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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     15 JUL 2007  (196)

     ot  = 19:30:01.04   +/-   0.51              COLOMBIA                        
     lat =       3.834   +/-    5.3
     lon =     -75.603   +/-    5.0              MAGNITUDE 4.8 (GS)       
     dep =        42.0   +/-    5.2   

     70 km (45 miles) ESE of Tulua, Colombia (pop 161,000)
     80 km (50 miles) S of Armenia, Colombia (pop 303,000)
     80 km (50 miles) SSW of Ibague, Colombia (pop 412,000)
     190 km (115 miles) WSW of BOGOTA, Colombia

     nph =   98 of 103    se = 0.95    FE=103                            A   

     error ellipse = (132.6, 42.6,  9.6; 26.2, 17.0,  7.6;279.9, 42.5,  6.1)

 mb = 4.8 ( 54)  ML = 4.1 (  1)  mblg = 3.8 (  4)  md = 5.0 (  1)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 PRAC iPd     19:30:12.46  -2.3    0.7 101                                   PRAC
      eS      19:30:22.88  S res =  -1.7X
 TOLC P       19:30:12.61  -3.5    0.8  19                                   TOLC
      eS      19:30:23.64  S res =  -3.3X
 MALC iPd     19:30:28.04  -0.7    1.7 276                                   MALC
      eS      19:30:52.08  S res =   2.4X
 ROSC ePnd    19:30:28.91   1.3    1.6  51 d:4.2+2     5.0                   ROSC
      qSn     19:30:49.94  S res =   2.5X
 CHIC eP      19:30:34.69   1.6    2.0  67                                   CHIC
      eS      19:31:02.53  S res =   5.1X
 CRUC eP      19:30:42.75   0.7    2.7 210                                   CRUC
 SOLC eP      19:30:46.82  -1.0    3.1 324                                   SOLC
 OTAV ePn     19:31:08.68   0.6    4.6 219 d:3.6+2     6.0X L:2.2-1 .70 4.1  OTAV
                                           g:2.2-1 1.0 3.7 
 BCIP ePn     19:31:37.94   0.1    6.8 322                                   BCIP
 SDV  ePn     19:31:44.36   2.5    7.0  44 d:3.0+2     6.8X L:1.3-1 .65 4.3X SDV 
                                           g:9.1-2 .75 3.8  b:4.6+1 .50 5.6X
 SDDR eP      19:33:40.29   1.8   15.6  15 g:2.8-2 .98 3.7  b:2.0+1 .73 4.4  SDDR
 LVC  eP      19:35:39.95  -0.3   27.1 166 g:2.1-2 1.1 3.9  b:2.6+1 1.2 4.7  LVC 
 CPCT eP      19:36:29.08   1.1   32.5 346                                   CPCT
 PLAL eP      19:36:33.30   0.4   33.1 341 b:1.2+1 1.2 4.6                   PLAL
 WVT  eP      19:36:41.61   0.2   34.1 342 b:6.0+0 .80 4.6                   WVT 
 USIN eP      19:36:55.35  -0.3   35.7 344 b:5.5+1 1.0 5.4                   USIN
 WCI  eP      19:36:55.62   0.9   35.6 345 b:1.4+1 1.0 4.8                   WCI 
 FVM  eP      19:37:02.84  -0.3   36.6 340 b:2.1+1 1.2 4.9                   FVM 
 BLO  eP      19:37:03.37   0.6   36.5 346 b:2.4+1 .95 5.1                   BLO 
 CCM  eP      19:37:05.29  -0.8   36.9 339 b:1.1+1 1.1 4.7                   CCM 
 WMOK eP      19:37:10.37  -0.8   37.5 328 b:1.2+1 1.0 4.7                   WMOK
 AMTX eP      19:37:24.74  -0.9   39.2 325 b:1.9+1 1.1 4.8                   AMTX
 KSU1 eP      19:37:30.95  -0.5   40.0 334                                   KSU1
 BNM  eP      19:37:47.18   0.7   41.7 320                                   BNM 
 LPM  eP      19:37:48.11   0.8   41.8 320                                   LPM 
 LENM qP      19:37:49.01   0.7   42.0 320                                   LENM
 ANMO eP      19:37:50.23   0.5   42.1 321 b:1.6+1 .93 4.7                   ANMO
 LAZ  eP      19:37:51.28   0.8   42.2 320                                   LAZ 
 TUC  eP      19:38:00.36   0.1   43.5 315 b:9.0+0 1.1 4.4                   TUC 
 SDCO eP      19:38:00.98   0.7   43.4 325 b:1.6+1 1.1 4.7                   SDCO
 ECSD eP      19:38:01.86  -1.5   43.9 338 b:7.3+0 .95 4.4                   ECSD
 ISCO eP      19:38:11.77  -0.5   44.9 327 b:1.2+1 1.2 4.6                   ISCO
 MVCO eP      19:38:12.09   0.5   44.8 322 b:2.4+1 1.4 4.8                   MVCO
 SMCO eP      19:38:15.76   0.8   45.3 325 b:5.9+0 .88 4.5                   SMCO
 PV01 eP      19:38:16.71   0.0   45.5 323                                   PV01
 EYMN eP      19:38:18.37  -2.1   46.0 345 b:1.5+1 1.1 4.8                   EYMN
 WUAZ eP      19:38:18.72   0.7   45.7 318 b:1.9+1 .98 5.0                   WUAZ
 PV10 eP      19:38:20.91   0.7   45.9 323                                   PV10
 RWWY eP      19:38:29.70   0.3   47.1 328 b:1.5+1 .95 4.9                   RWWY
 SRU  eP      19:38:30.86   0.1   47.3 323 b:1.5+1 1.2 4.8                   SRU 
 AGMN eP      19:38:30.95  -1.7   47.6 342 b:1.7+1 1.1 4.9                   AGMN
 RSSD eP      19:38:31.15   0.3   47.3 332 b:1.7+1 .90 5.0                   RSSD
 MSU  eP      19:38:36.58   0.7   47.9 321                                   MSU 
 CCUT eP      19:38:38.12   0.7   48.1 319                                   CCUT
 ARUT eP      19:38:39.65   0.9   48.3 319                                   ARUT
 MPU  eP      19:38:40.54   0.2   48.5 323 b:1.8+1 1.0 5.0                   MPU 
 DAU  eP      19:38:41.21   0.6   48.6 324                                   DAU 
 ULM  eP      19:38:44.43  -1.5   49.3 343 b:1.3+1 1.3 4.8                   ULM 
 DUG  eP      19:38:46.18  -0.4   49.4 322 b:2.3+1 1.2 5.1                   DUG 
 GSC  eP      19:38:46.90   0.8   49.3 315 b:8.5+0 .95 4.8                   GSC 
 SPUT eP      19:38:50.21   0.1   49.8 324                                   SPUT
 TPNV eP      19:38:50.46   0.9   49.7 317 b:4.7+0 .95 4.5                   TPNV
 BGU  eP      19:38:50.47  -0.5   49.9 323                                   BGU 
 REDW eP      19:38:52.96  -0.3   50.2 327 b:3.1+1 1.0 5.3                   REDW
 LOHW eP      19:38:53.48   0.0   50.3 327 b:1.8+1 1.0 5.0                   LOHW
 SNOW eP      19:38:53.65   0.2   50.2 327 b:2.3+1 1.0 5.1                   SNOW
 MOOW eP      19:38:54.41  -0.3   50.4 327 b:1.1+1 .90 4.9                   MOOW
 TPAW eP      19:38:54.53   0.2   50.4 327 b:1.1+1 .83 4.9                   TPAW
 RLMT eP      19:38:55.25  -0.4   50.6 329 b:8.6+0 .95 4.7                   RLMT
 IMW  eP      19:38:55.88  -0.5   50.6 327 b:1.8+1 1.0 5.0                   IMW 
 FLWY eP      19:38:56.71   0.5   50.6 328 b:1.1+1 1.0 4.8                   FLWY
 ELK  eP      19:39:00.33  -0.1   51.2 322 b:2.9+0 .85 4.3                   ELK 
 GCMT eP      19:39:01.13   0.2   51.3 330                                   GCMT
 YMR  eP      19:39:01.38   1.1   51.2 328 b:1.2+1 .68 5.0                   YMR 
 QLMT eP      19:39:03.80   0.9   51.5 328                                   QLMT
 MTUM eP      19:39:04.06   0.9   51.5 316                                   MTUM
 BOZ  eP      19:39:07.47  -0.2   52.2 329 b:1.1+1 1.0 4.8                   BOZ 
 HLID eP      19:39:08.63  -0.5   52.4 325 b:1.0+1 .95 4.8                   HLID
 MCMT eP      19:39:08.82   0.2   52.3 327                                   MCMT
 DLMT eP      19:39:10.36   0.3   52.5 328 b:1.2+1 1.2 4.8                   DLMT
 PAHR eP      19:39:16.02   0.1   53.3 318 b:1.0+1 .88 4.8                   PAHR
 MSO  eP      19:39:22.05  -0.2   54.1 328 b:5.4+0 1.1 4.5                   MSO 
 OHCM eP      19:39:25.47   0.7   54.5 317                                   OHCM
 LNOR eP      19:39:35.25   0.2   55.9 325                                   LNOR
 KCPM eP      19:39:36.98   0.5   56.1 316                                   KCPM
 KIPM eP      19:39:37.01   0.6   56.1 316                                   KIPM
 YBH  eP      19:39:37.84  -1.2   56.5 319 b:4.2+0 .85 4.5                   YBH 
 NEW  eP      19:39:39.82  -0.8   56.7 328 b:7.6+0 1.0 4.7                   NEW 
 RSW  eP      19:39:42.84   0.3   57.0 325                                   RSW 
 OD2  eP      19:39:43.24   0.2   57.1 326                                   OD2 
 HOOD eP      19:39:48.22   1.2   57.6 323 b:5.8+1 1.1 5.5                   HOOD
 ETW  eP      19:39:50.15  -0.2   58.1 326                                   ETW 
 LON  eP      19:39:52.92   0.0   58.5 324 b:9.6+0 .90 4.9                   LON 
 JCW  eP      19:39:57.57  -1.1   59.3 326                                   JCW 
 GNW  eP      19:39:59.59  -0.2   59.5 325 b:9.3+0 .84 4.9                   GNW 
 NLWA eP      19:40:04.27   0.8   60.0 324 b:2.1+1 1.1 5.2                   NLWA
 DLBC eP      19:40:59.88  -0.9   68.8 333                                   DLBC
 SUMG eP      19:41:22.14  -0.6   72.4  11 b:1.9+0 .65 4.2                   SUMG
 INK  eP      19:41:36.72  -1.0   75.0 341 b:6.6+2 1.3 6.4X                  INK 
 EGAK eP      19:41:45.20   0.0   76.3 336 b:1.2+1 .88 4.9                   EGAK
 BMRM eP      19:41:47.00   0.1   76.6 332                                   BMRM
 COLA eP      19:41:59.32  -1.2   79.1 336 b:5.5+0 .80 4.6                   COLA
 TRF  eP      19:42:03.30  -1.4   79.8 334 b:5.0+0 .80 4.5                   TRF 
 PPLA eP      19:42:07.44  -1.2   80.5 333                                   PPLA
 TAM  eP      19:42:08.52  -0.2   80.4  68                                   TAM 
 IMA2 eP      19:42:13.43  -1.4   81.7 336                                   IMA2
 SVW2 eP      19:42:13.81  -1.7   81.8 331                                   SVW2
 ECH  qP      19:42:20.07   1.5   82.3  42                                   ECH 



 Generated 2007 JUL 15 at 22:20 UTC

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

 


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