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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     22 JUL 2007  (203)

     ot  = 02:58:57.32   +/-   1.97              BATAN ISL REGION, PHILIPPINES   
     lat =      20.103   +/-    4.3
     lon =     122.017   +/-    5.4              MAGNITUDE 5.2 (GS)       
     dep =        31.1   +/-   13.5   

     35 km (20 miles) S of Basco, Batan Islands, Philippines (pop N/A)
     255 km (160 miles) NE of Laoag, Luzon, Philippines
     555 km (345 miles) S of T'AI-PEI, Taiwan
     615 km (385 miles) N of MANILA, Philippines

     nph =   72 of  83    se = 0.81    FE=248                            A   

     error ellipse = (307.8, 80.0, 21.0; 95.7,  8.5,  7.8;186.5,  5.2,  6.2)

 mb = 5.1 ( 46)  ML = 0.0 (  0)  mblg = 4.2 (  5)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 YHNB ePn     03:00:04.23  -0.4    4.6 353                                   YHNB
      eSn     03:00:58.04  S res =   1.2X
 TATO ePn     03:00:08.72   0.2    4.9 354 g:1.4+0 1.2 4.5                   TATO
 QIZ  ePn     03:01:38.54  -1.3   11.5 267 g:5.2-2 .95 3.8  b:2.8+1 .60 5.6X QIZ 
      eSn     03:03:47.16  S res =  -0.4X
 KS15 eP      03:03:07.35   2.0   18.0  15                                   KS15
 BJT  eP      03:03:31.87  -0.6   20.5 347 g:4.5-2 .80 4.2  b:4.4+1 .60 5.0  BJT 
 CHTO eP      03:03:47.95   1.0   21.8 271 b:6.4+1 1.1 5.0                   CHTO
 KSM  eP      03:03:49.76   3.1X  21.8 213                                   KSM 
      e       03:03:59.89   1.0X
 KAPI eP      03:04:19.59   0.5   25.1 185 b:4.9+1 1.0 5.1                   KAPI
 MDJ  eP      03:04:20.54   0.0   25.2  13 g:4.2-2 1.1 4.2  b:4.2+1 1.1 4.9  MDJ 
 LSA  eP      03:05:02.01   2.5X  29.5 295 g:2.3-2 1.0 4.1  b:1.0+1 .60 4.8  LSA 
 YSS  eP      03:05:20.17   2.3X  31.7  28 b:5.5+1 1.0 5.4                   YSS 
 FITZ eP      03:06:17.11   3.3X  38.1 174 b:3.3+1 1.2 5.0                   FITZ
 MBWA eP      03:06:38.30   0.1   41.1 183 b:1.7+1 .90 4.8                   MBWA
 WRAB eP      03:06:40.33  -2.1   41.6 162 b:1.2+2 1.0 5.6                   WRAB
 WB2  eP      03:06:41.20  -1.4   41.6 162                                   WB2 
 PETK eP      03:06:52.52  -0.1   42.9  31                                   PETK
 KBL  eP      03:07:40.89   1.7   48.7 299 b:6.4+1 1.2 5.5                   KBL 
 TIXI eP      03:07:58.99  -2.2   51.7   3 b:1.7+1 .90 5.0                   TIXI
 BRVK eP      03:07:59.59   0.4   51.4 323 b:3.4+1 .83 5.3                   BRVK
 STKA eP      03:08:26.13   0.4   55.0 160 b:8.7+0 .80 4.8                   STKA
 ARU  eP      03:08:52.70  -0.1   58.8 324 b:3.1+1 .80 5.5                   ARU 
 CAN  eP      03:09:07.95   1.6   60.8 155                                   CAN 
 GNI  eP      03:09:53.90   1.3   67.8 306 b:3.9+1 1.2 5.4                   GNI 
 TTA  eP      03:09:57.65   0.1   68.7  29 b:1.2+1 .80 5.1                   TTA 
 SVW2 eP      03:09:59.57   0.2   69.0  31                                   SVW2
 KIV  eP      03:09:59.83   1.2   68.8 310 b:3.7+1 .83 5.5                   KIV 
 IMA2 eP      03:10:03.31   0.5   69.5  26                                   IMA2
 CHUM eP      03:10:08.38   1.2   70.3  28                                   CHUM
 PPLA eP      03:10:08.99   0.6   70.4  29                                   PPLA
 KDAK eP      03:10:10.58   0.0   70.8  34 b:1.6+1 .80 5.1                   KDAK
 BPAW eP      03:10:10.63  -0.1   70.8  28                                   BPAW
 KTH  eP      03:10:11.47   0.1   70.9  28 b:1.1+1 .80 5.0                   KTH 
 OBN  eP      03:10:12.73  -0.3   71.2 323 b:3.2+1 .80 5.4                   OBN 
 TRF  eP      03:10:13.47   0.2   71.2  28 b:2.4+1 1.3 5.1                   TRF 
 MCK  eP      03:10:16.41   0.0   71.8  28 b:4.5+1 1.1 5.4                   MCK 
 PMR  eP      03:10:16.97  -0.8   72.0  30 b:8.9+0 .80 4.8                   PMR 
 COLA eP      03:10:17.82  -0.3   72.1  27 b:6.2+0 .75 4.7                   COLA
 MALT eP      03:10:19.51  -4.5X  72.9 305 b:2.3+1 1.0 5.1                   MALT
 EGAK eP      03:10:34.49  -0.3   74.9  26 b:1.6+1 .95 5.0                   EGAK
 DAWY eP      03:10:40.36   0.2   75.8  27                                   DAWY
 KIEV eP      03:10:42.67  -1.3   76.4 319 b:1.1+2 2.6 5.4                   KIEV
 AKBB eP      03:10:43.04  -0.8   76.4 319                                   AKBB
 INK  eP      03:10:43.91  -1.2   76.7  22                                   INK 
 ANTO eP      03:10:46.19  -0.2   76.8 308 b:2.4+1 1.2 5.1                   ANTO
 PNL  eP      03:10:47.32  -0.2   77.1  31 b:2.0+3 .68 7.3X                  PNL 
 TIRR eP      03:10:55.55  -1.0   78.7 313 b:1.6+1 1.3 4.9                   TIRR
 SUW  eP      03:10:57.65  -0.5   79.0 324 b:1.1+2 1.1 5.7                   SUW 
 SKAG eP      03:10:59.29   0.6   79.1  30 b:1.8+1 1.0 5.0                   SKAG
 KWP  eP      03:11:08.09   0.3   80.8 319 b:3.5+1 .90 5.4                   KWP 
 NAO01eP      03:11:16.53   0.2   82.4 333 b:6.4+0 .79 4.7                   NAO0
 PSZ  eP      03:11:19.74  -0.5   83.1 319 b:1.4+1 1.3 4.9                   PSZ 
 ABPO eP      03:11:20.91   1.1   83.0 247 b:1.9+1 1.0 5.1                   ABPO
 MORC eP      03:11:23.75   0.0   83.8 321 b:1.5+1 1.3 5.0                   MORC
 GVD  eP      03:11:29.31  -0.6   85.0 305                                   GVD 
 KMBO eP      03:11:33.58   0.6   85.5 267 b:3.1+1 1.1 5.4                   KMBO
 SUMG eP      03:11:36.74  -1.1   86.6 354 b:5.7+0 1.0 4.7                   SUMG
 GEC2 eP      03:11:37.32   0.1   86.5 321                                   GEC2
 CASY eP      03:11:37.45   0.6   86.6 185 b:3.1+1 1.2 5.4                   CASY
 TIP  eP      03:11:48.08   0.0   88.7 311 b:8.7+0 1.2 5.0                   TIP 
 CEL  eP      03:11:52.35  -0.4   89.7 311 b:1.4+1 .80 5.3                   CEL 
 AQU  eP      03:11:52.82   0.6   89.6 315 b:1.6+1 .90 5.3                   AQU 
 WLF  eP      03:11:55.70   0.1   90.4 324 b:1.4+1 1.0 5.2                   WLF 
 JCW  eP      03:12:00.66   0.8   91.3  37                                   JCW 
 BNI  eP      03:12:05.52  -0.3   92.5 320 b:1.3+1 1.3 5.2                   BNI 
 EDM  eP      03:12:06.39  -0.3   92.8  30                                   EDM 
      epP     03:12:14.23  depth =  24.4X
 NEW  eP      03:12:12.53   0.5   93.9  35 b:3.3+0 .93 4.7                   NEW 
 CMB  eP      03:12:29.63   0.0   97.7  45 b:3.7+0 1.0 4.8                   CMB 
 PV01 ePKP    03:17:17.28   0.0  105.1  39                                   PV01
 JCT  ePKPdf  03:17:36.66  -0.4  115.6  40                                   JCT 
 WCI  ePKPdf  03:17:38.63   0.7  116.2  25                                   WCI 
 HKT  ePKPdf  03:17:41.72  -0.4  118.3  37                                   HKT 
 TKL  ePKPdf  03:17:43.14  -1.0  119.4  24                                   TKL 
 SNAA ePKPdf  03:17:44.25   0.8  119.6 197                                   SNAA
 BCIP ePKPdf  03:18:27.08  -3.3X 143.8  39                                   BCIP
 SDV  ePKPdf  03:18:38.48  -0.3  148.6  25                                   SDV 
      ePKPbc  03:18:41.24  -1.2X
 ROSC ePKPbc  03:18:47.23   0.0  150.4  35                                   ROSC
 OTAV ePKPbc  03:18:49.53  -0.4  151.5  47                                   OTAV
 LPAZ ePKPdf  03:19:03.66   0.3  169.6  70                                   LPAZ



 Generated 2007 JUL 24 at 22:34 UTC

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

 


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