Phase Data

Explanation of Parameters


      8 MAY 2013  (128)

     ot  = 07:28:35.70   +/-   1.29              MAUG ISLANDS REG, N. MARIANA IS.
     lat =      19.085   +/-    5.2
     lon =     145.228   +/-   21.5              MAGNITUDE 4.2 (GS)       
     dep =       212.8   +/-    9.8   

     58 km (36 miles) NW of Agrihan, Northern Mariana Islands (pop < 10)
     122 km (76 miles) NNW of Pagan, Northern Mariana Islands (pop < 10)
     433 km (269 miles) N of SAIPAN, Northern Mariana Islands
     622 km (387 miles) N of HAGATNA, Guam

     nph =   27 of  38    se = 0.63    FE=216                            A   

     error ellipse = (265.0,  0.0, 33.3;173.0, 64.0, 16.6;355.0, 25.0,  1.8)

 mb = 4.2 ( 48)  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
 SARN ePn     07:29:18.56  -1.1    2.4 167                                   SARN
 ANA2 ePn     07:29:23.75   0.3    2.8 170                                   ANA2
 GUMO ePn     07:29:57.66   1.2    5.5 184                                   GUMO
 LUWI eP      07:34:22.49  -0.3   29.8 230 b:5.8+2 .40 6.6                   LUWI
 WRA  eP      07:35:51.61  -0.3   40.2 196 b:3.8+0 1.1 3.8                   WRA 
 WB2  eP      07:35:52.28   0.4   40.2 196 b:1.0+1 .50 4.6                   WB2 
 FITZ eP      07:36:04.85   1.3   41.7 209 b:7.8+0 .90 4.2                   FITZ
 AS31 eP      07:36:22.30   0.8   43.9 195 b:1.2+0 .55 3.6                   AS31
 SVW2 eP      07:38:11.62   0.9   58.7  29 b:2.6+0 .68 4.1                   SVW2
 CAST eP      07:38:26.76   0.6   61.0  27 b:6.0+0 .72 4.4                   CAST
 RC01 eP      07:38:29.19  -0.2X  61.4  30 b:5.4+0 .60 4.5                   RC01
 BPAW eP      07:38:30.94   0.4X  61.6  27 b:5.8+0 .72 4.4                   BPAW
 PMR  eP      07:38:31.38  -0.6   61.8  30 b:3.3+0 .80 4.2                   PMR 
 MLY  eP      07:38:33.46   0.6X  62.0  26 b:3.8+0 .84 4.2                   MLY 
 KNK  eP      07:38:34.10   0.2X  62.1  30 b:5.6+0 .68 4.5                   KNK 
 GLI  eP      07:38:37.51   0.0   62.7  31 b:3.4+0 .72 4.2                   GLI 
 SCM  eP      07:38:38.48   0.5X  62.7  30 b:7.6+0 .80 4.5                   SCM 
 WRH  eP      07:38:38.60  -0.6   62.9  27 b:2.3+0 .64 4.1                   WRH 
 MDM  eP      07:38:40.40   0.9X  63.0  26 b:3.6+0 .68 4.3                   MDM 
 HDA  eP      07:38:41.38  -0.9X  63.4  27 b:3.0+0 .84 4.1                   HDA 
 ILAR eP      07:38:41.58  -1.3   63.5  26                                   ILAR
 ILB  eP      07:38:41.90  -1.0X  63.5  26 b:2.9+0 .90 4.1                   ILB 
 TOLK eP      07:38:43.10   0.8X  63.4  22 b:4.7+0 .55 4.5                   TOLK
 DOT  eP      07:38:49.68   0.1X  64.5  28                                   DOT 
 SCRK eP      07:38:50.56   0.3X  64.6  27 b:3.9+0 1.0 4.2                   SCRK
 BCAR eP      07:38:55.58  -0.1   65.5  29                                   BCAR
 HYT  eP      07:39:08.13   0.4   67.3  31 b:3.4+0 .78 4.1                   HYT 
 INK  eP      07:39:18.73  -0.2   69.2  23 b:2.9+0 .80 4.1                   INK 
 YKA  eP      07:40:08.49  -1.0   77.9  28                                   YKA 
 KHMM eP      07:40:13.84   0.0   78.5  51 b:2.8+0 .78 4.1                   KHMM
 RES  eP      07:40:16.44   0.1   79.2  14 b:1.5+0 .75 3.8                   RES 
 YBH  eP      07:40:16.65   0.1   79.0  50 b:2.9+0 .95 4.0                   YBH 
 AFDM eP      07:40:27.14  -0.4   81.1  52 b:3.0+0 .88 4.0                   AFDM
 BEKR eP      07:40:28.52  -0.1   81.3  51 b:5.4+0 .72 4.4                   BEKR
 WAKR eP      07:40:34.48   0.0   82.4  52 b:3.6+0 .70 4.2                   WAKR
 NVAR eP      07:40:38.39  -0.5   83.3  52                                   NVAR
 LRM  eP      07:40:46.30   1.5   84.4  42                                   LRM 
 FFC  eP      07:40:56.58  -0.3   87.0  32 b:3.6+0 .80 4.3                   FFC 



 Generated 2013 MAY  8 at 07:51 UTC

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