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Earthquake Hazards Program
Phase Data

Explanation of Parameters


      8 MAY 2008  (129)

     ot  = 16:49:49.02   +/-   4.70              OFF COAST OF CENTRAL AMERICA    
     lat =       3.440   +/-    5.9
     lon =     -88.345   +/-    9.2              MAGNITUDE 4.5 (GS)       
     dep =        15.7   +/-   30.9   

     270 km (170 miles) SSW of Isla del Coco, Costa Rica
     500 km (310 miles) NNE of Puerto Baquerizo Moreno, Galapagos
     855 km (530 miles) SSW of SAN JOSE, Costa Rica
     1125 km (700 miles) WNW of Guayaquil, Ecuador

     nph =   46 of  54    se = 0.97    FE=076                            C   

     error ellipse = (105.9, 84.5, 47.6;249.0,  4.4, 14.0;339.3,  3.3,  7.9)

 mb = 4.5 ( 41)  ML = 0.0 (  0)  mblg = 3.2 (  3)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 PAYG ePn     16:50:55.90  -1.1    4.5 205                                   PAYG
      eSn     16:52:01.35  S res =  12.0X
 JTS  ePn     16:51:41.07   1.9    7.6  26 d:4.8+1     5.4X L:3.2-2 .45 3.8X JTS 
      eSn     16:52:59.60  S res =  -5.4X  g:2.1-2 .85 3.2  b:1.6+1 .45 5.5X
 OTAV ePn     16:52:23.63   5.7X  10.4 108 g:1.4-2 1.0 3.1  b:1.2+1 .90 5.3X OTAV
 TGUH ePn     16:52:24.20   3.8X  10.6   6 g:1.5-1 .73 4.3X b:1.5+2 .73 6.4X TGUH
 ROSC qPn     16:53:04.62  -3.4X  14.0  84                                   ROSC
 SDV  ePn     16:54:02.34  -1.8   18.4  72 b:2.0+1 1.0 4.2                   SDV 
 LPAZ eP      16:55:40.75   0.6   28.0 135 g:4.9-3 1.1 3.3  b:2.0+0 .60 4.0  LPAZ
 MIAR eP      16:56:06.99  -1.8   31.3 352 b:7.0+0 .73 4.6                   MIAR
 LVC  eP      16:56:17.32   1.2   32.1 145 b:8.6+0 1.0 4.6                   LVC 
 MNTX eP      16:56:17.58  -0.4   32.4 332 b:5.1+0 .90 4.5                   MNTX
 WMOK eP      16:56:19.81  -0.4   32.6 344 b:8.3+0 1.1 4.6                   WMOK
 CPRX eP      16:56:22.93   0.8   32.8 336 b:8.8+0 .90 4.7                   CPRX
 LAZ  eP      16:56:42.10  -2.7   35.4 333 b:4.5+0 .74 4.4                   LAZ 
 LENM eP      16:56:43.21   0.8   35.1 333 b:5.0+0 .86 4.4                   LENM
 KSU1 qP      16:56:50.76  -1.1   36.3 349 b:1.5+1 .58 5.0                   KSU1
 ACSO eP      16:56:51.45  -6.0X  36.9   7 b:3.4+1 .38 5.5X                  ACSO
 SDCO eP      16:57:03.71   0.4   37.6 337 b:6.8+0 .98 4.4                   SDCO
 SSPA eP      16:57:04.19  -4.0X  38.2  13 b:9.2+0 .35 5.0                   SSPA
 WUAZ eP      16:57:10.86   1.0   38.4 329 b:1.0+1 1.0 4.5                   WUAZ
 MVCO eP      16:57:11.23   1.5   38.4 334 b:5.1+0 1.0 4.2                   MVCO
 SMCO eP      16:57:19.91   1.3   39.4 337 b:3.2+0 .65 4.2                   SMCO
 ISCO eP      16:57:20.01   1.2   39.4 339 b:9.7+0 1.1 4.4                   ISCO
 ECSD eP      16:57:29.18  -0.5   40.8 351 b:8.4+0 .88 4.5                   ECSD
 MSU  eP      16:57:33.28   0.5   41.1 331 b:6.3+0 1.5 4.1                   MSU 
 DAU  eP      16:57:42.32   0.5   42.2 334 b:6.9+0 1.0 4.3                   DAU 
 RSSD eP      16:57:47.02   0.5   42.8 343 b:7.7+0 .95 4.4                   RSSD
 HWUT eP      16:57:50.87   0.2   43.3 334 b:7.8+0 .85 4.5                   HWUT
 BGU  eP      16:57:51.31  -0.2   43.4 333 b:8.2+0 1.0 4.4                   BGU 
 REDW eP      16:57:59.74  -0.3   44.5 337 b:1.4+1 1.1 4.8                   REDW
 LOHW eP      16:58:00.77  -0.1   44.6 337 b:3.8+0 .90 4.3                   LOHW
 RRI2 eP      16:58:01.11  -0.4   44.7 336 b:9.0+0 .93 4.7                   RRI2
 TPAW eP      16:58:02.11   0.9   44.6 337 b:4.9+0 .80 4.5                   TPAW
 IMW  eP      16:58:04.01   0.1   45.0 337 b:3.3+0 .68 4.4                   IMW 
 RLMT eP      16:58:06.90   0.0   45.4 339 b:3.8+0 .83 4.4                   RLMT
 LAO  eP      16:58:09.40  -0.7   45.8 343 b:1.1+1 .90 4.8                   LAO 
 QLMT eP      16:58:11.47  -0.1   45.9 337 b:2.9+0 .58 4.4                   QLMT
 HLID eP      16:58:13.37   0.2   46.2 334 b:1.4+1 .15 5.7X                  HLID
 MCMT eP      16:58:16.87   0.8   46.5 336 b:3.9+0 1.1 4.3                   MCMT
 BOZ  eP      16:58:17.16  -0.3   46.7 338 b:9.2+0 1.1 4.7                   BOZ 
 PLCA eP      16:58:18.00  -0.7   46.9 161 b:7.8+0 1.0 4.7                   PLCA
      e       16:58:21.81  depth =  12.7X
 DLMT eP      16:58:18.74   0.2   46.8 337 b:6.8+0 1.0 4.6                   DLMT
 ULM  eP      16:58:19.45  -0.6   47.1 353 b:7.5+0 1.1 4.7                   ULM 
 LRM  eP      16:58:20.45  -0.8   47.2 337 b:1.6+1 .68 5.2                   LRM 
 TRQA eP      16:58:28.72   1.4   48.0 152 b:5.4+0 1.1 4.5                   TRQA
 CHMT eP      16:58:29.93  -0.7   48.4 337 b:5.0+0 1.0 4.5                   CHMT
 MSO  eP      16:58:32.25   0.3   48.6 337 b:6.1+0 1.0 4.6                   MSO 
 EDM  qP      16:59:10.88   0.5   53.7 342                                   EDM 
 FCC  eP      16:59:21.41  -0.6   55.4 356 b:1.7-1 1.0 3.0X                  FCC 
 DLBC qP      17:00:20.36   0.5   63.7 337                                   DLBC
 RES  eP      17:01:05.72  -1.6   71.3 358 b:8.1+0 1.5 4.6                   RES 
 INK  eP      17:01:08.53  -0.3   71.5 344 b:2.2+0 .80 4.3                   INK 



 Generated 2008 MAY  8 at 20:26 UTC

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


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