Phase Data

Explanation of Parameters


      2 APR 2013  ( 92)

     ot  = 11:01:21.11   +/-   1.28              SOUTHWEST INDIAN RIDGE          
     lat =     -40.376   +/-   12.1
     lon =      45.340   +/-   13.2              MAGNITUDE 5.2 (GS)       
     dep =        10.0  (geophysicist)

     750 km (466 miles) NNW of Ile aux Cochons, Crozet Islands
     950 km (590 miles) NE of Marion Island, Prince Edward Islands
     1747 km (1085 miles) SE of Durban, South Africa

     nph =   48 of  76    se = 0.63    FE=428                            A   

     error ellipse = ( 71.0,  0.0, 17.4;341.0,  0.0, 15.7;164.0, 89.0,  2.8)

 mb = 5.2 ( 69)  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
 CRZF ePn     11:03:06.44  -6.6    7.7 144                                   CRZF
 BOSA eP      11:05:57.54   1.0   20.2 299 b:1.4+2 1.1 5.2                   BOSA
 RER  eP      11:06:05.81   0.0   21.1  28 b:1.1+2 1.1 5.1                   RER 
 SUR  eP      11:06:08.13   0.5   21.3 284 b:1.2+2 1.1 5.2                   SUR 
 ABPO eP      11:06:09.86   1.2   21.3   5 b:5.4+1 1.0 4.9                   ABPO
 LBTB eP      11:06:20.97  -0.2   22.5 307 b:1.4+2 1.1 5.3                   LBTB
 LSZ  eP      11:07:22.55   0.1   29.1 324 b:5.2+1 1.1 5.2                   LSZ 
 TSUM eP      11:07:45.24  -0.8   31.8 303 b:2.9+1 .95 5.2                   TSUM
 SNAA eP      11:08:50.52   0.3   39.3 202 b:2.3+1 1.1 4.8                   SNAA
      ePcP    11:10:58.06  -0.3 
 KMBO eP      11:08:54.82   0.5   39.8 347 b:6.8+0 1.0 4.3                   KMBO
 NAI  eP      11:08:55.37   1.6   39.7 347 b:2.8+1 .80 5.0                   NAI 
 MBAR eP      11:09:11.32   0.5   41.8 338 b:2.0+1 .90 4.8                   MBAR
 CASY eP      11:09:28.87   0.9   44.0 148 b:4.1+0 .85 4.3                   CASY
 FURI eP      11:10:11.52   0.0   49.4 351 b:3.8+1 .45 5.7                   FURI
 QSPA eP      11:10:13.93  -0.1   49.8 180 b:4.4+1 1.0 5.4                   QSPA
 ATD  eP      11:10:29.01   0.6   51.7 357 b:1.2+1 .80 4.9                   ATD 
 DAMY eP      11:10:50.82   0.2   54.7 359 b:2.2+1 1.1 5.1                   DAMY
 VNDA eP      11:11:00.80  -0.2   56.3 167 b:2.9+0 1.1 4.2                   VNDA
 SBA  eP      11:11:07.13   1.6   56.9 168 b:6.8+0 1.0 4.6                   SBA 
 PALK eP      11:11:11.22   0.4   57.5  43 b:2.2+1 1.0 5.1                   PALK
 MORW eP      11:11:13.04   0.4   57.8 103 b:2.3+1 1.0 5.2                   MORW
 PSI  eP      11:12:01.00  -0.5   65.0  63 b:1.2+1 .90 5.1                   PSI 
 DBIC eP      11:12:05.86  -0.2   65.7 303 b:1.4+1 .85 5.2                   DBIC
 FORT eP      11:12:05.92   0.2   65.7 111 b:3.0+1 .75 5.6                   FORT
 TOA0 eP      11:12:11.70  -1.8   66.9 313                                   TOA0
      epP     11:12:12.11  depth =  -3.9 
      eP      11:12:13.57   0.1 
 BBOO eP      11:12:32.84  -1.0   70.1 117 b:2.6+1 .95 5.3                   BBOO
 FITZ eP      11:12:40.79   0.1   71.2  98 b:2.4+1 1.1 5.2                   FITZ
 AS01 eP      11:12:56.59  -1.0X  74.1 108                                   AS01
 AS31 eP      11:12:56.92  -0.4X  74.0 108 b:3.9+0 .95 4.4                   AS31
 STKA eP      11:12:59.52   0.0X  74.4 119 b:4.4+0 .80 4.5                   STKA
 MMRI eP      11:12:59.86  -0.2X  74.5  88 b:4.8+1 .80 5.6                   MMRI
 CSS  eP      11:13:06.65  -0.3X  75.8 350 b:3.4+1 1.0 5.4                   CSS 
 SOEI eP      11:13:09.21   4.1X  75.3  91 b:3.0+1 .80 5.4                   SOEI
 WRAB eP      11:13:12.31  -0.1   76.6 105 b:2.5+1 1.1 5.2                   WRAB
 CM01 eP      11:13:12.64  -0.7X  76.9  52                                   CM01
 CHTO eP      11:13:14.58  -0.4   77.1  52 b:1.1+1 .95 4.9                   CHTO
 SIRT eP      11:13:17.95   1.0X  77.6 358 b:1.8+2 .84 6.2                   SIRT
 KBL  eP      11:13:18.52   0.6   77.7  20 b:1.4+1 .75 5.1                   KBL 
 SHL  eP      11:13:22.92   0.1   78.6  42 b:2.8+1 .74 5.4                   SHL 
 BR131eP      11:13:32.02  -0.8X  80.4 351 b:2.5+1 .85 5.2                   BR13
 ANTO eP      11:13:34.22   0.2   80.7 350 b:4.0+1 1.1 5.3                   ANTO
 GO06 eP      11:13:39.82  -0.4   81.8 224 b:2.2+1 1.0 5.2                   GO06
 AGG  eP      11:13:40.14   0.4X  81.8 342 b:2.3+1 .94 5.2                   AGG 
 GAR  eP      11:13:42.50   0.2X  82.2  19 b:3.1+1 .78 5.5                   GAR 
 CPUP eP      11:13:43.17   0.2   82.3 242 b:6.0+0 1.0 4.7                   CPUP
 BDFB eP      11:13:45.88   1.2   82.5 256 b:3.3+1 1.1 5.4                   BDFB
 KEST eP      11:13:46.45   1.8X  82.7 331 b:4.1+1 .95 5.6                   KEST
 BTK  eP      11:13:48.65   0.5X  83.4  20 b:2.3+0 .50 4.7                   BTK 
 FNA  eP      11:13:49.87   0.2X  83.7 342 b:2.3+1 1.1 5.3                   FNA 
      ePcP    11:13:53.50  -0.3 
 VTS  eP      11:13:55.99  -0.5X  85.0 344 b:1.1+1 1.0 5.0                   VTS 
 ARSB eP      11:13:56.87  -0.1X  85.1  21 b:3.1+1 1.1 5.4                   ARSB
 LTZ  eP      11:13:57.29   3.9   84.3 144 b:4.0+1 1.0 5.6                   LTZ 
 CTAO eP      11:13:57.78  -0.1   85.2 112 b:1.0+1 .90 5.1                   CTAO
 TIRR eP      11:14:00.17  -0.1X  85.8 348 b:1.6+1 .90 5.2                   TIRR
 PEL  eP      11:14:01.24  -0.6   86.0 229 b:2.4+1 1.1 5.3                   PEL 
 KKAR eP      11:14:02.12   0.1X  86.2  18 b:2.8+1 1.1 5.3                   KKAR
 KK31 eP      11:14:02.12   0.1X  86.2  18 b:2.8+1 1.1 5.3                   KK31
 AAK  eP      11:14:05.08  -0.1   86.7  21 b:6.5+0 .95 4.8                   AAK 
 MLR  eP      11:14:06.68  -0.7X  87.2 346 b:2.9+1 .90 5.5                   MLR 
 PRZ  eP      11:14:10.32   0.4X  87.7  24 b:2.3+1 .80 5.5                   PRZ 
 ABKAReP      11:14:19.97  -1.1X  90.2  10 b:2.6+0 .90 4.5                   ABKA
 PSZ  eP      11:14:23.99   0.0X  90.8 343 b:2.6+1 1.1 5.5                   PSZ 
 ES06 eP      11:14:27.42   0.0X  91.5 324                                   ES06
 KIEV eP      11:14:27.43  -1.1   91.8 350 b:1.6+1 .80 5.4                   KIEV
 AK11 eP      11:14:27.67  -0.8X  91.8 350                                   AK11
 AKBB eP      11:14:27.80  -0.7   91.8 350 b:1.7+1 .80 5.5                   AKBB
 KWP  eP      11:14:28.63  -0.1X  91.8 346 b:1.6+2 1.0 6.3                   KWP 
 MK01 eP      11:14:31.10  -2.3X  92.8  25                                   MK01
 MAKZ eP      11:14:32.67  -0.4   92.7  24 b:1.5+1 1.0 5.3                   MAKZ
 MK31 eP      11:14:32.82  -0.7X  92.8  25 b:1.1+1 1.1 5.2                   MK31
 KURK eP      11:14:43.86  -0.7   95.3  21 b:4.6+0 1.1 4.8                   KURK
 PB11 eP      11:14:44.19  -0.3   95.0 239 b:2.6+1 1.0 5.6                   PB11



 Generated 2013 APR  2 at 11:20 UTC

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