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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     11 MAY 2008  (132)

     ot  = 21:01:07.43   +/-   0.22              NORTHERN MID-ATLANTIC RIDGE     
     lat =      47.359   +/-    7.7
     lon =     -27.229   +/-    3.4              MAGNITUDE 5.1 (GS)       
     dep =        10.0  (geophysicist)

     930 km (580 miles) NNE of Santa Cruz das Flores, Azores, Portugal
     975 km (600 miles) N of Angra do Heroismo, Azores, Portugal
     1110 km (690 miles) N of Ponta Delgada, Azores, Portugal
     1755 km (1090 miles) NW of LISBON, Portugal

     nph =   81 of 100    se = 1.08    FE=403                            A   

     error ellipse = (195.7,  0.0, 10.4;105.7,  0.0,  3.5;  0.0,  0.0,  0.0)

 mb = 4.6 ( 32)  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
 EMAZ P       21:04:18.05  -2.4   13.6 102 b:2.2+1 .42 5.4X                  EMAZ
      S       21:06:17.83  S res = -33.8X
 STS  P       21:04:23.52  -1.1   13.9 102 b:6.8+0 .44 4.8X                  STS 
      S       21:06:24.38  S res = -34.8X
 EZAM P       21:04:24.58  -3.3X  14.2 105 b:1.6+1 .36 5.2X                  EZAM
      S       21:06:29.88  S res = -35.0X
 ELOB P       21:04:32.30  -3.1X  14.7 105 b:4.4+0 .34 4.4X                  ELOB
      S       21:06:46.05  S res = -32.3X
 EPON P       21:04:33.40  -1.6   14.7  99 b:2.9+0 .36 4.2X                  EPON
      S       21:06:39.32  S res = -38.3X
 ERUA P       21:04:38.08  -2.2   15.1 102 b:1.1+1 .56 4.5                   ERUA
 ECAL P       21:04:45.18  -1.4   15.5 103 b:2.8+0 .24 4.1                   ECAL
 EARI P       21:04:50.73  -1.7   16.0  97 b:8.0-1 .20 3.5X                  EARI
 MTE  ePn     21:04:52.94   3.2X  15.8 109 b:2.0+1 1.0 4.3                   MTE 
 EBAD P       21:05:04.53  -1.4   17.1 113 b:1.0+0 .20 3.6                   EBAD
 EKA  Pn      21:05:05.20   0.7   17.0  53                                   EKA 
 ESK  ePn     21:05:05.42   1.3   16.9  53 b:8.5+1 1.0 4.8                   ESK 
 ELAN P       21:05:07.93  -0.1   17.2  95 b:5.3+0 .40 4.0                   ELAN
 EGRO P       21:05:11.41  -0.4   17.5 117 b:1.6+1 .82 4.2                   EGRO
 BORG qPn     21:05:14.95   0.9   17.7   8                                   BORG
 EMIN P       21:05:16.30   0.2   17.9 115 b:4.0-1 .20 3.2X                  EMIN
 GUD  P       21:05:17.12   1.0   17.9 104 b:3.7+0 .28 4.0                   GUD 
 EALK P       21:05:23.76  -0.3   18.5  93 b:1.8+0 .40 3.6                   EALK
 ESLA eP      21:05:23.81   0.2   18.5 106                                   ESLA
 ESDC P       21:05:25.34   1.7   18.5 106 b:1.4+0 .35 3.6X                  ESDC
 EADA P       21:05:29.66   1.1   18.9 111                                   EADA
 ESPR P       21:05:29.88   1.3   18.9 116 b:1.3+1 1.1 4.1                   ESPR
 ETOR P       21:05:33.91   2.7   19.2 101 b:8.9+0 .66 4.1                   ETOR
 EBIE P       21:05:41.63   2.9   19.9  94 b:6.9+0 .74 4.1                   EBIE
 EVIA P       21:05:42.48   2.2   20.0 107                                   EVIA
 ECOG P       21:05:43.66   2.2   20.1 111                                   ECOG
 EQES P       21:05:44.87   3.4X  20.1 110 b:1.3+1 1.0 4.2                   EQES
 ETOB P       21:05:53.62   6.6X  20.6 106 b:7.4+0 .76 4.1                   ETOB
 ERTA P       21:05:53.85   6.0X  20.7  98 b:6.0+1 .84 5.0                   ERTA
 MDT  P       21:06:07.54   0.6   22.5 122                                   MDT 
 SCHQ P       21:06:36.30  -1.1   25.7 302                                   SCHQ
      LR      21:14:30.03                                  
 SUMG eP      21:06:43.28   4.4X  25.8 352 b:2.3+2 .80 5.9X                  SUMG
 AKASGP       21:08:11.69   0.0   36.4  63                                   AKAS
 FCC  eP      21:08:42.50  -0.1   40.1 312 b:4.4+0 1.4 3.9                   FCC 
 TORD P       21:08:57.05  -0.5   41.8 135                                   TORD
      LR      21:25:03.83                                  
 EYMN eP      21:08:59.72  -0.1   42.2 296 b:5.5+1 1.3 5.1                   EYMN
 BR131eP      21:09:11.34  -1.9   43.8  77                                   BR13
 BRTR P       21:09:11.35  -1.9   43.8  77                                   BRTR
      PcP     21:10:59.55  -0.2X
      LR      21:27:18.34                                  
 ULM  eP      21:09:12.76  -0.7   43.8 300 b:5.6+1 1.5 5.2                   ULM 
 AGMN eP      21:09:20.14   0.1   44.7 298 b:3.8+1 1.3 5.1                   AGMN
 WVT  qP      21:09:25.56  -1.4   45.5 279                                   WVT 
 FFC  eP      21:09:26.28  -0.2   45.5 308 b:1.2+2 1.4 5.7X                  FFC 
 SDDR eP      21:09:29.02   1.0   45.6 247 b:2.8+1 1.2 5.1                   SDDR
 ECSD eP      21:09:40.88   0.3   47.3 293 b:6.8+1 1.9 5.4                   ECSD
 MIAR eP      21:10:03.37  -0.5   50.3 281 b:2.2+1 1.2 5.0                   MIAR
 RSSD eP      21:10:14.59   0.2   51.6 297                                   RSSD
 SDV  eP      21:10:25.88   0.6   53.1 238                                   SDV 
 WMOK eP      21:10:26.71  -2.1   53.6 284 b:6.7+0 1.2 4.5                   WMOK
 PHWY eP      21:10:32.22  -0.2   54.1 294 b:2.5+1 .85 5.3                   PHWY
 WALA qP      21:10:35.71  -0.8   54.7 306                                   WALA
 ISCO eP      21:10:39.79   0.3   55.0 293                                   ISCO
 BOZ  eP      21:10:40.72  -0.4   55.3 302                                   BOZ 
 AMTX eP      21:10:42.26   0.1   55.4 286 b:2.2+1 1.2 5.1                   AMTX
 RLMT eP      21:10:42.48   9.4X  54.2 300 b:1.9+2 1.1 6.0X                  RLMT
 BW06 eP      21:10:43.36  -1.0   55.7 298                                   BW06
 LOHW eP      21:10:45.34   0.0   55.9 299 b:9.2+0 1.1 4.7                   LOHW
 IMW  eP      21:10:46.21   0.6   55.9 300 b:1.2+1 1.2 4.8                   IMW 
 REDW eP      21:10:47.18  -0.2   56.2 299 b:1.7+1 1.0 5.0                   REDW
 SDCO eP      21:10:47.43  -0.2   56.2 291                                   SDCO
 TPAW eP      21:10:47.48   0.1   56.2 299 b:9.1+0 1.2 4.7                   TPAW
 RRI2 eP      21:10:49.34  -0.2   56.5 299                                   RRI2
 HLID eP      21:11:02.02   0.7   58.1 301                                   HLID
 SPUT eP      21:11:02.40  -0.3   58.3 298 b:1.4+1 1.1 4.9                   SPUT
 SRU  eP      21:11:03.69  -0.2   58.5 295                                   SRU 
 MVCO eP      21:11:04.15   0.8   58.4 292                                   MVCO
 ANMO Pdif    21:11:04.65   0.7   58.5 289                                   ANMO
      PP      21:15:40.08  147.X
 MPU  eP      21:11:05.26   0.4   58.6 296                                   MPU 
 GDL2 eP      21:11:06.58   0.2   58.9 285                                   GDL2
 TMUT eP      21:11:06.63   0.4   58.8 296                                   TMUT
 NLU  eP      21:11:07.32   0.4   58.9 297                                   NLU 
 M13A eP      21:11:09.01  -0.6   59.3 299 b:5.1+0 1.0 4.6                   M13A
 DUG  eP      21:11:09.19   0.3   59.2 297                                   DUG 
 MSU  eP      21:11:14.00   0.5   59.9 295                                   MSU 
 TXAR P       21:11:15.18  -0.6   60.2 282                                   TXAR
 ELK  P       21:11:16.95   0.2   60.3 299                                   ELK 
 CCUT eP      21:11:23.32   0.7   61.2 295                                   CCUT
 WUAZ eP      21:11:23.61   0.7   61.3 292                                   WUAZ
 SHPR eP      21:11:34.75   0.2   63.0 295                                   SHPR
 TUC  eP      21:11:34.79   0.6   63.0 289                                   TUC 
 NVAR P       21:11:38.58  -0.3   63.6 299                                   NVAR
 OTAV eP      21:11:45.14  -0.5   64.6 240 b:1.3+1 1.3 5.0                   OTAV
 GSC  eP      21:11:47.02   0.8   64.8 295                                   GSC 
 ISA  eP      21:11:52.32   1.0   65.6 297                                   ISA 
 PFO  eP      21:11:52.71   0.5   65.7 294                                   PFO 
 MK31 eP      21:12:06.58   0.9   67.9  44                                   MK31
 SONM P       21:13:00.52   0.5   76.9  30                                   SONM
 MAJO eP      21:14:31.34  -1.0   95.5  12                                   MAJO
 WRA  PKPbc   21:20:53.33  -1.9  148.8  35                                   WRA 
 ASAR PKPbc   21:21:01.50  -1.2  152.0  39                                   ASAR
      PKPab   21:21:09.35  -2.6X



 Generated 2008 MAY 27 at 03:35 UTC

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


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