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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     21 JUL 2007  (202)

     ot  = 18:58:14.07   +/-   0.28              ECUADOR                         
     lat =      -1.512   +/-    4.7
     lon =     -77.910   +/-    4.6              MAGNITUDE 4.9 (GS)       
     dep =       167.6  (depth phases)

     80 km (50 miles) ENE of Riobamba, Ecuador (pop 124,000)
     85 km (50 miles) ESE of Ambato, Ecuador (pop 154,000)
     155 km (100 miles) SSE of QUITO, Ecuador (pop 1,399,000)
     195 km (120 miles) NE of Cuenca, Ecuador

     nph =  131 of 239    se = 0.79    FE=107                            A   

     error ellipse = (221.7,  0.0,  6.6;131.7,  0.0,  5.4;  0.0,  0.0,  0.0)

 mb = 4.9 ( 71)  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
 OTAV ePnd    18:58:47.46  -1.4    1.8 343                                   OTAV
 ROSC ePn     18:59:58.44   0.3    7.3  29                                   ROSC
 BCIP ePn     19:00:44.36   0.3   10.8 350                                   BCIP
      eSn     19:02:40.43  S res =  -3.3X
 PAYG qP      19:01:01.62  -3.5X  12.4 274 g:5.0-2 1.1 3.8X b:1.8+2 1.6 5.3  PAYG
      e       19:01:08.93  -1.4X
 SDV  ePn     19:01:08.23   0.1   12.6  35                                   SDV 
 LPAZ eP      19:02:08.34   0.3   17.6 147 g:8.5-2 .85 4.4X b:6.9+1 .63 5.2  LPAZ
      eS      19:05:22.24  S res =  -0.1X
 TGUH eP      19:02:14.59   2.0   18.0 329 b:6.3+1 1.2 4.9                   TGUH
 GRGR eP      19:02:43.26  -1.1   21.0  50 g:2.1-1 .90 4.9X b:2.1+2 .90 5.6  GRGR
      e       19:02:55.90  depth =  53.8X
 AOPR eP      19:03:01.41   0.8   22.6  29                                   AOPR
 LVC  eP      19:03:02.47   0.3   22.7 158                                   LVC 
 HUMP eP      19:03:03.01  -0.1   22.9  31                                   HUMP
 GOGA eP      19:04:51.42  -0.2   35.1 352 b:9.6+0 .81 4.5                   GOGA
 SWET eP      19:05:09.18  -0.9   37.3 349                                   SWET
      epP     19:05:43.24  depth = 153.3X
 CPCT eP      19:05:09.50  -0.4   37.3 351                                   CPCT
      epP     19:05:45.56  depth = 163.5 
 PLAL eP      19:05:10.03  -1.9   37.5 346 b:5.0+1 1.8 4.9                   PLAL
      epP     19:05:45.09  depth = 161.0 
 JCT  ePd     19:05:16.61   0.2   38.0 329                                   JCT 
      epP     19:05:52.33  depth = 164.2 
      ePcP    19:07:27.35  -1.0X
 TZTN eP      19:05:17.41  -0.4   38.2 353 b:6.7+0 .70 4.4                   TZTN
      epP     19:05:53.42  depth = 165.7 
 UALR eP      19:05:19.24  -1.3   38.6 341 b:2.9+1 1.3 4.8                   UALR
      epP     19:05:54.97  depth = 164.0 
 PARMOeP      19:05:27.82  -0.9   39.5 345                                   PARM
 PLCA eP      19:05:29.10  -0.2   39.6 171 b:8.1+1 .83 5.4                   PLCA
      epP     19:06:02.69  depth = 152.3X
      ePcP    19:07:33.02  -0.1X
 SIUC eP      19:05:35.00  -0.8   40.4 346 b:3.2+1 .70 5.1                   SIUC
 WMOK eP      19:05:41.00   0.0   41.0 333                                   WMOK
      epP     19:06:18.72  depth = 172.9 
      eScP    19:11:11.03  -0.8X
 CCM  eP      19:05:41.06  -1.7   41.3 344                                   CCM 
      epP     19:06:18.55  depth = 171.6 
 BLO  eP      19:05:41.83  -0.9   41.3 350 b:1.9+1 .60 4.9                   BLO 
 MVL  eP      19:05:44.96   1.6   41.3   2 b:3.3+1 .90 4.9                   MVL 
      epP     19:06:21.17  depth = 164.8 
 ACSO eP      19:05:46.74  -0.5   41.8 354                                   ACSO
 GDL2 eP      19:05:48.94   1.0   41.9 326                                   GDL2
      epP     19:06:26.90  depth = 173.7 
 AMTX eP      19:05:53.38   0.3   42.5 331                                   AMTX
      epP     19:06:27.79  depth = 155.1X
 HDIL eP      19:05:56.33  -1.6   43.1 347 b:5.3+1 .60 5.3                   HDIL
 BINY iPc     19:06:02.18   1.0   43.5   2 b:4.0+1 .80 5.1                   BINY
 WES  eP      19:06:06.70   1.1   44.1   7 b:3.5+1 .94 4.9                   WES 
 BNM  eP      19:06:10.44   0.7   44.6 325                                   BNM 
      epP     19:06:48.29  depth = 171.6 
 LENM eP      19:06:10.50  -0.9   44.8 325                                   LENM
      epP     19:06:47.41  depth = 166.7 
 LPM  eP      19:06:11.46   0.8   44.7 326                                   LPM 
      epP     19:06:49.27  depth = 171.4 
 ACCN eP      19:06:13.60   2.0   44.9   4 b:3.9+1 1.1 4.9                   ACCN
 LAZ  eP      19:06:14.16   0.7   45.0 325                                   LAZ 
      epP     19:06:51.97  depth = 171.1 
 ANMO iPd     19:06:14.25   0.6   45.1 326                                   ANMO
      epPc    19:06:51.83  depth = 169.9 
 JFWS iPc     19:06:15.87  -1.6   45.6 347 b:3.0+1 .60 5.0                   JFWS
      epP     19:06:52.20  depth = 163.1 
 NCB  eP      19:06:16.35   0.4   45.4   4 b:1.8+1 .89 4.6                   NCB 
      epP     19:06:52.48  depth = 162.3 
 MDV  eP      19:06:17.14   0.5   45.5   5                                   MDV 
 TUC  eP      19:06:19.52   0.1   45.8 320 b:1.4+1 .72 4.6                   TUC 
      epP     19:06:58.06  depth = 174.3 
 LBNH eP      19:06:21.27   1.8   45.9   6 b:6.0+1 1.3 5.0                   LBNH
 LONY iPc     19:06:21.30   0.5   46.0   3 b:4.3+1 1.1 4.9                   LONY
 FRNY iPc     19:06:23.89   1.0   46.3   4 b:3.6+1 .90 4.9                   FRNY
      epP     19:06:55.26  depth = 138.0X
 SDCO iPd     19:06:26.85   0.7   46.7 330 b:4.3+1 1.0 4.9                   SDCO
      epP     19:07:04.54  depth = 169.3 
 EMMW eP      19:06:29.76   1.8   47.0  10                                   EMMW
 COWI eP      19:06:38.29  -1.1   48.4 350 b:6.8+0 .60 4.5                   COWI
      epP     19:07:15.59  depth = 165.8 
 ISCO eP      19:06:38.45  -0.5   48.3 331 b:3.7+0 .54 4.2                   ISCO
 WUAZ iPd     19:06:39.45   0.7   48.3 323 b:5.3+1 1.1 5.1                   WUAZ
      epP     19:07:17.52  depth = 169.9 
 SMCO ePd     19:06:40.33  -0.1   48.5 330 b:1.6+1 1.2 4.5                   SMCO
      epP     19:07:18.55  depth = 170.5 
 PV01 eP      19:06:40.44  -0.3   48.5 328                                   PV01
      epP     19:07:19.19  depth = 173.0 
 GLA  eP      19:06:43.27  -0.2   48.9 318 b:3.2+1 1.2 4.8                   GLA 
      epP     19:07:21.25  depth = 168.9 
 PV10 eP      19:06:43.43  -0.5   49.0 327                                   PV10
      epP     19:07:21.74  depth = 170.6X
 PHWY eP      19:06:47.60   0.3   49.4 333                                   PHWY
      epP     19:07:25.40  depth = 167.7 
 BAR  eP      19:06:51.22  -0.1   50.0 316 b:1.1+1 .83 4.5                   BAR 
      epP     19:07:29.74  depth = 170.9 
 SRU  eP      19:06:54.07   0.1   50.3 327 b:2.5+1 1.3 4.7                   SRU 
      epP     19:07:32.14  depth = 168.4 
 EYMN eP      19:06:54.27  -1.9   50.7 348 b:1.0+1 .57 4.7                   EYMN
 LDFC eP      19:06:55.10   0.8   50.4 320 b:4.7+1 1.1 5.0                   LDFC
      epP     19:07:34.47  depth = 174.8 
 RWWY eP      19:06:55.98   0.3   50.5 332 b:1.3+1 .68 4.7                   RWWY
      epP     19:07:34.16  depth = 168.8 
 MSU  eP      19:06:57.95   0.2   50.8 325                                   MSU 
      epP     19:07:36.74  depth = 171.6 
      ePcP    19:08:12.99   0.8X
 CCUT eP      19:06:58.91   0.8   50.9 324                                   CCUT
      epP     19:07:37.34  depth = 169.8 
      ePcP    19:08:12.74   0.3X
 ARUT P       19:06:59.62   0.1   51.1 324                                   ARUT
      epP     19:07:38.68  depth = 172.8 
 RSSD eP      19:06:59.93   0.3   51.1 336 b:4.0+1 1.3 4.9                   RSSD
      epP     19:07:38.45  depth = 170.1 
 NLU  eP      19:07:04.06  -0.7   51.8 327                                   NLU 
 DAU  eP      19:07:04.25   0.3   51.6 328                                   DAU 
      epP     19:07:43.02  depth = 170.9 
 GSC  eP      19:07:04.32   0.9   51.6 319 b:4.1+1 1.3 5.0                   GSC 
      epP     19:07:42.44  depth = 167.8 
 MWC  eP      19:07:05.88   0.7   51.8 317 b:1.9+1 .62 5.0                   MWC 
      epP     19:07:43.45  depth = 164.9 
 JLU  eP      19:07:06.17   0.5   51.9 328                                   JLU 
      epP     19:07:44.46  depth = 168.5 
 TPNV eP      19:07:09.36   1.1   52.2 321 b:2.0+1 .90 4.8                   TPNV
      epP     19:07:48.00  depth = 169.9 
 DUG  eP      19:07:09.46   0.6   52.3 326 b:4.1+1 1.3 5.0                   DUG 
      epP     19:07:48.21  depth = 170.4 
 SPUT eP      19:07:13.36   0.2   52.9 328                                   SPUT
      epP     19:07:52.11  depth = 170.2 
 ISA  eP      19:07:13.40   0.3   52.9 318 b:2.7+1 1.2 4.9                   ISA 
 BGU  eP      19:07:13.74   0.2   53.0 327                                   BGU 
      epP     19:07:52.53  depth = 170.3 
 REDW eP      19:07:15.75  -2.3   53.6 330 b:4.0+1 1.7 5.3                   REDW
      epP     19:07:54.77  depth = 171.0 
 HVU  eP      19:07:16.78   0.0   53.4 328 b:1.4+1 1.1 4.6                   HVU 
      epP     19:07:55.80  depth = 171.1 
 LOHW eP      19:07:18.16  -0.3   53.6 331 b:4.1+1 1.5 5.0                   LOHW
      epP     19:07:56.24  depth = 166.4 
 TPH  eP      19:07:18.25   0.4   53.5 322 b:2.7+1 1.2 4.9                   TPH 
      epP     19:07:56.96  depth = 169.6 
 TPAW eP      19:07:18.62  -0.5   53.7 331 b:5.3+1 1.7 5.0                   TPAW
      epP     19:07:57.39  depth = 169.8 
 MOOW eP      19:07:19.05  -0.6   53.8 331 b:2.9+1 1.6 4.8                   MOOW
      epP     19:07:57.14  depth = 166.4 
 RRI2 eP      19:07:20.00   0.3   53.8 330 b:2.9+1 1.1 4.9                   RRI2
      epP     19:07:58.39  depth = 167.8 
 IMW  eP      19:07:20.96  -0.3   54.0 331 b:3.1+1 1.4 4.9                   IMW 
 MTUM eP      19:07:20.97   0.1   53.9 320                                   MTUM
      epP     19:08:00.66  depth = 174.1 
 RLMT eP      19:07:21.20  -0.6   54.1 333 b:5.1+0 .56 4.5                   RLMT
      epP     19:07:59.96  depth = 169.4 
 FLWY eP      19:07:21.53   0.2   54.0 331 b:1.1+1 .60 4.8                   FLWY
      epP     19:08:00.49  depth = 170.4 
 ELK  eP      19:07:21.84   0.2   54.1 325 b:1.1+1 1.0 4.5                   ELK 
      epP     19:07:59.73  depth = 165.2 
 GCMT eP      19:07:26.72  -0.3   54.8 333                                   GCMT
      epP     19:08:05.03  depth = 166.8 
 BMN  eP      19:07:28.40   0.0   55.0 324 b:1.8+1 1.0 4.8                   BMN 
      epP     19:08:07.94  depth = 172.6 
 QLMT eP      19:07:28.41   0.6   54.9 331                                   QLMT
      epP     19:08:07.24  depth = 169.2 
 WAKR eP      19:07:30.55   0.8   55.2 321                                   WAKR
      epP     19:08:09.76  depth = 170.9 
 CMB  eP      19:07:31.27  -0.7   55.5 320                                   CMB 
 HLID eP      19:07:32.22   0.2   55.5 328                                   HLID
      epP     19:08:09.75  depth = 162.5 
 BOZ  eP      19:07:32.95   0.2   55.6 332 b:1.8+1 1.1 4.8                   BOZ 
      epP     19:08:10.93  depth = 164.6 
 MCMT eP      19:07:33.14   0.4   55.6 330                                   MCMT
 PAHR eP      19:07:34.36  -0.2   55.9 322 b:3.0+1 1.3 5.0                   PAHR
      epP     19:08:14.08  depth = 172.9 
 DLMT eP      19:07:34.53   0.0   55.9 331 b:3.7+1 1.6 5.0                   DLMT
      epP     19:08:13.18  depth = 167.7 
 LRM  eP      19:07:37.00   0.5   56.1 331                                   LRM 
      epP     19:08:15.63  depth = 167.4 
 SCHQ eP      19:07:40.83  -0.5   56.9   8 b:1.9+1 1.0 4.9                   SCHQ
 OHCM eP      19:07:42.02  -0.1   57.0 320                                   OHCM
      epP     19:08:21.94  depth = 173.0 
 MSO  eP      19:07:47.15   0.7   57.6 331 b:1.9+1 1.3 4.8                   MSO 
      epP     19:08:25.87  depth = 166.7 
 MOD  eP      19:07:47.29  -0.4   57.7 323 b:2.1+1 1.1 4.9                   MOD 
      e       19:08:26.34  depth = 168.1X
 BMO  eP      19:07:48.42  -0.4   57.9 328 b:3.8+1 2.1 4.9                   BMO 
      epP     19:08:27.25  depth = 167.0 
 WDC  eP      19:07:50.03  -1.7   58.3 321 b:1.0+1 .55 4.9                   WDC 
 KIPM eP      19:07:53.56   0.5   58.5 320                                   KIPM
      epP     19:08:32.58  depth = 167.4 
 YBH  eP      19:07:56.46  -0.6   59.1 322 b:1.3+1 .95 4.8                   YBH 
 LNOR eP      19:07:56.96   0.0   59.1 328                                   LNOR
      epP     19:08:35.98  depth = 167.1 
 WALA eP      19:07:57.51   0.0   59.2 333                                   WALA
 KHMM eP      19:07:59.18   1.0   59.3 321                                   KHMM
      epP     19:08:38.49  depth = 168.4 
 NEW  eP      19:08:03.47  -0.4   60.1 331 b:1.8+1 1.2 4.8                   NEW 
      epP     19:08:42.58  depth = 166.9 
 HAWA eP      19:08:03.56  -0.2   60.1 328 b:1.0+1 .55 4.9                   HAWA
      epP     19:08:42.71  depth = 167.1 
 RSW  eP      19:08:04.16   0.1   60.1 328                                   RSW 
      epP     19:08:41.85  depth = 160.1 
 OD2  eP      19:08:05.66   0.4   60.3 329                                   OD2 
      epP     19:08:44.54  depth = 165.7 
 HOOD eP      19:08:07.78   0.5   60.6 326 b:3.2+1 .90 5.2                   HOOD
      epP     19:08:45.85  depth = 161.7 
 ETW  eP      19:08:12.45   0.4   61.3 329                                   ETW 
      epP     19:08:50.97  depth = 163.4 
 LON  eP      19:08:13.18  -0.4   61.6 327 b:1.2+1 1.0 4.7                   LON 
      epP     19:08:52.47  depth = 166.9 
 EDM  eP      19:08:15.80  -0.9   62.0 337                                   EDM 
      epP     19:08:53.68  depth = 160.0 
 JCW  eP      19:08:19.09  -0.8   62.5 328                                   JCW 
      epP     19:08:56.60  depth = 158.2 
 RPW  eP      19:08:19.19  -0.4   62.5 329                                   RPW 
      epP     19:08:57.09  depth = 159.9 
 GNW  iPd     19:08:20.24  -0.2   62.6 327 b:2.6+1 1.2 5.0                   GNW 
      epP     19:08:57.82  depth = 158.5 
 NLWA ePd     19:08:24.38   0.8   63.1 327 b:4.2+1 1.1 5.2                   NLWA
      epP     19:09:02.74  depth = 161.9 
      esP     19:09:21.28   0.1X
 DLBC eP      19:09:23.17   0.7   72.5 334                                   DLBC
      epP     19:10:04.05  depth = 168.7 
 DBIC iPd     19:09:28.41   0.2   73.4  83 b:1.1+2 .93 5.6                   DBIC
      epP     19:10:06.45  depth = 155.3X
 ESLA eP      19:09:57.63  -0.2   78.7  49 b:1.6+0 1.5 4.2                   ESLA
      epP     19:10:38.07  depth = 164.0 
 DAWY eP      19:09:59.99  -0.6   79.3 337                                   DAWY
      epP     19:10:39.76  depth = 160.8 
 INK  eP      19:10:01.25   0.6   79.3 342 b:1.2+3 1.1 6.6X                  INK 
      epP     19:10:41.53  depth = 163.1 
 EGAK eP      19:10:05.70  -0.2   80.3 337 b:2.6+1 .93 4.9                   EGAK
      epP     19:10:46.15  depth = 163.4 
 TOA0 eP      19:10:06.26  -0.8   80.2  76                                   TOA0
      epP     19:10:44.71  depth = 154.6X
 IMA2 eP      19:10:32.94  -0.6   85.6 337                                   IMA2
      epP     19:11:13.16  depth = 160.1 
 TTA  eP      19:10:33.81  -1.3   85.9 333 b:9.8+0 1.4 4.4                   TTA 
      epP     19:11:16.06  depth = 169.0 
 GRFO eP      19:10:57.67   0.4   90.6  40 b:1.4+1 .95 5.0                   GRFO
 GEC2 eP      19:11:04.99   0.1   92.2  41                                   GEC2
 LSA  ePKPdf  19:17:41.16   0.0  150.1  19                                   LSA 
      ePKPbc  19:17:46.89   0.6X
      epPKPdf 19:18:23.71  -1.6X
 MBWA ePKPdf  19:17:42.52  -0.6  151.6 217                                   MBWA
      ePKPbc  19:17:47.94  -1.5X
      ePKPab  19:17:57.61  -0.9X



 Generated 2007 JUL 24 at 18:18 UTC

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

 


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