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Earthquake Activity


Phase Data

Explanation of Parameters


     28 JUL 2005  (209)

     ot  = 02:29:30.69   +/-   0.48              WESTERN MONTANA                 
     lat =      45.503   +/-    5.1
     lon =    -112.431   +/-    5.7              MAGNITUDE 3.5 (GS)       
     dep =         5.0  (geophysicist)

     35 km (20 miles) NNE of Dillon, Montana (pop 3,700)
     55 km (35 miles) S of Butte, Montana (pop 33,000)
     80 km (50 miles) E of Wisdom, Montana (pop 100)
     125 km (80 miles) SSW of HELENA, Montana (pop 25,000)
 
     ML 3.5 (GS).

     nph =   22 of  36    se = 1.26    FE=456                            A   

     error ellipse = ( 56.1,  0.0,  8.2;146.1,  0.0,  6.0;  0.0,  0.0,  0.0)

 mb = 0.0 (  0)  ML = 3.3 ( 18)  mblg = 3.2 ( 20)  md = 3.5 ( 10)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 MCMT ePg     02:29:39.84  -5.0X   0.7 204 d:3.3+2     3.5                   MCMT
 BOZ  ePg     02:29:42.70   0.8    0.6  75 d:3.5+2     3.5  L:4.3+0 .25 3.3  BOZ 
                                           g:2.1-1 .80 3.0 
 QLMT ePg     02:29:46.82  -2.6X   1.0 133 d:2.1+2     3.1                   QLMT
 YMR  ePg     02:29:53.93  -2.3X   1.3 128 d:2.3+2     3.3                   YMR 
 HRY  ePn     02:29:55.54   0.2    1.3  19 d:3.2+2     3.6                   HRY 
 YNR  ePn     02:29:56.86  -1.2    1.5 122 d:1.6+2     3.0                   YNR 
 YFT  ePn     02:29:57.93  -1.2    1.5 132 d:1.2+2     2.7                   YFT 
 CHMT ePn     02:29:58.09  -0.7    1.5 338 d:3.1+2     3.7                   CHMT
 MSO  ePn     02:29:59.81  -1.2    1.7 322 d:3.0+2     3.7  L:1.1+0 .48 3.5  MSO 
                                           g:5.8-1 .65 3.9 
 LKWY ePn     02:30:02.80   1.3    1.7 122 d:7.3+1     2.3X L:1.9-1 .90 2.8  LKWY
                                           g:1.4-1 .90 3.2 
 IMW  ePn     02:30:02.84  -1.6    1.9 146 d:2.5+2     3.6  L:6.2-1 .60 3.4  IMW 
                                           g:3.1-1 .63 3.7 
 GCMT ePn     02:30:05.34   0.6    2.0  81                                   GCMT
 MOOW P       02:30:05.96  -1.1    2.1 145 d:2.1+2     3.5X L:1.3-1 .40 2.8  MOOW
                                           g:8.5-2 .90 3.0 
 HLID P       02:30:07.03  -3.8X   2.4 217 d:2.8+2     3.8X L:3.1-1 .70 3.3  HLID
                                           g:1.9-1 .70 3.5 
 RRI2 P       02:30:07.94  -1.6    2.3 159 d:2.3+2     3.6X L:7.6-1 .55 3.6  RRI2
                                           g:4.0-1 .70 3.8 
 TPAW e       02:30:08.46  -0.7    2.3 152 d:1.7+2     3.3X L:2.3-1 .73 3.1  TPAW
                                           g:2.2-1 1.0 3.4 
 LOHW P       02:30:08.94  -0.5    2.3 145 d:2.0+2     3.5X L:1.4-1 .53 2.9  LOHW
                                           g:1.3-1 .93 3.2 
 SNOW P       02:30:10.39   0.0    2.4 149 d:1.1+2     3.0X L:1.3-1 .45 2.9  SNOW
                                           g:1.0-1 .90 3.1 
 REDW P       02:30:11.19   0.0    2.4 152 d:2.2+2     3.6X L:1.4-1 .70 3.0  REDW
                                           g:1.1-1 .98 3.1 
 BMO  P       02:30:27.05   1.1    3.5 261 d:1.4+2     3.5X L:8.6-2 .53 3.4  BMO 
                                           g:6.1-2 .73 3.2 
 WALA P       02:30:29.52   0.9    3.7 345 d:2.7+2     4.2X L:4.4-1 .50 4.1  WALA
                                           g:2.9-1 .70 3.9 
 HVU  P       02:30:30.99   1.9    3.7 184 d:1.6+2     3.7X                  HVU 
 NEW  P       02:30:34.86  -1.1    4.2 312 d:2.5+2     4.3X L:1.2-1 .58 3.7  NEW 
                                           g:6.4-2 .73 3.3 
 HWUT P       02:30:34.88   2.8    3.9 171 d:1.0+2     3.4X L:4.2-2 .63 3.2  HWUT
                                           g:6.4-2 1.1 3.0 
 SPUT P       02:30:38.78   3.3X   4.2 180 d:1.2+2     3.6X                  SPUT
 LAO  P       02:30:40.31   1.1    4.5  72 d:2.0+2     4.2X L:1.3-1 .48 3.8  LAO 
                                           g:8.2-2 .65 3.5 
 TCUT P       02:30:43.88   4.9X   4.4 170 d:1.1+2     3.6X                  TCUT
 WVOR P       02:30:52.46   0.1    5.4 238 d:1.7+2     4.3X L:2.6-2 .78 3.3X WVOR
                                           g:1.7-2 .78 2.9  b:1.7+1 .78 4.8X
 ELK  P       02:30:52.56   3.5X   5.2 204 d:1.9+2     4.4X L:2.4-2 .60 3.3  ELK 
                                           g:1.7-2 .83 2.8  b:1.3+1 .60 4.7X
 JLU  P       02:30:53.83   7.9X   5.0 171 d:9.7+1     3.6X                  JLU 
 DAU  P       02:30:53.89   5.0X   5.2 170 d:1.5+2     4.2X                  DAU 
 RWWY P       02:30:56.94   5.1X   5.4 133 d:1.8+2     4.4X L:2.2-2 .60 3.3  RWWY
                                           g:1.5-2 .93 2.7  b:7.8+0 .65 4.5X
 NLU  P       02:31:00.29   6.1X   5.6 177 d:4.8+0     0.8X                  NLU 
      e       02:31:07.97
 BMN  P       02:31:11.16   8.6X   6.2 216 d:5.0+1     3.4X L:1.4-2 .55 3.2X BMN 
                                           g:1.0-2 .83 2.7  b:7.5+0 .55 4.7X
 PV01 P       02:31:30.05   3.6X   7.9 157 d:1.3+1     2.6X                  PV01



 Generated 2005 JUL 28 at 03:43 UTC

 

First Government graphic