Link to USGS home page.
Earthquake Hazards Program
Phase Data

Explanation of Parameters


     11 APR 2009  (101)

     ot  = 21:45:22.18   +/-   0.61              KEPULAUAN SANGIHE, INDONESIA    
     lat =       4.396   +/-    2.9
     lon =     125.477   +/-    4.5              MAGNITUDE 5.1 (GS)       
     dep =       158.8   +/-    5.8   

     195 km (120 miles) S of General Santos, Mindanao, Philippines
     295 km (185 miles) S of Davao, Mindanao, Philippines
     1230 km (770 miles) SSE of MANILA, Philippines
     2385 km (1480 miles) ENE of JAKARTA, Java, Indonesia

     nph =  103 of 165    se = 0.92    FE=263                            A   

     error ellipse = (277.2, 76.2,  9.0; 76.7, 13.0,  6.8;167.8,  4.7,  4.3)

 mb = 4.8 ( 45)  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
 DAV  ePn     21:46:05.93   0.2    2.7   2 L:1.5+1 1.0 5.2X                  DAV 
      eS      21:46:41.81  S res =   2.5X
 KKM  ePn     21:47:37.46   3.6X   9.4 280                                   KKM 
 TGY  P       21:47:51.94   1.5   10.6 335                                   TGY 
 KAPI ePn     21:47:54.01  -0.7   11.0 212                                   KAPI
 KSM  eP      21:48:53.36   1.8   15.4 260 b:1.3+2 .80 5.3                   KSM 
 TWG  eP      21:49:28.30  -1.4   18.8 347                                   TWG 
 YULB eP      21:49:32.60  -2.6   19.3 348 b:1.8+1 .70 4.6                   YULB
      eS      21:52:58.53  S res =  -6.8X
 TPUB eP      21:49:35.02  -0.8   19.4 346 b:2.9+1 .70 4.8                   TPUB
      eS      21:53:00.53  S res =  -5.9X
 UGM  eP      21:49:36.71   1.7   19.3 231 b:3.9+2 1.1 5.7                   UGM 
 SSLB eP      21:49:38.65  -1.4   19.8 348 b:2.7+1 .70 4.8                   SSLB
      eS      21:53:08.05  S res =  -6.3X
 YHNB eP      21:49:48.53   0.1   20.5 349                                   YHNB
 GUMO eP      21:49:56.43   1.0   21.2  63 b:8.0+2 1.4 6.0X                  GUMO
 FITZ eP      21:50:05.55  -1.8   22.4 180 g:1.7-1 1.1 4.7X b:9.1+1 .75 5.3  FITZ
      e       21:53:57.23   0.4X
      S       21:53:58.96  S res =  -2.3X
 JOW  eP      21:50:09.28   0.9   22.5   7 b:1.5+1 1.0 4.4                   JOW 
 IPM  eP      21:50:26.85   0.9   24.4 271 b:1.1+2 .90 5.4                   IPM 
 KULM eP      21:50:29.45   0.1   24.8 273                                   KULM
 COEN eP      21:50:33.75  -0.6   25.3 136 b:2.2+2 1.1 5.6                   COEN
 WRAB eP      21:50:36.76  -1.1   25.7 160 g:3.3-2 .75 4.3X b:3.3+1 .75 5.0  WRAB
      eS      21:54:48.86  S res =  -6.0X
 WRA  P       21:50:36.78  -1.1   25.7 160                                   WRA 
      pP      21:51:08.25  depth = 153.0X
      S       21:54:49.13  S res =  -5.8X
      ScP     21:57:27.97  -0.9X
      ScS     22:01:15.18
 PMG  eP      21:50:36.99   0.1   25.6 122                                   PMG 
      ScP     21:57:27.36  -1.2X
 MBWA eP      21:50:39.32  -1.3   26.0 192 b:1.2+2 .90 5.6                   MBWA
 PSI  P       21:50:46.98   1.2   26.6 267                                   PSI 
      ScP     21:57:30.92  -0.7X
 CBIJ P       21:50:54.50  -0.6   27.6  34                                   CBIJ
 ASAR P       21:51:07.21  -0.7   29.1 164                                   ASAR
      S       21:55:45.25  S res =  -2.8X
      ScP     21:57:38.05  -1.0X
 JNU  eP      21:51:07.25  -0.1   29.0   9 b:9.5+0 1.1 4.4                   JNU 
 AS31 eP      21:51:07.28  -0.6   29.1 164                                   AS31
      eS      21:55:44.45  S res =  -3.5X
 CMAR P       21:51:13.30   1.9   29.5 300                                   CMAR
      PcP     21:54:13.55   0.3X
      ScP     21:57:40.40   0.0X
 CHTO eP      21:51:14.22   1.5   29.6 301 b:7.0+1 .90 5.4                   CHTO
      ePcP    21:54:13.86   0.2X
      eScP    21:57:40.16  -0.7X
 CTAO eP      21:51:31.50  -0.1   31.8 141 b:1.4+2 1.7 5.5                   CTAO
 CTA  P       21:51:31.82   0.2   31.8 141                                   CTA 
 KSAR P       21:51:42.83   1.0   33.0   4                                   KSAR
      PcP     21:54:23.25   1.0X
      ScP     21:57:51.45  -0.2X
      LR      22:04:43.60                                  
 MJAR P       21:51:50.50  -0.9   34.1  18                                   MJAR
      S       21:57:04.03  S res =  -1.3X
      ScP     21:57:55.39  -0.2X
 MAJO eP      21:51:50.72  -0.7   34.1  18 b:2.3+1 1.0 4.9                   MAJO
 FORT eP      21:51:59.58  -0.4   35.1 176                                   FORT
 NWAO eP      21:52:23.82  -0.5   37.9 191 b:3.9+1 1.0 5.1                   NWAO
 BBOO eP      21:52:27.72   0.0   38.3 166 b:1.0+3 .55 6.8X                  BBOO
      ePP     21:53:56.06  -2.8X
 EIDS eP      21:52:29.89  -0.5   38.6 141 b:3.4+1 1.0 5.0                   EIDS
 STKA eP      21:52:35.01   0.1   39.2 158 b:9.5+0 .80 4.6                   STKA
      S       21:58:21.27  S res =  -2.1X
      eS      21:58:22.12  S res =  -1.2X
 ERM  eP      21:52:48.11   1.4   40.6  20 b:3.1+1 1.0 4.9                   ERM 
 ASAJ eP      21:53:00.74   0.3   42.3  18 b:2.3+1 .80 4.8                   ASAJ
 ARMA eP      21:53:04.64   0.8   42.7 146 b:2.9+1 1.0 4.8                   ARMA
 CAN  eP      21:53:24.66   0.7   45.3 153 b:4.5+1 .90 5.1                   CAN 
 ULN  eP      21:53:29.78  -0.8   46.1 343 b:2.2+1 1.8 4.5                   ULN 
 SONM P       21:53:31.42  -0.4   46.3 342                                   SONM
      PcP     21:55:05.38   0.7X
      ScP     21:58:42.06  -1.1X
 TAU  eP      21:54:09.66   1.4   51.1 159 b:1.2+1 .70 4.7                   TAU 
 PETK P       21:54:40.10   1.0   55.3  23                                   PETK
 MKAR P       21:54:46.03  -0.3   56.3 326                                   MKAR
      PcP     21:55:43.60   1.7X
      ScP     21:59:24.27  -2.0X
      S       22:02:27.02  S res =   2.9X
              22:32:02.33
 MK31 eP      21:54:46.14  -0.2   56.3 326                                   MK31
      eScP    21:59:24.43  -1.9X
 YAK  eP      21:54:55.71   0.7   57.6   2 b:5.9+1 .70 5.6                   YAK 
      epP     21:55:29.62  depth = 143.8X
 TKM2 eP      21:55:01.22  -0.3   58.4 319                                   TKM2
 AAK  eP      21:55:05.53  -0.2   59.0 318 b:1.4+1 .92 4.8                   AAK 
 ZALV P       21:55:06.65  -1.4   59.4 333                                   ZALV
      ScP     21:59:37.03  -2.9X
      S       22:03:04.08  S res =  -0.4X
 EKS2 eP      21:55:09.32   0.3   59.5 318 b:9.6+0 1.0 4.6                   EKS2
 KBL  eP      21:55:12.82  -0.6   60.1 308 b:6.9+0 .70 4.7                   KBL 
 KURK eP      21:55:15.47   0.1   60.5 328                                   KURK
      eScP    21:59:43.41  -1.4X
 RPZ  eP      21:55:33.31   0.9   63.0 144                                   RPZ 
 BRVK eP      21:55:52.78   0.3   66.2 327 b:2.9+1 .95 5.1                   BRVK
 TIXI eP      21:55:58.39  -0.4   67.2   1 b:6.2+0 .45 4.7                   TIXI
      epP     21:56:34.70  depth = 150.5X
 BILL eP      21:56:10.92  -0.6   69.2  15 b:1.1+1 1.0 4.6                   BILL
 ABKAReP      21:56:20.64  -1.0   70.8 321 b:2.7+0 .58 4.3                   ABKA
      e       21:56:41.60   0.3X
 ARU  eP      21:56:37.92  -0.6   73.7 328 b:8.7+0 .75 4.6                   ARU 
 GAMB eP      21:56:42.64   0.9   74.3  24 b:2.4+1 1.2 4.8                   GAMB
 KBZ  P       21:57:23.10   0.5   81.6 313                                   KBZ 
 KDAK P       21:57:25.13   0.9   82.0  32                                   KDAK
 TRF  eP      21:57:31.87  -0.3   83.5  27 b:1.3+1 1.1 4.6                   TRF 
 MAW  eP      21:57:34.30   0.3   83.9 200 b:1.9+0 .83 3.9                   MAW 
 PMR  eP      21:57:34.40   0.1   84.0  29 b:1.0+1 1.0 4.6                   PMR 
 COLD eP      21:57:34.53   1.3   83.8  23 b:3.0+1 1.0 5.0                   COLD
 VNDA eP      21:57:35.44   0.1   84.2 173 b:5.5+0 .70 4.5                   VNDA
 MCK  eP      21:57:35.76   0.6   84.1  26 b:5.1+1 1.4 5.1                   MCK 
 ILAR P       21:57:38.65  -1.0   85.0  25                                   ILAR
      pP      21:58:16.90  depth = 151.7X
 MALT eP      21:57:40.35   0.2   85.0 308 b:7.5+0 1.3 4.3                   MALT
 OBN  eP      21:57:43.49  -0.1   85.8 325 b:2.2+1 .80 5.0                   OBN 
 KMBO eP      21:57:55.69  -1.2   88.3 269 b:2.8+0 .90 4.3                   KMBO
 BRTR P       21:57:56.15  -1.7   88.6 310                                   BRTR
 BR131eP      21:57:57.53  -0.3   88.6 310 b:3.5+0 .83 4.4                   BR13
 ARCESP       21:57:59.78  -0.8   89.4 340                                   ARCE
 SPITSP       21:58:01.19  -0.1   89.6 349                                   SPIT
 INK  P       21:58:02.68  -0.7   90.0  21                                   INK 
      PKKPbc  22:15:33.35  -3.4X
 FINESP       21:58:05.40  -1.1   90.7 332                                   FINE
      PKiKP   22:02:59.68  -0.1X
 AKASGP       21:58:06.20  -0.2   90.6 321                                   AKAS
 FIA1 eP      21:58:07.68   1.2   90.7 332                                   FIA1
 SUW  eP      21:58:20.18  -0.4   93.7 325 b:2.0+1 .85 5.4                   SUW 
 BUR08eP      21:58:20.85  -0.1   93.7 318                                   BUR0
 QSPA P       21:58:23.10  -0.2   94.3 180                                   QSPA
      PKKPbc  22:15:22.92  -3.8X
 NOA  P       21:58:36.66  -1.9   97.6 333                                   NOA 
      LR      22:46:02.48                                  
 YKA  P       21:58:46.69   0.3   99.4  24                                   YKA 
      pP      21:59:22.89  depth = 140.7X
      PKiKP   22:03:14.80  -0.2X
      PKKPbc  22:15:04.95  -6.8X
 GERESP       21:58:52.33  -0.7X 100.8 321                                   GERE
 NVAR PKiKP   22:03:31.13   0.5  107.4  48                                   NVAR
      PP      22:03:59.80   8.1X
      PKKPbc  22:14:46.53  -1.0X
 PDAR PKiKP   22:03:39.25   0.7  111.7  40                                   PDAR
      PKKPbc  22:14:30.90  -3.1X
      PKKPab  22:14:41.20  -2.1X
 ANMO PKP     22:03:50.65   0.7  117.5  47                                   ANMO
 SCHQ PKP     22:03:54.35   0.2  120.1   8                                   SCHQ
 TORD PKP     22:03:57.08  -0.8  121.5 288                                   TORD
      pPKP    22:04:37.00  -2.8X
      PP      22:05:36.40   4.5X
 TOA0 ePKPdf  22:03:57.28  -1.0  121.5 288                                   TOA0
 TXAR PKP     22:03:59.64   0.7  122.2  51                                   TXAR
 JCT  ePKPdf  22:04:04.29   0.9  124.6  48                                   JCT 
 DBIC PKP     22:04:12.40  -0.3  129.2 282                                   DBIC
      ePKPdf  22:04:12.67   0.0X
      pPKP    22:04:52.65  -1.9X
      SKPbc   22:07:17.87
 CMIG PKP     22:04:24.05   1.0  134.8  61                                   CMIG
 JTS  ePKPdf  22:04:43.67  -0.3  146.4  64                                   JTS 
 LCO  ePKPbc  22:04:57.87   0.3  151.1 150                                   LCO 
 HNR  LR      22:05:01.40         37.0 112                                   HNR 
 LPAZ PKP     22:05:07.68   1.2  162.2 132                                   LPAZ
      pPKP    22:05:47.55  -1.1X
 CPUP PKPab   22:05:34.90   0.2  158.0 173                                   CPUP
 ROSC PKPab   22:05:38.54   2.0  158.2  65                                   ROSC
 BDFB PKPab   22:06:14.83  -0.2  167.1 209                                   BDFB
 PLCA SKPbc   22:07:56.63   0.4  141.1 160                                   PLCA



 Generated 2009 MAY 11 at 01:16 UTC

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


FirstGov button  Take Pride in America button