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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     18 AUG 2009  (230)

     ot  = 02:50:17.90   +/-   0.26              COLORADO                        
     lat =      40.690   +/-    2.4
     lon =    -107.573   +/-    3.0              MAGNITUDE 3.7 (GS)       
     dep =         5.0  (geophysicist)

     20 km (10 miles) N of Craig, Colorado (pop 9,100)
     65 km (40 miles) WNW of Steamboat Springs, Colorado (pop 9,800)
     80 km (50 miles) NNE of Meeker, Colorado (pop 2,200)
     245 km (150 miles) WNW of DENVER, Colorado
 
     Felt (III) at Craig and (II) at Hayden. Also felt at Hamilton and
     Maybell. Felt at Rawlins, Wyoming.

     nph =   80 of 178    se = 1.15    FE=479                            A   

     error ellipse = ( 77.5,  0.0,  4.0;167.5,  0.0,  3.1;  0.0,  0.0,  0.0)

 mb = 0.0 (  0)  ML = 4.2 ( 32)  mblg = 3.4 ( 23)  md = 3.7 (  1)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 O20A ePg     02:50:29.54  -2.8    0.8 223                                   O20A
      eS      02:50:37.21  S res =  -5.0X
 RWWY ePg     02:50:37.34  -0.4    1.0  15 L:4.6+0 .68 3.7                   RWWY
      eS      02:50:50.07  S res =  -1.1X
 SMCO ePn     02:50:45.07  -1.8    1.6 163 L:5.2+0 .57 4.1  g:1.1+0 .85 4.0  SMCO
      eS      02:51:05.55  S res =  -2.3X
 PHWY ePn     02:50:48.87   0.2    1.7  68 d:2.9+2     3.7  L:6.7-1 .30 3.3  PHWY
      eS      02:51:11.26  S res =   0.1X  g:2.7-1 .63 3.6 
 ISCO ePn     02:50:49.09   0.0    1.7 120 L:1.3+0 .52 3.6  g:6.8-1 1.2 3.7  ISCO
      eSn     02:51:11.54  S res =  -0.3X
 PV04 ePn     02:50:58.88  -0.7    2.5 205                                   PV04
      eS      02:51:31.06  S res =   0.3X
 BW06 ePn     02:50:59.14  -1.0    2.6 325 d:4.1+2     4.3X L:1.1+0 .73 4.0  BW06
      eS      02:51:34.17  S res =  -1.9X  g:7.1-1 .73 4.1 
 PDAR Pn      02:50:59.20  -1.0    2.6 325                                   PDAR
      Pg      02:51:03.65  -3.2X
      Lg      02:51:33.90
 PV10 ePn     02:51:00.68   0.2    2.6 207 L:1.3+1 .34 5.0  g:9.5+0 .72 5.2X PV10
 PV01 ePn     02:51:00.77  -1.0    2.7 197 d:3.1+2     4.0X L:1.8+1 .52 5.2X PV01
                                           g:1.2+1 .74 5.3X
 SRU  ePn     02:51:01.84  -1.2    2.8 236 L:4.4+0 .54 4.7                   SRU 
      eS      02:51:38.06  S res =   1.2X
 DAU  ePn     02:51:05.01   1.1    2.8 266                                   DAU 
      eS      02:51:40.33  S res =   1.9X
 JLU  ePn     02:51:06.02   0.4    3.0 270 L:1.3+0 .48 4.3                   JLU 
      eS      02:51:44.63  S res =  -3.0X
 TMUT ePn     02:51:07.51  -0.5    3.1 245 L:4.2+0 .54 4.9                   TMUT
      eS      02:51:48.19  S res =   2.3X
 HWUT ePn     02:51:07.59  -0.8    3.2 288 d:3.3+2     4.2X L:1.1+0 .83 4.3  HWUT
      eS      02:51:52.74  S res =  -0.5X  g:7.7-1 .83 4.2 
 MPU  ePn     02:51:08.46  -0.2    3.2 259 L:8.0-1 .58 4.1                   MPU 
      eS      02:51:47.08  S res =   0.0X
 Q16A ePn     02:51:09.67  -0.6    3.3 239 d:2.6+2     4.1X                  Q16A
      eS      02:51:54.66  S res =  -2.6X
 CTU  ePn     02:51:09.81   1.1    3.2 271 L:6.4-1 .66 4.0                   CTU 
      eS      02:51:50.31  S res =   3.3X
 NLU  ePn     02:51:13.19  -0.3    3.5 259 L:5.4-1 .51 4.2                   NLU 
      eS      02:51:59.51  S res =   3.9X
 REDW ePn     02:51:13.50  -1.3    3.6 319 L:3.6+0 .63 5.0                   REDW
      ePg     02:51:26.33  -0.9X
      eS      02:52:07.53  S res =   0.7X
 MVCO ePn     02:51:13.99   0.0    3.6 192 L:7.8-1 .98 4.3                   MVCO
      eS      02:52:04.23  S res =  -0.8X
 SNOW ePn     02:51:14.10  -1.1    3.6 321 L:2.0+0 .57 4.8                   SNOW
      ePg     02:51:27.31  -0.4X
      eS      02:52:11.53  S res =  -3.4X
 LOHW ePn     02:51:14.89  -0.9    3.7 323 L:2.6+0 .52 4.9                   LOHW
      eS      02:52:10.40  S res =   1.6X
 TPAW ePn     02:51:15.43  -1.4    3.8 319 L:1.7+0 .63 4.7                   TPAW
      eS      02:52:13.19  S res =   2.3X
 SPUT ePn     02:51:15.46  -1.0    3.7 281 d:2.4+2     4.2X L:2.4-1 .42 3.9  SPUT
      eS      02:52:10.90  S res =   0.6X  g:1.4-1 .68 3.6 
 MOOW ePn     02:51:16.56  -1.6    3.9 323 L:3.2-1 1.0 4.0                   MOOW
      ePg     02:51:30.39  -1.4X
      eS      02:52:14.47  S res =   0.8X
 RRI2 ePn     02:51:16.78  -1.3    3.9 315 L:7.5-1 .63 4.4                   RRI2
      ePg     02:51:30.27  -1.4X
      eS      02:52:05.44  S res =   1.6X
 IMW  ePn     02:51:19.55  -1.4    4.1 323 L:3.3+0 .57 5.1                   IMW 
      ePg     02:51:35.14  -0.6X
      eS      02:52:21.44  S res =   1.8X
 HVU  ePn     02:51:19.76  -1.2    4.1 287 L:9.8-1 .66 4.6                   HVU 
      eS      02:52:18.82  S res =  -0.9X
 DUG  ePn     02:51:21.11   0.7    4.0 265 L:2.6-1 .70 4.0                   DUG 
      eS      02:52:21.94  S res =   3.4X
 MSU  ePn     02:51:22.43   0.1    4.2 240                                   MSU 
      eS      02:52:20.73  S res =  -1.8X
 FLWY ePn     02:51:22.73   1.2    4.1 327 L:9.8-1 1.2 4.6                   FLWY
      eS      02:52:24.87  S res =   4.1X
 OGNE ePn     02:51:22.85   0.0    4.2  85                                   OGNE
      ePg     02:51:37.72  -0.9X
      eS      02:52:28.86  S res =  -4.3X
 KSCO ePn     02:51:23.12   0.9    4.2 112 d:2.3+2     4.2X                  KSCO
      ePg     02:51:36.11  -1.5X
      eS      02:52:27.34  S res =  -4.1X
 H17A ePn     02:51:23.41  -1.0    4.3 330 d:1.7+2     4.0X                  H17A
      eS      02:52:33.22  S res =  -3.3X
 BGU  ePn     02:51:23.56   1.5    4.1 275 L:1.8-1 1.3 3.9                   BGU 
      eS      02:52:16.53  S res =  -5.4X
 RSSD ePn     02:51:24.60   0.2    4.3  36 g:1.9-1 .85 3.7                   RSSD
      ePg     02:51:38.71  -1.8X
      eS      02:52:27.22  S res =   0.5X
 LKWY ePn     02:51:26.32   0.7    4.4 333 d:1.3+2     3.7X L:1.6-1 .70 3.9  LKWY
      eS      02:52:32.67  S res =   3.4X  g:9.3-2 .70 3.5 
 YFT  ePn     02:51:26.37  -0.1    4.5 328 d:1.2+2     3.6X L:1.9-1 .86 4.0  YFT 
      eS      02:52:42.24  S res =   1.0X  g:1.7-1 .96 3.6 
 YMR  ePn     02:51:27.67  -2.0    4.7 329 d:5.0+0     0.6X L:2.4-2 .62 3.2X YMR 
      eS      02:52:44.65  S res =  -4.1X  g:1.4-2 .62 2.8 
 RLMT ePn     02:51:28.29   0.2    4.6 345 d:3.3+2     4.7X L:2.5-1 .73 4.2  RLMT
      ePg     02:51:45.90  -0.1X           g:2.4-1 1.0 3.8 
      eS      02:52:42.56  S res =  -3.1X
 YNR  ePn     02:51:29.23   0.5    4.6 331 d:1.2+2     3.8X L:6.8-2 .96 3.6  YNR 
      eS      02:52:38.79  S res =   3.0X  g:5.7-2 .96 3.2 
 QLMT ePn     02:51:34.46   0.4    5.0 327                                   QLMT
      eS      02:52:51.46  S res =   4.5X
 GCMT ePn     02:51:37.18  -1.0    5.3 344 d:2.5+2     4.7X L:1.7-1 .98 4.1  GCMT
      eS      02:52:57.51  S res =   1.8X  g:1.4-1 .98 3.7  b:2.3+1 .40 5.2X
 ARUT ePn     02:51:39.58   0.4    5.4 239 d:1.7+2     4.3X L:8.0-2 .52 3.8  ARUT
      ePg     02:52:01.33   0.0X           g:6.2-2 .74 3.4  b:3.6+1 .62 5.2X
      eS      02:53:04.18  S res =   6.2X
 CCUT ePn     02:51:40.81   0.3    5.5 237 L:1.0-1 .82 3.9X                  CCUT
      eS      02:53:02.31  S res =   1.8X
 MCMT ePn     02:51:43.75   0.7    5.7 319 d:2.7+2     4.9X L:3.3-2 .96 3.5X MCMT
      ePg     02:52:02.64  -3.9X           g:2.8-2 .96 3.0  b:9.0+0 .52 4.7X
      eS      02:53:14.56  S res =  -5.5X
 ANMO ePn     02:51:44.01  -0.7    5.8 171 L:2.0-2 1.3 3.3X g:1.0-2 .88 2.6  ANMO
      ePg     02:52:03.35  -5.6X
      Lg      02:53:14.85
      eS      02:53:15.18  S res =   5.7X
 BOZ  ePn     02:51:44.19  -0.2    5.8 330 d:6.8+1     3.5X L:1.5-2 .55 3.2X BOZ 
      ePg     02:52:05.59  -2.9X           g:1.6-2 1.0 2.8  b:7.8+0 .55 4.6X
      eS      02:53:14.05  S res =   5.4X
 W18A ePn     02:51:44.43  -0.6    5.8 198                                   W18A
      eS      02:53:12.08  S res =   2.0X
 HLID ePn     02:51:45.09  -0.2    5.8 302                                   HLID
      eS      02:53:19.86  S res =  -5.5X
 WUAZ ePn     02:51:46.58  -0.5    6.0 211 d:3.0+2     5.1X L:2.9-1 .58 4.5X WUAZ
      eS      02:52:59.80  S res =   3.9X  g:1.6-1 .73 3.9  b:1.6+2 .58 5.9X
 DLMT ePn     02:51:47.18   0.5    5.9 323                                   DLMT
      eS      02:53:26.96  S res =  -1.8X
 LENM ePn     02:51:50.30  -4.5X   6.5 176                                   LENM
      ePg     02:52:17.18  -5.8X
 LAZ  ePn     02:51:50.42  -1.0    6.3 177 d:2.5+2     5.0X L:3.2-2 .62 3.6X LAZ 
      ePg     02:52:10.56  -7.8X           g:1.8-2 .62 3.1  b:1.8+1 .62 5.1X
      eS      02:53:28.45  S res =   4.9X
 LRM  ePn     02:51:51.90   1.0    6.2 327                                   LRM 
      ePg     02:52:15.53  -1.9X
      eS      02:53:39.88  S res =   1.5X
 R11A ePn     02:51:56.16   0.1    6.6 252                                   R11A
      eS      02:53:37.84  S res =   4.7X
 BNM  ePn     02:51:57.17   1.8    6.6 173 d:2.2+2     5.0X L:2.4-2 .50 3.5X BNM 
      ePg     02:52:18.41  -5.4X           g:1.7-2 .90 2.9  b:1.2+1 .50 5.1X
      eS      02:53:43.44  S res =  -5.5X
 HRY  ePn     02:51:57.87   0.0    6.8 334                                   HRY 
      eS      02:53:50.45  S res =  -4.5X
 BGNE ePn     02:52:02.50  -0.8    7.2  81                                   BGNE
      eS      02:54:01.68  S res =  -6.0X
 SHPR ePn     02:52:05.21   0.4    7.3 237                                   SHPR
      eS      02:53:57.66  S res =   6.1X
 BRSD ePn     02:52:06.03  -0.3    7.4  57                                   BRSD
      eS      02:54:14.01  S res =  -0.8X
 EGMT ePn     02:52:07.06  -0.9    7.5 349                                   EGMT
      ePg     02:52:35.60  -5.8X
      eS      02:54:15.48  S res =  -3.0X
 AMTX ePn     02:52:08.04   0.9    7.4 139                                   AMTX
      ePg     02:52:35.27  -5.1X
      eSg     02:54:12.72  S res =  -4.0X
 CHMT ePn     02:52:08.53   1.1    7.5 328                                   CHMT
      eS      02:54:16.85  S res =  -0.3X
 MSO  ePn     02:52:11.65   1.3    7.7 325                                   MSO 
 MSTX ePn     02:52:12.91   1.9    7.7 149                                   MSTX
      ePg     02:52:41.50  -4.2X
      eS      02:54:20.71  S res =  -5.0X
 SLMT ePn     02:52:13.64   1.2    7.8 329                                   SLMT
 LDFC ePn     02:52:16.39  -0.9    8.2 229                                   LDFC
      ePg     02:52:47.83  -6.6X
      eS      02:54:31.24  S res =  -9.1X
 SWMT ePn     02:52:19.14   1.1    8.2 328                                   SWMT
      eS      02:54:41.45  S res =  -0.7X
 BMO  ePn     02:52:20.09   1.4    8.3 303 d:2.0+1     3.1X L:2.9-3 .53 2.9X BMO 
      eS      02:54:42.25  S res =  -1.3X  g:2.4-3 .93 2.2X b:1.5+0 .53 4.5X
 ECSD ePn     02:52:22.51  -1.6    8.7  66                                   ECSD
      eS      02:54:50.02  S res =  47.6X
 WVOR ePn     02:52:23.14   1.7    8.5 285 d:1.1+2     4.9X L:1.0-2 .93 3.5X WVOR
      eS      02:54:43.01  S res =  16.7X  g:9.6-3 1.0 2.8  b:8.2+0 .93 5.0X
 YBMT ePn     02:52:23.30   1.2    8.5 329 d:2.8+1     3.5X L:5.9-3 .62 3.2X YBMT
                                           g:3.9-3 .76 2.6  b:3.3+0 .62 4.8X
 JTMT ePn     02:52:23.35   1.1    8.5 328 d:1.2+1     2.7X L:4.7-3 .84 3.1X JTMT
                                           g:4.1-3 .98 2.5  b:3.3+0 .84 4.7X
 NVAR Pn      02:52:26.45   3.3    8.6 258                                   NVAR
      Lg      02:54:41.71
 BSMT ePn     02:52:27.48   1.2    8.8 327                                   BSMT
 NEW  Pn      02:52:45.28   0.5   10.2 321                                   NEW 
      Lg      02:55:31.26
 TXAR Pn      02:53:08.20   1.6   11.8 163                                   TXAR
      Lg      02:56:24.53
 ULM  Pn      02:53:13.95  -3.6X  12.6  37                                   ULM 
      Lg      02:56:47.41
 YKA  P       02:55:12.08  -3.1X  22.2 351                                   YKA 
 ILAR P       02:56:52.10  -1.2   33.0 330                                   ILAR
 MAW  PKPbc   03:10:16.84   2.7  152.5 172                                   MAW 



 Generated 2009 SEP  7 at 02:09 UTC

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


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