Phase Data

Explanation of Parameters


     24 FEB 2013  ( 55)

     ot  = 09:00:00.49   +/-   2.23              COLOMBIA-ECUADOR BORDER REGION  
     lat =       0.975   +/-    8.6
     lon =     -78.502   +/-   15.1              MAGNITUDE 4.4 (GS)       
     dep =         9.0   +/-    3.1   

     81 km (50 miles) NNW of Ibarra, Ecuador (pop 108,000)
     97 km (61 miles) SSE of Tumaco, Colombia (pop 82,000)
     132 km (82 miles) N of QUITO, Ecuador (pop 1,399,000)
     133 km (83 miles) E of Esmeraldas, Ecuador (pop 95,000)

     nph =   27 of  34    se = 1.10    FE=106                            A   

     error ellipse = (259.0,  0.0, 23.6;169.0,  4.0, 12.7;355.0, 85.0,  4.6)

 mb = 4.4 ( 28)  ML = 0.0 (  0)  mblg = 0.0 (  0)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 OTAV ePg     09:00:14.46  -0.3    0.7 176                                   OTAV
      ePn     09:00:22.45   5.0X
 ROSC ePn     09:01:27.19   1.8    5.7  47                                   ROSC
 BCIP ePn     09:01:58.47  -1.9    8.3 351                                   BCIP
 JTS  ePn     09:02:34.99  -6.8   11.3 326                                   JTS 
 SDV  ePn     09:02:38.85  -0.8   11.1  45                                   SDV 
 PTGA eP      09:04:19.10   0.7   18.6  95 b:6.7+0 .90 3.8                   PTGA
 LPAZ eP      09:04:32.67  -1.3   20.0 150 b:4.7+0 .65 4.0                   LPAZ
 CCIG eP      09:04:35.74  -1.3   20.3 319 b:5.7+0 1.1 3.8                   CCIG
 SJG  eP      09:04:41.05  -2.4   20.9  35 b:1.8+1 1.0 4.4                   SJG 
 CBYP eP      09:04:44.44  -2.3   21.2  35 b:3.1+1 1.1 4.6                   CBYP
 MNMC eP      09:04:52.85  -0.6   21.8 157 b:9.6+0 .80 4.3                   MNMC
 PB11 eP      09:04:59.11  -0.1   22.4 158                                   PB11
 LRAL eP      09:06:36.34   1.5   32.9 347 b:4.4+0 1.1 4.3                   LRAL
 ROC1 eP      09:06:39.16 -10.2X  34.5 169 b:1.0+1 1.0 4.7                   ROC1
 CPCT eP      09:06:44.27  -7.0X  34.8 351 b:6.8+0 1.1 4.4                   CPCT
 V48A eP      09:06:50.12  -7.0X  35.4 348 b:6.3+0 .80 4.5                   V48A
 T25A eP      09:08:02.30   0.0   43.2 329 b:3.9+0 .70 4.3                   T25A
 SDCO eP      09:08:05.32  -5.3X  44.2 329 b:4.9+0 .90 4.4                   SDCO
 SMCO eP      09:08:25.97   0.6   46.1 329 b:2.7+0 .85 4.3                   SMCO
 PV13 eP      09:08:26.67  -0.4   46.3 327 b:5.7+0 .80 4.7                   PV13
 PV03 eP      09:08:28.04   0.4   46.4 327 b:4.8+0 .80 4.6                   PV03
 PV12 eP      09:08:28.51   0.7   46.4 327 b:6.7+0 .76 4.8                   PV12
 PV17 eP      09:08:28.70   0.4   46.5 327 b:5.6+0 .82 4.7                   PV17
 BATG eP      09:08:29.81  -5.1X  47.4  12 b:1.2+1 1.1 4.9                   BATG
 GLA  eP      09:08:32.54   2.5   46.7 317 b:1.3+1 .95 5.0                   GLA 
 RSSD eP      09:08:45.94   1.3   48.6 336 b:7.6+0 .80 4.8                   RSSD
 ULM  eP      09:09:04.33  -0.4   51.3 346 b:5.6+0 .75 4.6                   ULM 
 NV11 eP      09:09:11.63   0.7   52.0 321 b:3.0-1 .90 3.2                   NV11
 NV01 eP      09:09:12.26   0.6   52.1 320                                   NV01
 BOZ  eP      09:09:19.42   0.3   53.2 331 b:3.8+0 1.0 4.3                   BOZ 
 SCHQ eP      09:09:22.11  -6.6X  54.5   8 b:1.2+1 1.0 4.8                   SCHQ
 SFJD eP      09:11:05.33   1.1   68.7  11 b:8.6+0 .95 4.9                   SFJD
 RES  eP      09:11:38.06   0.5   74.3 356 b:2.4+0 1.1 4.1                   RES 



 Generated 2013 FEB 24 at 10:20 UTC

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