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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     22 APR 2009  (112)

     ot  = 01:48:26.21   +/-   0.13              VANUATU                         
     lat =     -13.623   +/-    4.1
     lon =     167.198   +/-    3.2              MAGNITUDE 5.1 (GS)       
     dep =       195.7  (depth phases)

     210 km (130 miles) N of Luganville, Espiritu Santo, Vanuatu
     355 km (220 miles) SSE of Lata, Santa Cruz Islands, Solomon Isl.
     470 km (295 miles) NNW of PORT-VILA, Efate, Vanuatu
     2130 km (1320 miles) NE of BRISBANE, Queensland, Australia

     nph =  138 of 220    se = 0.79    FE=186                            A   

     error ellipse = (154.6,  0.0,  5.7; 64.6,  0.0,  3.8;  0.0,  0.0,  0.0)

 mb = 5.1 ( 83)  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
 HNR  ePn     01:50:24.53   1.9    8.2 300 d:1.8+2     6.8X L:9.3-1 1.0 5.4X HNR 
      eS      01:52:02.50  S res =   7.3X  g:8.2-1 1.0 4.7X b:7.3+2 1.0 5.9 
 MSVF ePn     01:51:04.89   3.5X  11.2 113                                   MSVF
 FUNA ePn     01:51:23.35   1.7   12.8  68                                   FUNA
 EIDS eP      01:52:36.53   1.8   19.1 230 b:3.9+2 .50 6.2X                  EIDS
 PMG  eP      01:52:44.78  -0.1   20.1 280 b:1.6+2 .90 5.5                   PMG 
 AFI  eP      01:52:50.81   2.1   20.4  93 b:2.3+2 .90 5.7                   AFI 
 CTAO eP      01:52:55.49   0.4   21.0 249 b:9.1+1 .60 5.5                   CTAO
 ARMA eP      01:53:06.28   0.9   22.0 218                                   ARMA
 COEN eP      01:53:18.86   1.7   23.3 266 b:6.0+2 1.2 6.1                   COEN
 CAN  eP      01:53:51.96   0.7   27.1 214 g:4.8-2 1.0 4.4X b:4.8+1 1.0 5.2  CAN 
 STKA eP      01:54:14.38   0.7   29.7 228 b:1.5+1 .60 4.9                   STKA
      ePcP    01:57:12.78  -0.3X
 RPZ  eP      01:54:17.55  -0.5   30.2 174 b:3.1+1 .62 5.2                   RPZ 
 WRAB eP      01:54:33.84  -0.8   32.0 254 b:6.6+1 1.3 5.1                   WRAB
 RAR  eP      01:54:38.27   0.9   32.4 108 b:4.8+1 1.2 5.0                   RAR 
 AS31 eP      01:54:42.46  -0.7   33.0 247                                   AS31
      ePcP    01:57:21.76  -0.6X
 TAU  eP      01:54:50.49   0.4   33.8 207 b:8.4+1 1.2 5.2                   TAU 
 BBOO eP      01:54:53.64   0.3   34.2 231 b:1.3+3 .85 6.6X                  BBOO
      ePcP    01:57:24.70  -0.9X
 GUMO eP      01:54:59.63   0.0   34.9 320 b:8.5+1 .59 5.6                   GUMO
 FORT eP      01:55:40.06  -0.5   39.8 238 b:9.7+1 .65 5.5                   FORT
 MBWA eP      01:56:28.75   0.1   45.8 254 b:8.9+1 1.0 5.2                   MBWA
      ePcP    01:58:02.42  -0.5X
 KAPI eP      01:56:42.09  -0.1   47.5 276 b:9.5+1 .95 5.2                   KAPI
      ePcP    01:58:08.71  -0.5X
 KKM  eP      01:57:32.80   0.3   54.3 288 b:5.1+2 1.4 6.0                   KKM 
 MAJO eP      01:57:50.96   0.1   56.9 332 b:1.5+2 1.0 5.7                   MAJO
 TWG  eP      01:57:57.32  -0.8   57.9 308 b:8.8+1 .50 5.8                   TWG 
 YULB eP      01:57:58.77  -0.4   58.0 309 b:3.2+1 .60 5.2                   YULB
 NACB eP      01:58:00.51  -0.1   58.3 310 b:1.6+2 1.1 5.7                   NACB
      ePcP    01:58:49.88   0.2X
 KSM  eP      01:58:01.15  -0.2   58.3 280 b:1.4+2 1.5 5.5                   KSM 
 TPUB eP      01:58:01.94  -0.3   58.5 308 b:3.0+2 1.3 5.9                   TPUB
 SSLB eP      01:58:01.96  -0.5   58.5 309 b:1.2+2 .80 5.7                   SSLB
 YHNB eP      01:58:04.09   0.3   58.7 310 b:4.4+2 1.1 6.1                   YHNB
 TATO eP      01:58:04.72   0.4   58.8 311 b:1.0+2 1.0 5.5                   TATO
 VNDA eP      01:58:38.02   0.0   64.0 181 b:1.8+1 .83 4.9                   VNDA
 SBA  eP      01:58:40.66   0.9   64.2 180 b:6.3+1 1.0 5.4                   SBA 
      epP     01:59:27.00  depth = 198.4 
 CASY eP      01:58:41.19  -0.6   64.5 202 b:3.6+1 .78 5.3                   CASY
      epP     01:59:27.89  depth = 199.9 
 FX1  eP      01:58:54.93   0.8   66.4   4                                   FX1 
 PEA0BeP      01:58:58.85   1.3   67.0 354                                   PEA0
 IPM  eP      01:59:05.71   0.2   68.1 281 b:1.3+2 .95 5.6                   IPM 
 KULM eP      01:59:09.08   0.1   68.7 281 b:1.2+2 1.4 5.4                   KULM
      ePcP    01:59:29.84  -2.7X
 CM31 eP      01:59:44.94   1.5   74.4 294                                   CM31
 CHTO eP      01:59:45.41   1.3   74.6 294 b:1.2+2 1.1 5.5                   CHTO
 OHAK eP      02:00:01.40   0.0   77.8  21 b:3.5+1 1.0 5.0                   OHAK
      epP     02:00:48.30  depth = 193.5 
 SEW  eP      02:00:20.03  -0.1   81.3  20 b:3.6+1 1.1 5.0                   SEW 
 TNA  eP      02:00:20.61   1.3   81.1  10 b:1.2+2 1.8 5.3                   TNA 
 ULN  eP      02:00:21.17   0.8   81.2 324 b:9.8+1 .95 5.5                   ULN 
 PMR  eP      02:00:26.17  -0.3   82.5  19 b:2.4+2 2.0 5.6                   PMR 
      epP     02:01:13.47  depth = 193.0 
 PPLA eP      02:00:26.30  -0.6   82.5  18 b:2.2+1 1.4 4.7                   PPLA
 SML  eP      02:00:29.01   0.3   82.9  20 b:3.1+1 1.5 4.8                   SML 
 TRF  eP      02:00:30.48  -1.4   83.5  18 b:4.3+1 1.1 5.1                   TRF 
      epP     02:01:17.92  depth = 193.1 
 KCPM eP      02:00:32.00   0.9   83.3  47 b:1.5+1 1.0 4.7                   KCPM
      epP     02:01:19.82  depth = 195.0 
 KIPM eP      02:00:32.06   0.3   83.4  47 b:4.3+1 1.5 5.2                   KIPM
      epP     02:01:20.49  depth = 197.7 
 BMRM eP      02:00:32.37   0.2   83.6  21 b:2.2+1 1.1 4.8                   BMRM
      epP     02:01:19.48  depth = 191.6 
 KHMM eP      02:00:33.54   0.5   83.6  45 b:8.6+0 .68 4.6                   KHMM
      epP     02:01:21.70  depth = 196.3 
 MCK  eP      02:00:34.31  -0.5   84.1  18 b:1.5+2 1.5 5.5                   MCK 
      epP     02:01:21.86  depth = 193.4 
 WDC  eP      02:00:36.74   0.3   84.3  46 b:2.0+1 1.3 4.7                   WDC 
      epP     02:01:25.06  depth = 196.7 
 YBH  eP      02:00:38.56   0.3   84.7  45 b:1.7+1 1.4 4.9                   YBH 
      epP     02:01:27.22  depth = 198.1 
 CMB  eP      02:00:39.18  -0.3   84.9  49 b:1.3+1 .93 4.6                   CMB 
      epP     02:01:27.88  depth = 198.2 
 HUMO eP      02:00:39.35   0.4   84.9  44 b:1.6+1 .90 4.7                   HUMO
      epP     02:01:27.80  depth = 197.1 
 COLA eP      02:00:40.37  -0.2   85.3  18 b:2.2+1 .85 4.9                   COLA
      epP     02:01:27.18  depth = 189.6 
 MENT eP      02:00:40.47   0.1   85.2  20                                   MENT
 DOT  eP      02:00:41.95  -0.3   85.6  20 b:3.8+0 .72 4.3                   DOT 
 MWC  eP      02:00:41.99   0.1   85.4  53 b:1.8+1 1.0 4.8                   MWC 
      ePP     02:03:57.80  -5.2X
 ISA  eP      02:00:42.26  -0.3   85.5  52 b:2.2+1 1.3 4.8                   ISA 
      epP     02:01:31.14  depth = 198.7 
 BEKR eP      02:00:43.34   0.3   85.6  47 b:5.2+0 .98 4.3                   BEKR
      epP     02:01:30.94  depth = 193.0 
 BAR  eP      02:00:44.65   0.0   85.9  55 b:5.3+0 .73 4.5                   BAR 
 COLD eP      02:00:46.78   0.8   86.4  15 b:2.4+2 2.3 5.6                   COLD
      epP     02:01:34.51  depth = 193.2 
 PFO  eP      02:00:47.25   0.2   86.4  54 b:3.9+0 .60 4.4                   PFO 
 GSC  eP      02:00:48.00  -0.3   86.7  53 b:3.5+0 .28 4.7                   GSC 
 NV11 eP      02:00:48.26  -0.1   86.7  49                                   NV11
      epP     02:01:36.96  depth = 197.4 
 LON  eP      02:00:49.84  -0.9   87.3  41 b:3.1+0 .78 4.2                   LON 
 GLA  eP      02:00:53.17   0.9   87.5  55 b:2.5+1 .88 5.1                   GLA 
 WVOR eP      02:00:53.21  -0.1   87.8  45 b:3.4+1 1.6 4.9                   WVOR
      epP     02:01:41.08  depth = 193.1 
 LDFC eP      02:00:54.43   0.2   87.9  53 b:1.0+2 1.4 5.5                   LDFC
 BMO  eP      02:01:01.00  -0.3   89.5  44 b:9.4+0 .95 4.7                   BMO 
      epP     02:01:49.54  depth = 195.5 
 ELK  eP      02:01:01.95  -0.2   89.6  48                                   ELK 
      epP     02:01:50.79  depth = 196.8 
 MFID eP      02:01:03.73  -0.2   90.0  45 b:1.4+1 .88 4.9                   MFID
      epP     02:01:52.69  depth = 197.2 
 ARUT eP      02:01:04.46   0.4   90.0  51 b:1.1+1 1.0 4.7                   ARUT
 CCUT eP      02:01:04.82   0.7   90.0  51 b:9.1+0 .98 4.7                   CCUT
 NEW  eP      02:01:06.24  -0.9   90.8  40 b:4.4+0 .70 4.6                   NEW 
 HLID eP      02:01:08.46  -0.3   91.1  45 b:9.1+0 1.1 4.7                   HLID
      epP     02:01:57.43  depth = 197.1 
 WUAZ eP      02:01:09.02   0.5   91.0  54 b:1.3+1 1.0 4.9                   WUAZ
 DUG  eP      02:01:09.60   0.2   91.2  49 b:5.2+0 .60 4.7                   DUG 
 MSU  eP      02:01:10.16   0.6   91.2  51 b:1.1+1 1.0 4.9                   MSU 
 HVU  eP      02:01:11.17  -0.5   91.7  47 b:2.4+0 1.4 5.1                   HVU 
      epP     02:02:01.17  depth = 201.5 
 BSMT eP      02:01:13.41  -0.1   92.1  41 b:3.2+0 .86 4.4                   BSMT
 JLU  eP      02:01:15.34   0.6   92.3  49 b:6.9+0 1.1 4.6                   JLU 
 MCMT eP      02:01:16.15   0.7   92.5  45 b:9.5-1 .60 4.1X                  MCMT
 DLMT eP      02:01:17.10   0.3   92.8  44 b:5.0+0 .70 4.7                   DLMT
      epP     02:02:10.84  depth = 218.2X
 PV04 eP      02:01:20.86   0.1   93.6  52                                   PV04
 PV01 eP      02:01:21.60  -0.1   93.8  52 b:5.0+2 1.0 6.6X                  PV01
 SNAA eP      02:01:23.03  -1.6   94.6 183 b:3.1+1 1.0 5.4                   SNAA
 ANMO eP      02:01:25.65  -0.2   94.7  55 b:5.5+0 1.1 4.7                   ANMO
      ePP     02:05:14.26  -3.0X
 SMCO eP      02:01:28.46  -0.1   95.3  51 b:5.2+0 1.1 4.7                   SMCO
      epP     02:02:16.39  depth = 192.2 
 ZAA0 eP      02:01:31.96  -1.0   96.5 324                                   ZAA0
 YKW3 eP      02:01:32.22  -1.3   96.6  27                                   YKW3
 MK31 eP      02:01:32.66  -0.1   96.4 316                                   MK31
 AMTX eP      02:01:42.44  -0.6   98.6  56 b:2.8+0 .58 4.9                   AMTX
 KURK eP      02:01:45.67  -1.1   99.5 320 b:1.2+1 1.2 5.2                   KURK
 TKM2 eP      02:01:50.27  -0.5X 100.3 312 b:2.9+0 .68 4.9                   TKM2
 AAK  ePdif   02:01:53.81  -0.3X 101.1 311 b:9.1+0 .80 5.4                   AAK 
 EKS2 ePdif   02:01:56.16  -0.2X 101.6 311                                   EKS2
 KKAR ePdif   02:02:06.24  -0.8X 104.0 311 b:1.1+0 .63 5.0                   KKAR
 BRVK ePdif   02:02:09.25  -1.4X 104.9 322 b:4.5+0 1.0 5.4                   BRVK
 RES  ePKP    02:06:23.72  -0.8  105.1  16                                   RES 
 ABKARePKP    02:06:36.48  -0.6  111.5 318                                   ABKA
 LPAZ ePKPdf  02:06:50.26  -0.7  117.8 117                                   LPAZ
 SUMG ePKPdf  02:06:51.48  -0.2  119.2   9                                   SUMG
 GNI  ePKPdf  02:07:01.15   0.7  123.4 309                                   GNI 
 FIA1 ePKPdf  02:07:01.74  -0.3  124.7 338                                   FIA1
 BOSA ePKPdf  02:07:02.10  -0.2  124.2 221                                   BOSA
 SUR  ePKPdf  02:07:02.15   0.0  124.1 214                                   SUR 
 SAML ePKPdf  02:07:03.38  -1.1  125.2 111                                   SAML
 LBTB ePKPdf  02:07:06.23  -0.4  126.4 224                                   LBTB
 SJG  ePKPdf  02:07:09.75  -1.2  128.6  78                                   SJG 
 MALT ePKPdf  02:07:10.43   0.0  128.6 308                                   MALT
      ePP     02:09:13.46  -5.0X
 KMBO ePKPdf  02:07:11.17   0.4  128.3 258                                   KMBO
      epPKPdf 02:08:01.04  -0.5X
 KIEV ePKPdf  02:07:11.49  -0.7  129.8 326                                   KIEV
 NAO01ePKPdf  02:07:11.72  -0.2  129.8 345                                   NAO0
 AK02 ePKPdf  02:07:12.06  -0.1  129.8 326                                   AK02
 AK01 ePKPdf  02:07:12.18   0.0  129.8 326                                   AK01
 CBYP ePKPdf  02:07:12.66   1.2  128.9  77                                   CBYP
 SUW  ePKPdf  02:07:14.35   0.4  130.8 333                                   SUW 
      eSKP    02:10:22.57   2.6X
 LSZ  ePKPdf  02:07:14.40   0.0  130.3 236                                   LSZ 
      eSKP    02:10:20.24   0.9X
 BR131ePKPdf  02:07:16.10  -0.3  131.7 312                                   BR13
      eSKP    02:10:26.05   1.3X
 MORC ePKPpre 02:07:17.32  -7.1X 136.2 332                                   MORC
      ePKPdf  02:07:24.09  -0.3X
      ePP     02:10:01.18  -5.2X
 ANTO ePKPdf  02:07:17.44   0.1  132.3 312                                   ANTO
 CSS  ePKPdf  02:07:19.61   0.1  133.4 305                                   CSS 
 BUR08ePKPdf  02:07:20.49   0.7  133.7 325                                   BUR0
 KWP  ePKPdf  02:07:20.55   0.7  133.8 328                                   KWP 
 KHC  ePKPpre 02:07:20.57  -7.9X 138.5 334                                   KHC 
      ePKPdf  02:07:28.37  -0.2X
      ePP     02:10:16.35  -3.9X
      eSKP    02:10:47.68   2.8X
 IDI  ePKPpre 02:07:23.47  -8.0X 139.8 309                                   IDI 
      ePKPdf  02:07:33.41   2.0X
 TSUM ePKPdf  02:07:24.05  -0.4  135.7 223                                   TSUM
 TIR  ePKPpre 02:07:24.60  -7.6X 140.4 320                                   TIR 
      ePKPdf  02:07:32.26   0.1X
 WLF  ePKPpre 02:07:25.00  -7.7X 140.8 340                                   WLF 
      ePKPdf  02:07:31.90  -0.8X
      eSKP    02:10:52.38   1.4X
 PSZ  ePKPdf  02:07:25.27   0.6  136.3 328                                   PSZ 
 STU  ePKPpre 02:07:25.29  -6.9X 140.5 337                                   STU 
      ePKPdf  02:07:32.51   0.3X
 ESK  ePKPdf  02:07:26.22  -0.7  137.7 352                                   ESK 
 BFO  ePKPpre 02:07:26.46  -7.0X 141.2 337                                   BFO 
      ePKPdf  02:07:33.27  -0.2X
      eSKP    02:10:36.73 -13.0X
 ECH  ePKPpre 02:07:28.32  -6.1X 141.7 338                                   ECH 
      ePKPdf  02:07:33.56  -0.9X
      eSKP    02:10:41.62  -9.0X
 TUE  ePKPdf  02:07:32.09  -3.7X 142.3 335                                   TUE 
      eSKP    02:10:56.88   1.8X
 CUC  ePKPdf  02:07:35.21  -2.9  143.7 322                                   CUC 
 VLC  ePKPdf  02:07:35.47  -2.5  143.7 331                                   VLC 
 AQU  ePKPdf  02:07:36.30  -1.5  143.5 327                                   AQU 
 TIP  ePKPdf  02:07:36.41  -1.6  143.6 320                                   TIP 
 CEL  ePKPdf  02:07:38.91  -1.0  144.7 319                                   CEL 
 SSB  ePKPbc  02:07:41.38   0.8  145.2 338                                   SSB 
 VSL  ePKPdf  02:07:44.48  -0.4  147.7 327                                   VSL 
      ePKPbc  02:07:48.20   0.3X
 KEST ePKPdf  02:07:49.69   0.3  150.3 322                                   KEST
      ePKPbc  02:07:55.52   0.7X
 ESLA ePKPdf  02:07:53.36   0.2  152.9 345                                   ESLA
      ePKPbc  02:08:00.88   0.3X
      ePKPab  02:08:12.70   0.4X
 MTE  ePKPdf  02:07:53.52   0.4  152.9 351                                   MTE 
      ePKPbc  02:08:01.00   0.4X
      ePKPab  02:08:13.03   0.7X
 PAB  ePKPdf  02:07:53.54   0.0  153.1 345                                   PAB 
      ePKPbc  02:08:01.42   0.4X
      ePKPab  02:08:13.33   0.1X
 RCBR ePKPbc  02:07:53.79  -0.8  150.0 129                                   RCBR
 TAM  ePKPdf  02:08:03.59   0.3  160.4 300                                   TAM 
      ePKPab  02:08:45.78   0.6X
 TOA0 ePKPdf  02:08:07.71  -1.2  165.9 270                                   TOA0
      ePKPab  02:09:08.96  -0.9X



 Generated 2009 APR 22 at 03:28 UTC

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


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