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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     22 JUL 2008  (204)

     ot  = 09:32:52.91   +/-   0.34              SOUTHERN IDAHO                  
     lat =      42.888   +/-    3.0
     lon =    -111.193   +/-    5.2              MAGNITUDE 3.1 (GS)       
     dep =         5.0  (geophysicist)

     30 km (15 miles) NW of Afton, Wyoming (pop 1,000)
     65 km (40 miles) N of Montpelier, Idaho (pop 2,700)
     75 km (45 miles) SSW of Jackson, Wyoming (pop 4,000)
     565 km (350 miles) WNW of CHEYENNE, Wyoming
 
     ML 3.1 (GS).

     nph =   45 of  66    se = 1.41    FE=457                            A   

     error ellipse = ( 99.8,  0.0,  6.9;  9.8,  0.0,  3.8;  0.0,  0.0,  0.0)

 mb = 0.0 (  0)  ML = 3.1 ( 31)  mblg = 0.0 (  0)  md = 3.9 ( 11)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 AHID ePg     09:32:55.29  -0.5    0.1 151 d:1.7+2     3.8  L:2.3+1 .63 2.9  AHID
      eSg     09:32:58.82  S res =   1.0X
 RRI2 ePg     09:33:00.40  -1.6    0.5 349 d:2.0+2     4.0  L:2.7+0 .65 2.9  RRI2
      eSg     09:33:09.41  S res =   1.3X
 REDW ePg     09:33:02.28  -1.0    0.5  28 d:2.9+2     4.5  L:4.8+0 .35 3.4  REDW
      eSg     09:33:10.53  S res =   0.3X
 TPAW ePg     09:33:03.15  -1.9    0.6  16 d:2.7+2     4.4  L:1.3+0 .33 2.9  TPAW
      eSg     09:33:12.89  S res =  -0.3X
 SNOW ePg     09:33:04.65  -0.9    0.7  29 d:3.2+2     4.6  L:2.0+0 .50 3.1  SNOW
      eSg     09:33:14.73  S res =   0.6X
 DCID1P       09:33:04.94  -1.6    0.7   0 d:2.3+2     4.2  L:2.7+0 .70 3.3  DCID
 LOHW P       09:33:07.84  -1.3    0.8  31                                   LOHW
 IMW  P       09:33:10.60  -2.0    1.0  10                                   IMW 
 BW06 P       09:33:14.79  -1.3    1.2  95                                   BW06
 HWUT P       09:33:16.52  -1.5    1.3 192                                   HWUT
 HVU  P       09:33:19.87  -2.3    1.6 227 d:1.7+2     3.9  L:5.9-1 .56 3.2  HVU 
 YFT  P       09:33:21.74  -0.1    1.6   9 d:8.3+1     3.0  L:5.2-1 .42 3.1  YFT 
 SPUT P       09:33:23.01  -2.2    1.8 211 d:1.6+2     3.8  L:2.4-1 .50 2.9  SPUT
 YMR  P       09:33:23.99  -0.7    1.8   5 d:1.3+2     3.5  L:7.4-1 .42 3.3  YMR 
 YNR  P       09:33:25.11  -0.6    1.9  11 d:5.5+1     2.5X L:1.6-1 .94 2.7  YNR 
 LKWY P       09:33:26.02   1.5    1.8  19 d:8.5+1     3.0  L:1.3-1 .60 2.6  LKWY
 CTU  P       09:33:31.07   0.3    2.2 191 d:1.1+2     3.3X L:4.2-1 .46 3.4  CTU 
 MCMT P       09:33:31.30  -0.1    2.3 329 d:2.0+2     4.1X L:6.7-2 .40 2.6  MCMT
 JLU  P       09:33:31.59   0.0    2.3 185                                   JLU 
 BGU  P       09:33:31.67  -1.2    2.4 216 d:1.5+2     3.7X L:1.1-1 .40 2.9  BGU 
 NOQ  P       09:33:32.41   0.2    2.3 198 d:1.1+2     3.3X L:2.2-1 .58 3.2  NOQ 
 HLID P       09:33:32.87  -0.8    2.4 287 d:2.1+2     4.1X L:1.7-1 .45 3.1  HLID
 DAU  P       09:33:34.61   0.4    2.5 181                                   DAU 
 M13A P       09:33:35.42  -1.5    2.7 236                                   M13A
 DLMT P       09:33:37.13   0.4    2.7 338                                   DLMT
 RLMT P       09:33:38.01   2.0    2.6  31 d:2.0+2     4.0X L:5.7-2 .78 2.7  RLMT
 BOZ  e       09:33:39.05   0.9    2.8 354                                   BOZ 
 MPU  P       09:33:39.53  -0.2    2.9 187 d:1.7+2     3.8X L:7.6-2 .62 3.0  MPU 
 DUG  P       09:33:40.02  -0.6    3.0 205 d:1.5+2     3.7X L:1.1-1 .63 3.2  DUG 
 N13A P       09:33:40.32  -1.3    3.0 229                                   N13A
 NLU  P       09:33:42.03   0.7    3.0 193 d:8.1+1     2.9X L:8.4-2 .72 3.1  NLU 
 GCMT P       09:33:42.49  -0.2    3.1  20 d:1.9+2     4.0X L:4.1-2 .90 2.9  GCMT
 LRM  P       09:33:44.58   2.3    3.1 343 d:1.7+2     3.8X L:3.1-1 .66 3.7  LRM 
 RWWY P       09:33:44.64   0.7    3.2 111                                   RWWY
 TMUT e       09:33:49.99   0.5    3.6 180                                   TMUT
 ELK  P       09:33:53.51   2.5    3.7 236 d:9.3+1     3.1X L:4.2-2 .65 3.1  ELK 
 SRU  P       09:33:53.85   1.5    3.8 172                                   SRU 
 HRY  P       09:33:55.32   2.4    3.9 353                                   HRY 
 SLMT P       09:33:57.18  -6.7X   4.6 340 d:1.6+2     3.7X L:3.1-2 .88 3.3  SLMT
 CHMT P       09:34:01.40   2.5    4.3 341                                   CHMT
 MSU  P       09:34:01.96   0.9    4.4 190                                   MSU 
 PHWY P       09:34:03.28   0.6    4.6 108 d:1.4+2     3.6X L:7.4-2 .50 3.6  PHWY
 PV04 P       09:34:07.37   1.1    4.8 158                                   PV04
 BMO  P       09:34:08.72   2.3    4.8 296                                   BMO 
 MSO  P       09:34:09.58   9.2X   4.4 335                                   MSO 
 SMCO P       09:34:10.83   3.4X   4.9 138 d:1.9+2     4.0X L:1.0-1 1.0 3.8  SMCO
 PV01 P       09:34:11.03   0.1    5.2 156 d:2.4+2     4.3X L:6.4+0 .68 5.7X PV01
                                           b:1.6+3 .54 6.9X
 LAO  P       09:34:13.05   1.8    5.2  41 b:1.9+1 .68 4.8X                  LAO 
 SWMT e       09:34:13.72   4.6X   5.0 338 d:1.6+2     3.8X L:3.6-2 .64 3.4  SWMT
                                           b:2.0+1 .64 4.9X
 JTMT P       09:34:16.26   3.1X   5.3 337 b:5.0+0 .58 4.4X                  JTMT
 RSSD P       09:34:17.23   3.6X   5.3  74 b:2.0+1 .50 5.0X                  RSSD
 YBMT P       09:34:17.64   4.0X   5.4 339 d:6.8+1     2.7X L:1.8-2 .64 3.2  YBMT
                                           b:1.0+1 .64 4.6X
 ISCO P       09:34:19.24   7.5X   5.2 124 b:1.6+1 .58 4.9X                  ISCO
 BSMT P       09:34:20.26   3.6X   5.6 334 b:5.9+0 .64 4.4X                  BSMT
 EGMT P       09:34:21.29   9.4X   5.2  11 d:1.4+2     3.6X L:2.4-2 .63 3.3  EGMT
                                           b:2.1+1 .98 4.7X
 ARUT P       09:34:23.41   9.5X   5.4 199 d:5.5+1     2.5X L:1.4-2 .62 3.1  ARUT
                                           b:7.9+0 .62 4.5X
 WVOR P       09:34:23.94   8.3X   5.5 268 d:6.3+1     2.6X L:3.2-2 .70 3.5X WVOR
                                           b:1.9+1 .70 4.9X
 MVCO P       09:34:25.84   2.6X   6.0 159 b:1.2+1 .53 4.9X                  MVCO
 LNOR P       09:34:29.76   8.9X   5.9 303 d:3.1+1     1.7X L:6.9-3 .58 2.9X LNOR
                                           b:3.7+0 .58 4.3X
 NEW  P       09:34:36.67   3.4X   6.8 324 d:2.0+1     1.2X L:3.1-3 .53 2.7X NEW 
                                           b:1.6+0 .53 4.3X
 WUAZ P       09:34:44.54   3.3X   7.4 181 b:5.1+0 .65 4.9X                  WUAZ



 Generated 2008 JUL 22 at 09:58 UTC

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


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