:4.5-2 .64 4.3                   PQI 
 LKWY e       14:08:20.18 -40.3X  17.7 306 g:4.5-3 .73 3.2X                  LKWY
 ULM  P       14:08:24.10  -2.1X  15.1 346 b:8.2+0 .60 4.3                   ULM 
 PV10 P       14:08:30.03   1.1X  15.2 285                                   PV10
 DGMT P       14:08:44.02   0.8X  16.4 325 g:2.5-2 .73 3.8  b:1.6+1 .43 4.5  DGMT
 TRCR P       14:08:50.51 -40.1X  20.4 285                                   TRCR
 MSU  P       14:08:58.55  -1.8X  17.7 285                                   MSU 
 HWUT P       14:09:00.53   1.1X  17.6 296 g:8.3-3 .98 3.3X b:6.5+0 .85 3.8  HWUT
 LAO  P       14:09:03.74  22.3X  16.2 317                                   LAO 
 MCMT P       14:09:27.31   7.0X  19.4 305                                   MCMT
 FCC  P       14:09:58.95  -0.9X  23.2 355 b:1.0+1 .88 4.4                   FCC 



 Generated 2005 FEB 10 at 14:20 UTC

 

First Government graphic