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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     30 APR 2009  (120)

     ot  = 01:58:42.69   +/-   0.64              STATE OF YAP, MICRONESIA        
     lat =      11.002   +/-    6.5
     lon =     140.462   +/-    6.3              MAGNITUDE 4.9 (GS)       
     dep =        45.9   +/-    5.4   

     305 km (190 miles) ENE of Yap, Micronesia
     540 km (335 miles) WSW of HAGATNA, Guam
     620 km (385 miles) WSW of Rota, Northern Mariana Islands
     1995 km (1240 miles) WNW of PALIKIR, Pohnpei, Micronesia

     nph =   37 of  39    se = 0.75    FE=209                            A   

     error ellipse = ( 42.1, 14.6, 10.8;136.6, 16.7,  9.0;273.2, 67.5,  7.9)

 mb = 4.8 ( 25)  ML = 4.6 (  1)  mblg = 4.2 (  2)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 GUMO ePn     01:59:56.18   0.7    5.0  59 L:5.8-1 2.0 4.6                   GUMO
      eS      02:00:55.97  S res =   3.8X
 PMG  eP      02:03:25.44  -0.6   21.3 162 b:2.9+1 .90 4.6                   PMG 
 SSLB eP      02:03:39.26   0.7   22.5 307 g:6.2+0 1.0 4.1  b:3.4+1 .90 4.8  SSLB
 YHNB eP      02:03:40.74   0.6   22.6 309 g:5.3-2 1.0 4.3  b:5.3+1 1.0 4.9  YHNB
 MAJO eP      02:04:05.89  -1.0   25.5 356 b:3.0+0 .54 4.1                   MAJO
 WRAB eP      02:04:57.10  -1.8   31.3 191 b:1.5+1 1.1 4.7                   WRAB
 MSVF eP      02:07:08.77   0.3   46.8 127 b:1.5+1 .92 4.9                   MSVF
 MK31 eP      02:08:47.68   0.0   60.4 318                                   MK31
 MKAR eP      02:08:48.00   0.4   60.4 318                                   MKAR
 KURK eP      02:09:10.09  -0.3   63.8 321 b:1.0+1 .90 4.9                   KURK
 KKAR eP      02:09:36.98   0.0   67.9 312 b:6.0-1 .57 3.8                   KKAR
 BRVK eP      02:09:45.18  -0.5   69.4 323 b:7.3+0 1.0 4.6                   BRVK
 SML  eP      02:09:57.42  -1.2   71.5  28 b:2.2+0 1.0 4.0                   SML 
 COLD eP      02:10:00.83  -0.4   72.0  23 b:8.0+0 1.0 4.6                   COLD
 PAX  eP      02:10:06.39  -1.4   73.0  27 b:6.3+0 1.0 4.5                   PAX 
 BMRM eP      02:10:07.67  -0.7   73.1  29 b:1.4+1 1.2 4.8                   BMRM
 DOT  eP      02:10:10.86  -1.1   73.8  27 b:5.6+0 .80 4.6                   DOT 
 ABKAReP      02:10:22.49  -0.1   75.6 318 b:2.5-1 .27 3.7X                  ABKA
 DLBC eP      02:10:49.58  -0.1   80.5  32                                   DLBC
 YKW3 eP      02:11:22.90  -0.4   87.1  27 b:1.1-1 .85 3.1X                  YKW3
 HUMO eP      02:11:25.87   0.4   87.4  47 b:1.7+1 1.5 5.0                   HUMO
 YBH  eP      02:11:27.67   0.3   87.8  48 b:1.1+1 1.2 4.9                   YBH 
 WDC  eP      02:11:29.03  -0.1   88.2  49 b:9.4+0 1.3 4.9                   WDC 
 MOD  eP      02:11:36.13   0.6   89.5  47 b:6.4+0 1.1 4.8                   MOD 
 NEW  eP      02:11:37.58   0.0   90.0  41 b:1.3+1 1.8 4.9                   NEW 
 BEKR eP      02:11:37.85   0.1   90.0  49 b:8.5+0 1.4 4.9                   BEKR
 CMB  eP      02:11:39.82   0.2   90.4  51 b:1.8+1 1.8 5.1                   CMB 
 WVOR eP      02:11:40.97   0.5   90.6  47 b:8.1+0 1.2 4.9                   WVOR
 MFID eP      02:11:48.12  -0.2   92.3  45 b:5.6+0 1.0 4.9                   MFID
 HLID eP      02:11:52.95   0.2   93.2  45 b:3.3+0 1.0 4.7                   HLID
 MCMT eP      02:11:55.54  -0.2   93.9  43                                   MCMT
 DUG  eP      02:12:03.30   0.4   95.4  47 b:4.2+1 2.6 5.4                   DUG 
 ELK  epP     02:12:07.89   0.0   93.5  48                                   ELK 
 TSUM qPKPdf  02:17:39.03   1.1  124.5 254                                   TSUM
 LCO  ePKPdf  02:18:18.29   0.9  145.8 126                                   LCO 
 LPAZ ePKPdf  02:18:29.18   1.5  151.7 104                                   LPAZ
      ePKPbc  02:18:35.27   1.2X
 LVC  ePKPbc  02:18:29.57   1.0  149.7 116                                   LVC 



 Generated 2009 APR 30 at 02:47 UTC

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


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