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Earthquake Hazards Program
Phase Data

Explanation of Parameters


      8 MAY 2007  (128)

     ot  = 15:46:49.11   +/-   0.00         WESTERN MONTANA                 
     lat =      45.394   +/-    0.0
     lon =    -112.130   +/-    0.0              MAGNITUDE 4.7 (BUT)      
     dep =        13.5   +/-    0.0   

     45 km (30 miles) ENE of Dillon, Montana (pop 3,700)
     75 km (45 miles) SSE of Butte, Montana (pop 33,000)
     90 km (55 miles) WSW of Bozeman, Montana (pop 27,000)
     135 km (85 miles) S of HELENA, Montana (pop 25,000)
 
     MD 4.7 (BUT). Felt (V) at Sheridan, Twin Bridges and Virginia
     City; (IV) at Dillon and Norris; (III) at Butte, Clancy, Ennis,
     Hamilton, Helena and Missoula. Also felt (III) at Salmon, Idaho.
     Felt widely in much of southwestern Montana.

     nph =  106 of 162    se = 0.00    FE=456                            held

     error ellipse = (  0.0,  0.0,  0.0;  0.0,  0.0,  0.0;  0.0,  0.0,  0.0)

 mb = 4.8 ( 29)  ML = 4.5 ( 26)  mblg = 4.2 ( 67)  md = 4.4 (  4)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 DLMT ePg     15:46:55.30  -0.6    0.3 265                                   DLMT
      eSg     15:46:59.33  S res =  -1.2X
 BOZ  ePg     15:46:56.55  -1.2    0.4  54                                   BOZ 
      eSg     15:47:02.37  S res =  -1.3X
 QLMT ePg     15:47:02.93  -0.8    0.8 138                                   QLMT
 MCMT ePg     15:47:03.29  -0.6    0.8 222                                   MCMT
 YMR  ePg     15:47:09.54  -0.8    1.1 131 L:2.9+1 .52 4.5  g:2.1+1 .86 5.2X YMR 
      eSg     15:47:26.76  S res =   2.1X
 YNR  ePg     15:47:11.98  -0.9    1.2 123                                   YNR 
      eSg     15:47:25.95  S res =  -3.0X
 HRY  ePg     15:47:13.52  -1.3    1.3   9                                   HRY 
 YFT  ePn     15:47:13.64   0.3    1.3 135 d:3.4+2     3.7                   YFT 
      eSg     15:47:30.37  S res =  -1.3X
 LKWY ePn     15:47:17.00   1.4    1.5 123 L:5.6+0 .68 4.1  g:3.3+0 .68 4.6  LKWY
 CHMT ePn     15:47:18.98   0.2    1.7 333                                   CHMT
 IMW  ePn     15:47:19.00   0.0    1.7 150 d:5.7+2     4.3  L:8.8+0 .43 4.4  IMW 
      eSn     15:47:41.69  S res =   0.8X  g:3.3+0 .70 4.6 
 FLWY ePn     15:47:19.65   1.6    1.7 142 L:1.2+1 .60 4.5  g:7.2+0 .95 4.8  FLWY
      eSn     15:47:43.20  S res =   3.9X
 GCMT ePn     15:47:20.03   0.5    1.8  76                                   GCMT
 MSO  ePn     15:47:21.68   0.3    1.9 319 d:5.6+2     4.4  L:2.2+1 .93 4.9  MSO 
      eSn     15:47:47.05  S res =   1.7X  g:1.7+1 .93 5.3X
 MOOW ePn     15:47:23.26   1.6    1.9 148 d:5.5+2     4.4  L:5.9+0 .95 4.4  MOOW
      eSn     15:47:47.70  S res =   2.0X  g:4.9+0 .95 4.7 
 DCID1ePn     15:47:23.81   2.2    1.9 159                                   DCID
      eSn     15:47:49.47  S res =   3.7X
 RLMT ePn     15:47:24.35   1.3    2.0  97 L:9.2+0 .43 4.6  g:5.1+0 .63 4.9  RLMT
      eSn     15:47:51.11  S res =   2.8X
 TPAW ePn     15:47:25.46   1.5    2.1 156 d:5.3+2     4.4X L:5.3+0 .58 4.4  TPAW
      eSn     15:47:52.41  S res =   2.6X  g:4.6+0 .93 4.7 
 LOHW ePn     15:47:26.16   2.2    2.1 148 d:2.6+2     3.7X L:4.7+0 .85 4.3  LOHW
      eSn     15:47:49.70  S res =  -0.2X  g:3.4+0 .85 4.6 
 SNOW ePn     15:47:27.52   2.4    2.2 152 d:3.4+2     4.0X L:4.0+0 .50 4.3  SNOW
      eSn     15:47:56.94  S res =   5.0X  g:3.4+0 .90 4.6 
 REDW ePn     15:47:27.85   2.0    2.2 155 d:5.2+2     4.4X L:4.1+0 .88 4.4  REDW
      eSn     15:47:54.33  S res =   1.0X  g:3.1+0 .88 4.6 
 AHID ePn     15:47:36.89   4.1    2.7 164 d:2.5+2     3.8X L:2.1+0 .50 4.4  AHID
      eSn     15:48:13.45  S res =   7.7X  g:1.7+0 1.0 4.3 
 EGMT ePn     15:47:38.54   0.9    3.1  31 L:9.2+0 .70 5.2  g:5.5+0 .70 5.1  EGMT
      eSn     15:48:15.65  S res =   1.1X
 BW06 ePn     15:47:43.39   3.9    3.2 144 L:4.8-1 .80 4.0  g:3.5-1 .88 3.8  BW06
      eSn     15:48:21.17  S res =   3.5X
 BMO  ePn     15:47:46.19   0.2    3.7 263 d:5.9+2     5.0X L:2.1+0 .60 4.8  BMO 
      eS      15:48:41.41  S res =   2.2X  g:2.6+0 1.1 4.6 
 HVU  ePn     15:47:47.17   1.9    3.6 188 d:4.2+2     4.7X L:2.7+0 .72 4.9  HVU 
      eSn     15:48:41.03  S res =  12.9X  g:2.3+0 .96 4.6 
 WALA ePn     15:47:49.11   0.9    3.9 342 L:4.5+0 .45 5.2  g:3.1+0 .95 4.8  WALA
      eSg     15:48:49.60  S res =  -3.5X
 HWUT ePn     15:47:49.98   2.4    3.8 174 d:5.1+2     4.9X L:7.6-1 .80 4.4  HWUT
                                           g:5.1-1 .80 4.1 
 LAO  ePn     15:47:54.55   0.2    4.3  70 d:2.5+2     4.3X L:3.9+0 .70 5.3  LAO 
      eSn     15:48:49.85  S res =   5.3X  g:2.6+0 .80 4.9 
      eSg     15:49:05.74  S res =  -1.8X
 SPUT ePn     15:47:56.26   4.8    4.1 183 d:3.1+2     4.5X                  SPUT
 NEW  ePn     15:47:56.74   0.2    4.5 312 d:4.8+2     5.1X L:5.1+0 .75 5.4  NEW 
      ePg     15:48:11.88  -2.8X           g:5.0+0 .98 5.1 
      eSg     15:49:07.04  S res =  -5.5X
 BGU  ePn     15:47:58.54   1.3    4.5 189                                   BGU 
      eSg     15:49:06.46  S res =  -7.6X
 CTU  ePn     15:48:03.99   4.1    4.7 176 d:2.8+2     4.6X L:3.2-1 .72 4.3  CTU 
      eSg     15:49:20.12  S res =  -0.1X  g:3.0-1 .94 3.9 
 NOQ  ePn     15:48:04.13   3.8    4.7 180 d:2.0+2     4.3X L:3.8-1 .60 4.4  NOQ 
                                           g:3.1-1 .82 4.0 
 JLU  ePn     15:48:06.36   4.9    4.8 174 d:3.1+2     4.7X                  JLU 
      eSg     15:49:18.73  S res =  -5.0X
 HAWA ePn     15:48:08.28   0.9    5.3 284 d:4.2+2     5.2X L:2.1+0 .73 5.2  HAWA
      eSg     15:49:36.14  S res =  -1.8X  g:1.5+0 .85 4.7  b:2.1+2 .40 6.1X
 DAU  ePn     15:48:09.23   4.9    5.0 172 d:4.2+2     5.1X                  DAU 
      ePg     15:48:22.37  -2.9X
      eSg     15:49:32.03  S res =   1.8X
 RWWY ePn     15:48:10.89   4.8X   5.1 134 d:4.7+2     5.3X L:6.4-1 .85 4.7  RWWY
                                           g:4.6-1 .85 4.2  b:1.9+2 .53 5.9X
 DUG  ePn     15:48:12.42   5.5X   5.2 186 d:3.0+2     4.8X L:4.1-1 .95 4.5  DUG 
                                           g:3.4-1 .95 4.0  b:1.8+2 .73 5.8X
 MPU  ePn     15:48:12.99   3.7    5.4 176 d:2.2+2     4.6X L:1.3-1 .68 4.0  MPU 
                                           g:8.0-2 .72 3.6  b:7.4+1 .68 5.4X
 WVOR ePn     15:48:13.20   1.7    5.6 240 d:4.0+2     5.2X L:8.2-1 .85 4.9X WVOR
      eSg     15:49:46.30  S res =  -1.0X  g:5.9-1 .85 4.4  b:3.2+2 .83 6.0X
 NLU  ePn     15:48:13.56   3.6    5.4 180 d:2.3+2     4.7X                  NLU 
 DGMT ePn     15:48:21.65   0.8    6.2  58 d:3.8+2     5.4X L:2.7+0 .73 5.5X DGMT
      eSg     15:50:00.13  S res =  -9.2X  g:2.3+0 .93 5.0  b:1.7+3 .73 7.0X
 PHWY ePn     15:48:26.37   3.7    6.4 128 d:4.1+2     5.5X                  PHWY
      eSn     15:50:05.16  S res =  30.0X
 MOD  ePn     15:48:31.54   1.8    6.9 242 d:2.7+2     5.3X L:2.3-1 .83 4.5X MOD 
      eSg     15:50:27.17  S res =  -2.6X  g:1.9-1 .95 4.0  b:1.7+2 .88 6.1X
 MSU  ePn     15:48:34.33   4.6    6.9 180 d:4.3+2     5.7X                  MSU 
 SMCO ePn     15:48:39.10   3.5    7.3 147 d:4.5+2     5.9X L:2.3-1 1.3 4.6X SMCO
                                           g:1.3-1 1.0 3.8  b:6.8+1 .70 5.9X
 ISCO ePn     15:48:40.96   4.3    7.4 137 d:5.9+2     6.2X L:1.2-1 .75 4.3X ISCO
                                           g:1.1-1 1.0 3.8  b:7.4+1 .75 5.9X
 PV10 ePn     15:48:41.27   4.6    7.4 161 d:3.3+2     5.6X                  PV10
 EDM  ePn     15:48:42.30  -0.9    7.9 355                                   EDM 
      ePg     15:49:13.71
 PAHR ePn     15:48:44.07   1.6    7.8 226 d:2.3+2     5.4X L:1.3-1 1.0 4.5X PAHR
      eSg     15:50:53.01  S res =  15.8X  g:1.3-1 1.0 3.9  b:6.0+1 .86 5.8X
 ARUT qPn     15:48:44.14   3.7    7.7 188 d:3.0+2     5.6X                  ARUT
 PV01 ePn     15:48:44.86   3.5    7.7 159                                   PV01
      eS      15:50:42.75  S res =   7.8X
 CCUT ePn     15:48:49.84   6.2X   7.9 187 d:3.2+2     5.8X                  CCUT
      eSg     15:50:59.96  S res =  20.2X
 NLWA ePn     15:48:50.70   0.8    8.4 288 d:2.7+2     5.7X L:2.9-1 1.0 4.9X NLWA
                                           g:2.8-1 1.0 4.3  b:3.0+1 .85 5.6X
 HUMO ePn     15:48:50.87   2.0    8.3 254 d:2.7+2     5.7X L:2.6-2 .53 3.8X HUMO
                                           g:2.8-2 .98 3.3  b:1.3+1 .53 5.4X
 PGC  ePn     15:48:50.93   0.7    8.4 297 d:2.9+2     5.8X L:8.7-1 .88 5.4X PGC 
      eSg     15:51:06.55                  g:6.5-1 .88 4.7  b:4.3+1 .58 5.9X
 YBH  ePn     15:48:53.51   1.5    8.5 248 d:2.2+2     5.6X L:3.8-2 1.0 4.1X YBH 
                                           g:3.5-2 1.0 3.4  b:3.5+1 1.0 5.6X
 TPNV ePn     15:49:02.46   3.8    9.0 202 d:3.5+2     6.2X L:5.5-2 .85 4.3X TPNV
                                           g:4.6-2 .98 3.6  b:2.7+1 .98 5.5X
 SDCO ePn     15:49:03.48   3.0    9.1 145 L:2.8-2 .93 4.0X g:2.3-2 .93 3.3  SDCO
                                           b:8.1+3 1.2 7.9X
 OHCM ePn     15:49:03.59   2.3    9.2 232 d:2.1+2     5.7X                  OHCM
 WDC  ePn     15:49:05.31   6.4X   9.0 241 d:1.6+1     3.1X L:1.2-2 .93 3.6X WDC 
                                           g:9.4-3 .93 2.9X b:9.4+0 .93 5.1X
 MTUM ePn     15:49:08.32   4.4    9.4 213 d:2.3+2     5.9X                  MTUM
 CMB  qPn     15:49:10.40   3.5    9.6 223 d:2.4+2     6.0X L:3.3-2 1.1 4.2X CMB 
                                           g:3.6-2 1.1 3.4  b:2.6+1 1.2 5.5X
 WUAZ ePn     15:49:15.62   4.7    9.9 176 d:3.6+2     6.5X L:4.0-2 .68 4.3X WUAZ
                                           g:3.1-2 .85 3.5  b:2.4+1 .68 5.7X
 NSHM ePn     15:49:18.61   0.9   10.4 232                                   NSHM
 GSC  ePn     15:49:26.97   5.1   10.7 201 g:9.5-3 .95 3.0X b:8.3+0 .85 5.1X GSC 
 ECSD ePn     15:49:28.16  -0.7   11.2  93 g:1.9-1 .98 4.3  b:4.7+1 .73 5.9X ECSD
 FFC  ePn     15:49:29.06  -2.1   11.4  31 g:2.8-1 .90 4.5  b:3.8+1 .45 6.0X FFC 
 CBKS qPn     15:49:31.95   1.7   11.3 121 g:1.7-1 1.0 4.3  b:1.1+2 .68 6.3X CBKS
 AGMN ePn     15:49:32.58  -0.5   11.5  70 g:3.3-1 1.0 4.5  b:1.4+2 .70 6.4X AGMN
 LENM qPn     15:49:32.92  -5.5X  11.9 159                                   LENM
 ANMO ePn     15:49:33.69   3.5   11.3 156 g:1.3-2 1.0 3.1X b:4.7+0 .50 5.1X ANMO
 BNM  qPn     15:49:34.67  -5.2X  12.0 158                                   BNM 
      e       15:49:47.66   7.7X
 SAO  epP     15:49:36.04   8.4X  11.1 222 g:1.5-2 .85 3.3  b:1.5+1 .85 5.3X SAO 
 KSU1 qPn     15:49:58.06   3.4   13.1 113 g:1.8-2 .78 3.5  b:1.3+1 .50 5.3X KSU1
 AMTX ePn     15:49:59.97   4.0   13.2 139 g:1.3-2 .83 3.4  b:1.3+1 .83 5.1X AMTX
 EYMN ePn     15:50:08.49  -3.9X  14.4  72 g:4.5-1 1.2 4.8  b:1.6+1 .68 4.8X EYMN
 SCIA qPn     15:50:09.77   1.0   14.1  98 g:2.6-2 .85 3.7  b:2.1+1 .55 5.1X SCIA
 MNTX ePn     15:50:17.17   1.2   14.6 157 g:1.5-2 .90 3.5  b:1.5+1 .90 4.5X MNTX
      eP      15:50:22.43   0.2X
 WMOK ePn     15:50:20.24   3.2   14.7 132 g:1.0-1 1.1 4.2  b:2.8+1 .68 4.9X WMOK
      eP      15:50:26.23   3.1X
 COWI ePn     15:50:30.33  -4.1X  16.1  79 g:1.2-1 1.0 4.4  b:2.0+1 .68 4.4  COWI
 JFWS qPn     15:50:32.13  -0.2   15.9  91 g:1.3-2 .73 3.6  b:1.3+1 .73 4.2  JFWS
 FCC  ePn     15:50:46.58  -3.4   17.3  33 g:6.4-2 .93 4.2  b:2.5-1 .30 2.8X FCC 
 HDIL ePn     15:50:48.84  -2.3   17.4  98                                   HDIL
 CCM  ePn     15:50:49.26   0.3   17.2 108 g:5.4-2 1.0 4.1  b:1.0+1 .60 4.1  CCM 
 DLBC ePn     15:50:49.31   2.6X  17.0 326                                   DLBC
 FVM  ePn     15:50:56.77   0.5   17.8 107 g:2.8-2 .85 3.9  b:2.8+1 .85 4.4  FVM 
 MIAR ePn     15:50:56.89   0.0   17.8 121 g:1.4-2 .75 3.6  b:1.3+1 .68 4.2  MIAR
 JCT  ePn     15:50:57.23   1.4   17.8 143 g:2.2-2 1.0 3.7  b:2.2+1 1.0 4.2  JCT 
 SKAG qP      15:51:18.89  -0.1   19.8 324 g:2.7-2 1.0 3.9  b:2.3+1 .88 4.5  SKAG
 BLO  qP      15:51:22.69   2.6   19.9  99 g:4.1-2 .75 4.2  b:4.1+1 .75 4.8  BLO 
 WVT  eP      15:51:28.74   1.7   20.5 108 g:3.7-2 1.0 4.0  b:3.7+1 1.0 4.7  WVT 
 OXF  eP      15:51:29.41   3.2   20.5 114 g:1.1-1 .98 4.5  b:1.1+2 .98 5.2  OXF 
 PLAL eP      15:51:34.04   1.5   21.0 111 g:3.8-2 .75 4.2  b:4.3+1 .55 5.0  PLAL
 ACSO eP      15:51:43.73   1.7   21.9  93 g:3.0-2 .88 4.1  b:3.0+1 .88 4.7  ACSO
 DAWY eP      15:52:06.04   1.9   24.1 330                                   DAWY
 MCWV eP      15:52:08.32   1.7   24.4  92 g:5.6-2 1.0 4.3  b:5.6+1 1.0 5.1  MCWV
 SSPA eP      15:52:16.24   0.6   25.4  89 g:1.9-2 .85 4.0  b:1.6+1 .95 4.7  SSPA
 INK  eP      15:52:16.54   0.0   25.5 342 b:3.2+2 1.0 5.9X                  INK 
 LONY eP      15:52:29.53   4.4X  26.4  78 g:1.1-2 .63 3.9  b:1.3+1 .55 4.8  LONY
 NCB  eP      15:52:33.33   4.4X  26.8  79 g:1.2-2 .85 3.8  b:1.2+1 .85 4.6  NCB 
 MCK  eP      15:52:34.92  -0.4   27.6 325 g:5.1-3 .94 3.4  b:5.1+0 .94 4.2  MCK 
 SVW2 eP      15:52:55.84   1.6   29.7 318                                   SVW2
 RES  eP      15:52:59.16  -0.8   30.4   9 b:7.2+1 .58 5.7                   RES 
 TTA  eP      15:53:01.96   2.1   30.3 321 b:1.9+1 1.1 4.8                   TTA 
 BILL eP      15:55:11.74   1.2   45.9 329 b:2.8+1 1.4 5.0                   BILL
 SDV  eP      15:55:51.88   1.6   50.9 122 b:4.7+0 .80 4.5                   SDV 
 TIXI eP      15:56:24.08   0.3   55.6 340 b:1.6+1 1.2 4.9                   TIXI
 YSS  eP      15:57:41.69   0.5   67.0 314 b:3.7+1 1.3 5.4                   YSS 
 MAJO eP      15:58:41.16   1.3   76.7 309 b:1.1+1 .75 5.0                   MAJO
 ARU  eP      15:58:48.76   0.7   78.2   5 b:7.8+0 .85 4.8                   ARU 
 KIEV eP      15:58:48.88  -1.2   78.6  24 b:7.6+0 .80 4.8                   KIEV
 ZAA0 eP      15:58:57.29  -0.3   80.0 350                                   ZAA0
 BRVK eP      15:59:08.35   0.5   81.9 359 b:1.8+1 .95 5.1                   BRVK
 KURK eP      15:59:17.91   0.1   83.8 353 b:1.3+1 1.0 5.1                   KURK
 CPUP qP      15:59:34.62   0.5   87.0 133 b:6.6+0 .73 5.0                   CPUP
 MK31 eP      15:59:35.57   0.2   87.3 350                                   MK31
      ePcP    15:59:38.48   1.0X



 Generated 2007 MAY  8 at 21:15 UTC

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

 


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