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Earthquake Hazards Program
Phase Data

Explanation of Parameters


      9 MAY 2008  (130)

     ot  = 19:39:06.88   +/-   0.44              NORTHERN COLOMBIA               
     lat =       6.596   +/-    3.9
     lon =     -72.862   +/-    4.7              MAGNITUDE 4.6 (GS)       
     dep =       174.0   +/-    4.5   

     65 km (40 miles) SSE of Bucaramanga, Colombia (pop 553,000)
     120 km (75 miles) ESE of Barrancabermeja, Colombia (pop 187,000)
     130 km (80 miles) NNE of Tunja, Colombia (pop 115,000)
     260 km (160 miles) NNE of BOGOTA, Colombia

     nph =   79 of  93    se = 0.65    FE=099                            A   

     error ellipse = (122.7, 37.1,  8.0;255.3, 41.8,  6.5; 11.2, 26.0,  5.3)

 mb = 4.6 ( 70)  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
 ROSC ePn     19:39:48.06   1.1    2.3 220 d:2.5+2     4.8X                  ROSC
      eSn     19:40:14.77  S res =  -3.1X
 SDV  iPnc    19:39:57.84   0.3    3.2  44 d:3.5+2     5.5X L:2.3+0 .75 4.6X SDV 
      eSn     19:40:34.32  S res =  -2.7X  g:1.5+0 .75 4.5X
 BCIP ePn     19:40:45.68  -6.2X   7.4 291 d:1.4+2     6.3X L:1.8-1 .83 4.5X BCIP
      eSn     19:42:07.43  S res =  -7.4X  g:1.8-1 1.0 4.0X b:8.0+1 .88 5.1 
 OTAV ePn     19:41:05.63  -0.7    8.4 222 d:3.7+1     5.5X L:5.6-2 .65 4.2X OTAV
      eSn     19:42:41.70  S res =   1.0X  g:3.5-2 .75 3.5X b:3.2+1 .65 4.9 
 SDDR ePn     19:41:56.88  -0.9   12.4   7 g:5.3-2 1.0 3.8X b:3.0+1 .73 4.8  SDDR
      eSn     19:44:05.84  S res =  -9.8X
 MTDJ ePn     19:41:57.67  -0.4   12.4 339 g:1.3-1 .75 4.4X b:1.3+2 .70 5.5  MTDJ
      eSn     19:44:02.48  S res = -13.6X
 JTS  ePn     19:41:57.87  -1.3   12.5 288 g:2.6-2 1.0 3.5X b:1.4+1 .65 4.5  JTS 
 GRGR ePn     19:42:01.26   4.2X  12.3  63                                   GRGR
 SJG  qPn     19:42:03.01  -4.7X  13.2  29                                   SJG 
      eSn     19:44:27.90  S res =  -6.4X
 GTBY ePn     19:42:11.09   0.4   13.4 351 g:7.0-2 .63 4.2X b:7.0+1 .63 5.2  GTBY
 FDF  ePn     19:42:19.13   0.4   14.1  54 b:1.1+2 1.0 5.2                   FDF 
 PAYG eP      19:43:14.51   0.8   18.8 248 b:4.6+1 .87 4.9                   PAYG
 LPAZ eP      19:43:58.21  -1.1   23.2 168 g:2.3-2 1.0 3.9X b:1.3+1 .73 4.6  LPAZ
      e       19:44:33.16  depth = 179.9X
 LVC  qP      19:44:50.01  -3.3X  29.3 173                                   LVC 
 LRAL eP      19:44:54.64   0.6   29.4 335 g:1.1-2 .90 3.8X b:1.1+1 .90 4.6  LRAL
 VBMS eP      19:45:03.18   0.9   30.3 329                                   VBMS
 TZTN eP      19:45:11.93   0.7   31.4 343 b:9.4+1 .95 5.5                   TZTN
 PLAL eP      19:45:12.78   0.1   31.5 336 b:2.4+1 .79 5.0                   PLAL
 WVT  eP      19:45:20.14  -0.4   32.4 337 b:4.7+1 .90 5.2                   WVT 
 MIAR eP      19:45:30.58  -1.4   33.7 328 b:4.1+0 .73 4.2                   MIAR
 WCI  eP      19:45:32.02  -0.1   33.8 341 b:1.6+1 .60 4.9                   WCI 
 USIN eP      19:45:34.32   0.2   34.0 339 b:6.8+1 .93 5.3                   USIN
 SIUC eP      19:45:37.09  -0.1   34.4 337 b:6.2+1 .95 5.3                   SIUC
 ACSO eP      19:45:39.17  -0.9   34.7 346 b:3.4+1 1.0 5.0                   ACSO
 OLIL eP      19:45:41.53   0.3   34.8 339 b:3.5+1 .85 5.1                   OLIL
 FVM  eP      19:45:43.49   0.1   35.1 335 b:6.2+1 1.0 5.2                   FVM 
 WMOK eP      19:45:56.70  -1.5   36.8 323 b:8.3+0 .67 4.5                   WMOK
 KSU1 eP      19:46:13.54  -1.3   38.8 330 b:2.0+1 .93 4.8                   KSU1
 AMTX eP      19:46:13.90  -0.1   38.7 321 b:1.0+1 .48 4.8                   AMTX
 JFWS eP      19:46:18.27  -0.5   39.3 340 b:7.2+1 .88 5.4                   JFWS
 MNTX eP      19:46:19.08  -0.1   39.3 314 b:8.3+0 .73 4.5                   MNTX
      ePcP    19:48:25.00   0.6X
 SCIA eP      19:46:20.41  -0.4   39.5 336 b:1.9+1 .48 5.0                   SCIA
 COWI eP      19:46:39.45   0.1   41.8 343 b:3.1+1 1.0 4.8                   COWI
 ANMO eP      19:46:39.95  -0.2   41.9 317 b:3.1+0 .85 3.9                   ANMO
 ECSD eP      19:46:43.24  -1.5   42.5 334 b:1.6+1 .93 4.6                   ECSD
 SDCO eP      19:46:49.14   0.6   42.9 321 b:7.8+0 .90 4.3                   SDCO
 EYMN iPd     19:46:58.01  -0.2   44.2 342 b:3.4+1 .55 5.1                   EYMN
 ISCO iPd     19:46:59.96   0.6   44.2 323 b:1.2+1 .98 4.4                   ISCO
 MVCO eP      19:47:01.52   0.2   44.5 318 b:1.7+1 1.3 4.4                   MVCO
 SMCO eP      19:47:03.69   0.7   44.7 322 b:1.4+1 .70 4.6                   SMCO
 WUAZ eP      19:47:10.42   0.7   45.6 315 b:1.9+1 .95 4.6                   WUAZ
 AGMN eP      19:47:11.55  -0.6   45.9 339 b:1.3+1 .53 4.7                   AGMN
 RSSD eP      19:47:15.11   0.0   46.3 329 b:1.3+0 .40 3.8                   RSSD
 ULM  eP      19:47:23.98  -1.0   47.6 340 b:2.2+1 .63 4.9                   ULM 
 MSU  eP      19:47:26.58   0.6   47.6 318 b:1.8+1 1.1 4.5                   MSU 
 DAU  eP      19:47:29.91   0.6   48.1 320 b:2.6+1 1.0 4.7                   DAU 
 SCHQ eP      19:47:31.32   0.6   48.3   5 b:2.0+1 .83 4.7                   SCHQ
 HWUT eP      19:47:35.37  -0.4   48.9 322 b:7.1+0 .73 4.3                   HWUT
 BGU  eP      19:47:39.93   0.1   49.5 320 b:1.5+1 .86 4.6                   BGU 
      e       19:48:17.52  depth = 166.5X
 REDW eP      19:47:40.16  -0.1   49.5 324 b:2.3+1 .98 4.8                   REDW
 DGMT eP      19:47:40.19   0.8   49.5 333 b:5.3+1 .60 5.3                   DGMT
 LOHW eP      19:47:40.56   0.3   49.5 324 b:7.5+0 .63 4.5                   LOHW
 RLMT eP      19:47:41.14  -0.1   49.7 327 b:3.9+0 .63 4.2                   RLMT
 TPAW eP      19:47:41.38   0.1   49.7 324 b:6.4+0 .60 4.4                   TPAW
 HVU  eP      19:47:42.03  -0.1   49.8 321 b:4.1+0 .60 4.2                   HVU 
 RRI2 eP      19:47:42.73   0.4   49.8 324 b:1.5+1 .65 4.8                   RRI2
 IMW  eP      19:47:43.24   0.2   49.9 324 b:5.9+0 .53 4.4                   IMW 
 N13A eP      19:47:45.40   0.2   50.2 319 b:8.9+0 .88 4.4                   N13A
 GCMT eP      19:47:46.65   0.4   50.4 327 b:1.0+1 .88 4.5                   GCMT
 M13A eP      19:47:47.17   0.1   50.4 320 b:1.9+1 1.0 4.7                   M13A
 QLMT eP      19:47:50.65   1.4   50.7 325 b:4.7+0 .76 4.2                   QLMT
 BOZ  eP      19:47:53.52  -0.2   51.3 326 b:6.0+0 .95 4.2                   BOZ 
 DLMT eP      19:47:56.92   0.4   51.7 325 b:1.1+1 1.2 4.4                   DLMT
 HLID eP      19:47:57.36   0.4   51.8 322 b:6.3+0 .80 4.3                   HLID
 LRM  eP      19:47:58.26   0.3   51.9 326 b:2.5+1 .64 5.0                   LRM 
 HRY  eP      19:47:59.82   0.6   52.1 327 b:7.9+0 .50 4.7                   HRY 
 FFC  eP      19:48:07.97  -0.4   53.4 339 b:3.1+0 .45 4.3                   FFC 
 WVOR eP      19:48:12.24   0.0   53.9 319 b:9.1+0 .90 4.5                   WVOR
 JTMT eP      19:48:14.11   0.5   54.1 327 b:6.4+0 .92 4.4                   JTMT
 FCC  eP      19:48:16.27  -0.4   54.5 347 b:6.8-1 1.0 3.3X                  FCC 
 BSMT eP      19:48:16.83   0.7   54.4 326 b:1.0+1 1.1 4.5                   BSMT
 WALA eP      19:48:16.97  -0.8   54.6 328 b:1.0-1 1.0 2.5X                  WALA
 LNOR eP      19:48:23.02   0.3   55.3 323 b:2.3+0 .50 4.2                   LNOR
 NEW  eP      19:48:26.60  -0.2   55.9 326                                   NEW 
 YBH  eP      19:48:28.23  -1.3   56.3 317 b:3.1+0 .53 4.4                   YBH 
 EDM  eP      19:48:33.49  -0.4   56.9 332                                   EDM 
 ETW  eP      19:48:37.81   0.3   57.4 324 b:6.9+0 .68 4.6                   ETW 
 EFI  qP      19:48:50.40  -0.5   59.4 169                                   EFI 
 DLBC eP      19:49:45.57   0.6   67.6 331                                   DLBC
 RES  eP      19:49:54.52   0.2   69.2 354 b:3.4+0 1.0 4.1                   RES 
 SUMG eP      19:49:55.25   0.7   69.2  10 b:3.8+1 1.1 5.1                   SUMG
 INK  iPd     19:50:19.59   0.5   73.3 340 b:2.7+0 .50 4.2                   INK 
 TOA0 qP      19:50:21.47  -0.2   73.5  78                                   TOA0



 Generated 2008 MAY  9 at 20:45 UTC

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


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