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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     25 JUN 2008  (177)

     ot  = 01:52:38.42   +/-   2.70              NIAS REGION, INDONESIA          
     lat =       1.379   +/-    5.2
     lon =      97.176   +/-    5.0              MAGNITUDE 5.3 (GS)       
     dep =        33.7   +/-   18.2   

     185 km (115 miles) W of Sibolga, Sumatra, Indonesia
     295 km (180 miles) SW of Medan, Sumatra, Indonesia
     540 km (335 miles) WSW of KUALA LUMPUR, Malaysia
     1350 km (840 miles) NW of JAKARTA, Java, Indonesia
 
     Felt (III) at Gunungsitoli and (II) at Sibolga.

     nph =  104 of 125    se = 0.85    FE=706                            B   

     error ellipse = ( 36.0, 78.7, 28.2;252.5,  9.1,  7.1;161.4,  6.6,  6.5)

 mb = 5.3 ( 58)  ML = 5.0 (  1)  mblg = 4.3 (  3)  md = 0.0 (  0)  MS = 5.1 (  1)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 KULM ePn     01:53:53.76  -0.2    5.2  42 d:3.4+2     6.2X L:1.4+0 1.3 5.0  KULM
                                           g:1.7+0 1.3 4.6  b:7.5+2 1.1 6.0X
 KSM  ePn     01:55:44.84   2.2X  13.1  89                                   KSM 
 CM31 eP      01:56:36.78   2.3X  17.1   6 g:6.3-2 1.0 4.1  b:6.3+1 1.0 4.7  CM31
 CHTO eP      01:56:37.09  -1.8   17.4   6 b:6.2+1 1.2 4.6                   CHTO
 KKM  eP      01:57:04.21   0.6X  19.6  76 b:2.8+2 1.3 5.4                   KKM 
 QIZ  eP      01:57:24.42   0.0   21.5  34 g:7.1-2 1.1 4.3  b:8.2+2 2.2 5.8  QIZ 
 ENH  eP      01:58:52.49  -0.6   31.0  21 b:1.2+2 1.1 5.6                   ENH 
 MBWA eP      01:58:56.50  -0.4   31.4 137 b:2.0+1 .97 4.9                   MBWA
 SSLB eP      01:59:02.37   0.1   32.0  44 b:1.7+2 1.3 5.8                   SSLB
 YULB eP      01:59:03.33   1.2   32.0  45 b:1.2+2 1.2 5.7                   YULB
 NACB eP      01:59:09.02   0.8   32.7  44 b:1.0+2 1.3 5.6                   NACB
 BJT  eP      02:00:28.87   1.1   42.2  22 b:6.1+1 .70 5.4                   BJT 
 KBL  eP      02:00:28.95   0.8   42.2 325 b:1.5+1 1.0 4.6                   KBL 
 FORT eP      02:00:40.14   1.9   43.4 140 b:7.8+1 .90 5.5                   FORT
 INCN eP      02:00:50.92   0.1   45.0  34 b:1.3+2 1.3 5.7                   INCN
 UCH  eP      02:00:56.10   1.1   45.5 336 b:2.9+1 .92 5.2                   UCH 
 TKM2 eP      02:00:57.20   1.2   45.6 338 b:5.9+1 1.2 5.4                   TKM2
 AML  eP      02:00:57.88   0.9   45.7 336 b:8.1+1 1.2 5.5                   AML 
 EKS2 eP      02:01:01.24   1.4   46.1 336 b:1.5+1 .60 5.1                   EKS2
 MK31 eP      02:01:07.79   0.9   47.1 346                                   MK31
 ULN  eP      02:01:08.07   0.9   47.1   9 b:1.1+2 1.7 5.6                   ULN 
 COEN eP      02:01:12.94  -2.0   48.0 110 b:3.3+2 1.2 6.2                   COEN
 TLY  eP      02:01:31.90  -0.7   50.4   5 b:2.6+2 2.8 5.7                   TLY 
 MAJO eP      02:01:40.28  -1.3   51.6  42 b:1.0+1 .74 4.9                   MAJO
 HIA  eP      02:01:41.42   0.8   51.5  19 b:5.3+1 1.2 5.4                   HIA 
 KURK eP      02:01:42.38   0.9   51.6 345 b:1.2+2 1.2 5.7                   KURK
 MDJ  eP      02:01:43.54   1.1   51.7  29 b:1.1+2 1.4 5.6                   MDJ 
 STKA eP      02:01:54.86  -0.9   53.5 132 b:2.0+1 1.6 4.8                   STKA
 ZAA0 eP      02:01:54.91   0.4   53.4 351                                   ZAA0
 BRVK eP      02:02:14.18  -0.4   56.1 341 b:2.6+1 .95 5.2                   BRVK
 ABKAReP      02:02:22.93  -0.3   57.3 332 b:8.5+0 .50 5.0                   ABKA
 EIDS eP      02:02:31.21  -0.5   58.5 121 b:2.5+1 .85 5.3                   EIDS
 KMBO eP      02:02:41.35  -1.1   60.0 268 b:5.9+1 2.0 5.4                   KMBO
      epP     02:02:51.68  depth =  34.0X
 YSS  eP      02:02:43.88   0.7   60.2  34 b:1.1+2 1.2 5.8                   YSS 
 ARMA eP      02:02:47.94   1.2   60.7 126 b:3.6+1 1.2 5.4                   ARMA
 GNI  eP      02:02:49.87  -0.1   61.1 316 b:6.2+1 1.3 5.6                   GNI 
 ARU  eP      02:03:01.39  -0.5   63.0 337 b:8.9+1 1.5 5.7                   ARU 
 HNR  eP      02:03:04.26  -1.1   63.4 101 b:2.5+2 1.4 6.1                   HNR 
 KIV  eP      02:03:09.92   0.1   64.2 319 b:4.9+1 1.3 5.4                   KIV 
 YAK  eP      02:03:16.43   0.0   65.3  16 b:2.6+2 1.4 6.1                   YAK 
 CSS  eP      02:03:33.88  -0.4   67.9 307                                   CSS 
 BR131eP      02:03:40.01  -0.8   69.0 312                                   BR13
 LSZ  eP      02:03:48.45   0.1   70.1 253 b:3.4+1 1.8 5.1                   LSZ 
 OBN  eP      02:03:58.76  -2.6   72.5 328 b:5.7+1 1.3 5.4                   OBN 
 TIXI eP      02:04:03.72  -0.7   73.0  10 b:1.8+2 2.1 5.7                   TIXI
 LBTB eP      02:04:11.55   0.6   73.9 244 b:1.3+2 2.4 5.5                   LBTB
 KIEV eP      02:04:15.25  -1.8   75.1 322 b:1.3+1 1.0 4.9                   KIEV
 AKBB eP      02:04:15.84  -1.2   75.1 322                                   AKBB
 BOSA eP      02:04:16.62   0.4   74.8 240 b:3.5+0 .62 4.5                   BOSA
 BUR08eP      02:04:27.71   0.2   76.9 319                                   BUR0
 KWP  eP      02:04:38.45  -0.1   78.9 320 b:6.3+1 1.5 5.4                   KWP 
 SUW  eP      02:04:40.96  -0.7   79.5 325                                   SUW 
 PSZ  eP      02:04:46.81  -0.3   80.5 318 b:3.5+1 1.5 5.1                   PSZ 
      epP     02:04:54.03  depth =  22.9X
 BILL eP      02:04:48.98  -0.5   81.0  21 b:2.4+1 1.3 5.0                   BILL
 TSUM eP      02:04:49.21   0.6   80.6 250 b:8.8+0 1.0 4.7                   TSUM
 TIP  eP      02:04:53.72  -0.1   81.7 309                                   TIP 
 ARE0 eP      02:04:56.33  -0.3   82.4 340                                   ARE0
 MORC eP      02:04:56.95   0.4   82.3 320 b:1.7+1 1.2 4.9                   MORC
 CEL  eP      02:04:57.92   0.9   82.3 308 b:1.7+1 1.0 5.1                   CEL 
 AQU  eP      02:05:07.78  -0.3   84.5 312 b:3.6+1 1.1 5.4                   AQU 
 KHC  eP      02:05:08.58  -0.8   84.8 319 b:3.0+0 1.1 4.4                   KHC 
 GRF  eP      02:05:17.20   0.0   86.3 320 b:5.6+1 1.8 5.5                   GRF 
      epP     02:05:24.40  depth =  22.6X
      eS      02:15:53.10  S res =   2.6X
      LR      02:25:53.10                  S:8.0-1 21. 5.1 
 SBA  eP      02:05:22.32   2.0   87.1 169 b:4.6+1 1.8 5.4                   SBA 
 KEST eP      02:05:23.71   0.7   87.4 306                                   KEST
 BNI  eP      02:05:32.28   0.2   89.4 315 b:1.4+1 1.3 5.1                   BNI 
 WLF  eP      02:05:32.97   0.1   89.6 319 b:2.5+1 1.3 5.3                   WLF 
 QSPA eP      02:05:39.92  -0.6   91.3 180 b:8.9+0 1.2 5.0                   QSPA
 TAM  eP      02:05:40.72   0.7   91.0 293 b:8.4+0 1.0 5.0                   TAM 
 COLD eP      02:06:08.05   0.1   97.3  21 b:1.5+1 1.6 5.2                   COLD
 CHUM eP      02:06:10.43   0.9   97.7  25 b:3.0+0 .46 5.1                   CHUM
 INK  ePdif   02:06:30.45   0.3X 102.3  17                                   INK 
 SLMT ePKPdf  02:11:33.55  -1.4  124.6  25                                   SLMT
 MSO  ePKPdf  02:11:34.23  -0.9  124.8  26                                   MSO 
 CHMT ePKPdf  02:11:34.78  -0.9  125.0  25                                   CHMT
 WVOR ePKPdf  02:11:37.30   0.2  125.7  32                                   WVOR
 HWUT ePKPpre 02:11:37.99  -7.2X 129.9  28                                   HWUT
      ePKPdf  02:11:45.12  -0.1X
 DLMT ePKPdf  02:11:38.10  -0.4  126.5  26                                   DLMT
 BOZ  ePKPdf  02:11:38.58  -0.3  126.7  25                                   BOZ 
 MCMT ePKPdf  02:11:39.47   0.2  126.8  26                                   MCMT
 HLID ePKPdf  02:11:39.97   0.3  127.1  29                                   HLID
      ePP     02:13:39.53   2.1X
 ULM  ePKPdf  02:11:40.57   0.8  127.4  11                                   ULM 
 LAO  ePKPdf  02:11:41.52   0.5  127.9  20                                   LAO 
 TPAW ePKPdf  02:11:42.64  -0.3  128.7  26                                   TPAW
 M13A ePKPdf  02:11:43.43   0.3  128.8  30                                   M13A
 REDW ePKPdf  02:11:43.44   0.3  128.8  26                                   REDW
 LOHW ePKPdf  02:11:43.45   0.5  128.8  26                                   LOHW
 BW06 ePKPdf  02:11:44.66  -0.5  129.9  26                                   BW06
 BGU  ePKPdf  02:11:45.31   0.5  129.7  30                                   BGU 
 DUG  ePKPdf  02:11:46.32   0.3  130.4  30                                   DUG 
      eSKPbc  02:15:07.04   0.1X
 RSSD ePKPdf  02:11:47.05   0.0  130.9  20                                   RSSD
 NLU  ePKPdf  02:11:47.70   0.5  130.9  30                                   NLU 
      eSKP    02:15:07.15  -2.0X
 CCUT ePKPdf  02:11:49.53   0.1  132.1  33                                   CCUT
 MSU  ePKPdf  02:11:50.12   0.9  132.0  31                                   MSU 
      eSKP    02:15:13.20   0.2X
 SRU  ePKPdf  02:11:50.94   1.1  132.3  29                                   SRU 
 TUC  ePKPdf  02:11:59.57   0.4  137.3  36                                   TUC 
 MNTX ePKPpre 02:12:00.02  -5.4X 140.8  31                                   MNTX
      ePKPdf  02:12:05.53   0.1X
 ANMO ePKPdf  02:12:00.40   0.5  137.6  29                                   ANMO
 TRQA ePKPdf  02:12:02.26   0.6  138.8 205                                   TRQA
 WVT  ePKPpre 02:12:02.54  -5.7X 142.4   7                                   WVT 
      eSKPbc  02:15:43.27  -0.4X
 MIAR ePKPpre 02:12:04.03  -5.1X 142.9  15                                   MIAR
      eSKPbc  02:15:44.47  -0.4X
 WCI  ePKPdf  02:12:04.10  -0.6  140.5   4                                   WCI 
 JCT  ePKPdf  02:12:10.52  -1.5  144.4  26                                   JCT 
 NATX ePKPbc  02:12:11.89  -0.9  145.2  18                                   NATX
 CPUP ePKPdf  02:12:12.25  -1.0  145.1 222                                   CPUP
 GOGA ePKPbc  02:12:12.94  -0.5  145.4   1                                   GOGA
 LRAL ePKPbc  02:12:12.97  -0.9  145.5   6                                   LRAL
 NHSC ePKPbc  02:12:14.25   0.2  145.6 356                                   NHSC
 VBMS ePKPbc  02:12:15.52   0.8  145.8  12                                   VBMS
 HKT  ePKPbc  02:12:16.56  -0.2  146.5  21                                   HKT 
 LCO  ePKPbc  02:12:26.82  -0.2  150.2 202                                   LCO 
 LPAZ ePKPdf  02:12:35.69   0.5  159.3 224                                   LPAZ
 OTAV ePKPdf  02:12:45.73  -1.0  175.3 290                                   OTAV



 Generated 2008 JUN 28 at 22:18 UTC

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


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