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Earthquake Hazards Program
Phase Data

Explanation of Parameters


      1 MAY 2008  (122)

     ot  = 17:44:54.54   +/-   1.17              SOUTHERN SUMATRA, INDONESIA     
     lat =      -2.886   +/-    6.9
     lon =     101.193   +/-    7.0              MAGNITUDE 5.1 (GS)       
     dep =        49.1   +/-    9.4   

     155 km (95 miles) NW of Bengkulu, Sumatra, Indonesia (pop 262,000)
     235 km (145 miles) SSE of Padang, Sumatra, Indonesia
     545 km (340 miles) SSW of SINGAPORE
     715 km (445 miles) WNW of JAKARTA, Java, Indonesia
 
     Felt (II) at Padang and Painan.

     nph =   72 of  93    se = 0.86    FE=274                            A   

     error ellipse = ( 44.5, 46.9, 17.9;234.4, 42.7,  8.7;139.8,  4.9,  5.8)

 mb = 5.1 ( 25)  ML = 0.0 (  0)  mblg = 3.6 (  3)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 PSI  Pn      17:46:20.35  -0.4    6.0 338                                   PSI 
      LR      17:49:08.53                                  
 KULM eP      17:46:50.56   0.4    8.1 356 d:2.5+2     7.1X L:9.2-2 .85 4.4X KULM
                                           g:7.8-2 .95 3.7  b:6.6+1 .85 5.5X
 KSM  eP      17:47:18.08   1.2   10.1  65 L:2.1-2 .80 4.1X g:1.4-2 .80 3.2  KSM 
                                           b:1.4+1 .80 5.2X
 KAPI eP      17:49:06.32  -2.0   18.6  97 b:9.2+1 1.0 4.9                   KAPI
 CMAR P       17:49:35.35  -2.2   21.3 354                                   CMAR
      PcP     17:53:41.90   1.3X
      LR      17:57:44.77                                  
 CM31 eP      17:49:35.76  -1.8   21.3 354                                   CM31
 CHTO eP      17:49:40.70  -0.6   21.7 354 b:5.8+0 .70 4.1                   CHTO
 MBWA eP      17:50:19.60   0.1   25.6 137                                   MBWA
 TGY  P       17:50:24.26   2.5   25.8  49                                   TGY 
 FITZ eP      17:50:43.60  -0.4   28.3 124 g:1.0-2 .88 3.8  b:9.5+0 .83 4.5  FITZ
 KAKA eP      17:51:14.84  -5.0X  32.4 109                                   KAKA
 ENH  eP      17:51:32.27  -0.7   33.9  13 b:1.5+1 .75 5.0                   ENH 
 LSA  eP      17:51:32.84   0.3   33.8 344 b:4.1+0 .55 4.6                   LSA 
 WRA  P       17:51:55.36  -0.3   36.5 120                                   WRA 
      PcP     17:54:18.83   0.2X
 WB2  eP      17:51:55.42  -0.3   36.5 120                                   WB2 
 WRAB eP      17:51:56.49   0.8   36.5 120 b:1.8+1 .60 5.2                   WRAB
 ASAR P       17:52:06.60   0.3   37.8 126                                   ASAR
      PcP     17:54:23.05   0.6X
 CTAO eP      17:53:22.42   0.0   47.1 115                                   CTAO
 SONM P       17:53:50.58   1.1   50.7   5                                   SONM
      PcP     17:55:06.22   0.1X
      LR      18:16:41.86                                  
 ULN  eP      17:53:51.18   1.1   50.8   5 b:1.4+1 .70 5.1                   ULN 
 TKM2 eP      17:53:52.53  -0.1   51.1 336 b:2.3+1 .65 5.3                   TKM2
 UCH  eP      17:53:52.70   0.6   51.0 335 b:7.5+0 .83 4.8                   UCH 
 AML  eP      17:53:54.82   0.7   51.3 334 b:2.1+1 .73 5.3                   AML 
 AAK  eP      17:53:55.42   1.1   51.3 335 b:7.7+0 .90 4.7                   AAK 
 EKS2 eP      17:53:57.71   1.0   51.7 334 b:4.0+1 .78 5.5                   EKS2
      e       17:54:11.47  depth =  50.9X
 MK31 eP      17:54:00.31  -0.2   52.2 344                                   MK31
 MKAR P       17:54:00.73   0.2   52.2 344                                   MKAR
      LR      18:21:08.94                                  
 MJAR P       17:54:00.91   0.1   52.2  38                                   MJAR
 EIDS eP      17:54:06.63   0.7   52.9 120 b:1.5+1 .95 5.0                   EIDS
 TLY  eP      17:54:17.18   0.7   54.4   2 b:1.6+1 .90 5.0                   TLY 
 KURK eP      17:54:33.85   0.2   56.8 343 b:1.7+1 .70 5.2                   KURK
 ZAA0 eP      17:54:43.87   0.0   58.3 349                                   ZAA0
 ZALV P       17:54:44.03   0.1   58.3 349                                   ZALV
      LR      18:21:11.22                                  
 BVAR P       17:55:05.19  -0.5   61.4 339                                   BVAR
      LR      18:22:31.75                                  
 BRVK eP      17:55:05.56  -0.6   61.5 339 b:1.2+1 .70 5.1                   BRVK
 YSS  eP      17:55:08.08   1.0   61.6  31 b:3.0+1 .90 5.4                   YSS 
 ABKAReP      17:55:15.76  -0.5   63.0 331 b:1.7+1 .60 5.4                   ABKA
 AKTK P       17:55:27.02  -0.5   64.7 331                                   AKTK
 YAK  eP      17:55:49.61  -0.6   68.3  14 b:4.8+1 .70 5.6                   YAK 
 ARU  eP      17:55:51.22  -0.3   68.5 336 b:1.7+1 1.0 5.0                   ARU 
 MALT eP      17:56:07.12   0.7   70.8 312 b:6.4+0 1.1 4.4                   MALT
 PETK P       17:56:18.58  -0.5   73.0  32                                   PETK
      LR      18:30:04.18                                  
 BRTR P       17:56:29.50  -0.5   74.8 312                                   BRTR
 BR131eP      17:56:29.59  -0.4   74.8 312                                   BR13
 TIXI eP      17:56:38.01  -1.1   76.5   9 b:3.3+1 1.4 5.1                   TIXI
 BOSA P       17:56:38.13  -0.6   76.3 241                                   BOSA
      LR      18:22:34.25                                  
 AKASGP       17:57:03.40  -0.2   80.9 322                                   AKAS
 BILL eP      17:57:16.79  -0.4   83.6  20 b:3.9+0 1.0 4.4                   BILL
 SUW  eP      17:57:26.41   0.3   85.3 325 b:3.3+1 .70 5.6                   SUW 
 FINESP       17:57:27.08   0.4   85.4 332                                   FINE
      PP      18:00:48.90   3.4X
 ARCESP       17:57:38.00   0.3   87.7 340                                   ARCE
      LR      18:38:49.49                                  
 MORC eP      17:57:40.75   0.8   88.1 320 b:6.1+1 2.5 5.4                   MORC
 GOLS iP      17:57:45.29   1.1   89.0 316                                   GOLS
 GROS iP      17:57:45.64   0.8   89.1 316                                   GROS
 PERS iP      17:57:47.00   0.9   89.4 317                                   PERS
 GERESP       17:57:52.39   1.0   90.5 319                                   GERE
 NOA  P       17:58:00.38   0.1   92.5 331                                   NOA 
      LR      18:43:57.09                                  
 YKA  PKP     18:03:28.94  -0.6  114.9  17                                   YKA 
 ETW  ePKPdf  18:03:43.54  -2.1  122.9  32                                   ETW 
 EDM  ePKPdf  18:03:44.16  -0.1  122.3  24                                   EDM 
 HUMO ePKPdf  18:03:49.40   1.1  124.3  38                                   HUMO
 BOZ  ePKPdf  18:03:57.94   1.2  128.6  29                                   BOZ 
 NVAR PKP     18:03:58.85   0.1  129.5  40                                   NVAR
 ULM  PKP     18:03:59.72  -0.5  130.6  14                                   ULM 
 PDAR PKP     18:04:02.60  -0.3  131.8  30                                   PDAR
 RSSD ePKPdf  18:04:05.15  -0.5  133.3  25                                   RSSD
 SSPA ePKPpre 18:04:16.34  -5.9X 142.4 359                                   SSPA
 BINY ePKPpre 18:04:19.67   0.3  140.8 357                                   BINY
 WMOK ePKPdf  18:04:20.76  -3.3X 143.3  28                                   WMOK
 TXAR PKP     18:04:26.27  -0.4  144.7  39                                   TXAR
 MIAR ePKPdf  18:04:27.11  -1.0  145.6  22                                   MIAR
 WVT  ePKPab  18:04:28.65  -0.9  145.9  13                                   WVT 
 TZTN ePKPab  18:04:29.80  -1.0  146.2   7                                   TZTN
 JCT  ePKPab  18:04:30.14  -0.6  146.1  34                                   JCT 
 PLAL ePKPdf  18:04:30.51   0.2  146.9  14                                   PLAL
 CPCT ePKPdf  18:04:32.01   1.3X 147.2   9                                   CPCT
 SWET ePKPab  18:04:32.14  -2.4X 147.2  11                                   SWET



 Generated 2008 MAY 20 at 15:41 UTC

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


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