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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     11 MAR 2008  ( 71)

     ot  = 19:42:25.48   +/-   0.66              NORTHERN ALASKA                 
     lat =      69.824   +/-    6.4
     lon =    -146.655   +/-    6.7              MAGNITUDE 4.0 (GS)       
     dep =        10.0  (geophysicist)

     90 km (55 miles) SE of Prudhoe Bay, Alaska (pop 5)
     120 km (75 miles) WSW of Kaktovik, Alaska (pop 200)
     560 km (345 miles) N of Fairbanks, Alaska
     1410 km (880 miles) NNW of JUNEAU, Alaska

     nph =   24 of  45    se = 1.14    FE=676                            A   

     error ellipse = (111.0,  0.0,  8.9; 21.0,  0.0,  8.3;  0.0,  0.0,  0.0)

 mb = 4.1 (  7)  ML = 4.3 (  2)  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
 COLD ePn     19:43:11.79  -0.1    2.9 208 d:3.5+2     5.1X L:1.1+0 .92 4.2  COLD
      eSg     19:43:53.89  S res =  -5.3X
 IMA2 ePn     19:43:33.75  -1.4    4.6 218 d:3.5+2     5.8X                  IMA2
      eSg     19:44:46.42  S res =  -6.8X
 COLA ePn     19:43:40.34   0.0    5.0 186 d:2.6+2     5.7X L:4.5-1 1.0 4.5  COLA
      eSn     19:44:33.02  S res =  -5.0X
      eSg     19:45:03.82  S res =  -1.8X
 EGAK ePn     19:43:47.23   0.0    5.5 155 d:4.3+2     6.3X L:4.6-1 1.6 4.6X EGAK
      eSn     19:44:47.32  S res =  -3.1X  b:7.5+1 1.0 5.3X
      eSg     19:45:20.29  S res =  -1.4X
 BPAW ePn     19:43:54.16   0.0    6.0 199 d:3.2+2     6.3X L:1.8-1 1.1 4.3X BPAW
      eSg     19:45:33.61  S res =  -4.0X  b:3.6+1 .78 5.2X
 MCK  ePn     19:43:56.82   0.1    6.2 189 d:2.5+2     6.1X L:3.0+1 1.4 6.6X MCK 
      eSn     19:45:04.77  S res =  -2.7X  b:2.8+3 .52 7.3X
      eSg     19:45:42.01  S res =  -1.7X
 CHUM ePn     19:43:59.14   0.0    6.4 203 d:3.3+2     6.4X L:3.1-1 1.2 4.6X CHUM
      eSn     19:45:09.49  S res =  -2.3X  b:4.6+1 .70 5.5X
      eSg     19:45:44.27  S res =  -5.3X
 KTH  ePn     19:44:01.33  -0.1    6.5 197 d:3.1+2     6.4X L:1.5-1 1.1 4.3X KTH 
                                           b:3.1+1 .78 5.3X
 TRF  ePn     19:44:02.10   0.1    6.6 194 d:3.1+2     6.4X L:1.9-1 1.4 4.4X TRF 
                                           b:4.5+1 .82 5.5X
 PAX  ePn     19:44:07.04   0.4    6.9 175 d:3.1+2     6.6X L:9.0-2 .96 4.2X PAX 
      eSn     19:45:24.09  S res =  -1.0X  b:3.7+1 .88 5.5X
      eSg     19:46:07.12  S res =   0.4X
 MENT ePn     19:44:08.40   0.2    7.0 169 d:2.5+2     6.4X                  MENT
 PPLA ePn     19:44:12.20   0.1    7.3 200 d:3.0+2     6.7X L:2.5-1 1.3 4.7X PPLA
      eSg     19:46:20.46  S res =   1.0X  b:4.3+1 .94 5.6X
 TTA  ePn     19:44:19.45  -0.4    7.9 213 d:2.5+2     6.8X L:1.2-1 1.3 4.4X TTA 
      eSg     19:46:35.03  S res =  19.6X  b:2.6+1 1.2 5.3X
 PMR  ePn     19:44:28.02   1.9    8.3 188                                   PMR 
 RC01 ePn     19:44:35.36   1.9    8.9 190 d:2.0+2     7.0X L:5.6-2 1.3 4.3X RC01
      eSn     19:46:13.12  S res =  -0.1X  b:3.3+1 1.0 5.6X
 TNA  ePn     19:44:35.80  -1.0    9.1 252 d:3.3+2     7.5X L:3.1-2 .62 4.1X TNA 
      eSn     19:46:06.40  S res = -12.9X  b:7.1+0 .68 5.2X
 SVW2 ePn     19:44:41.53  -0.6    9.5 207 d:2.5+2     7.4X                  SVW2
 SKAG ePn     19:45:07.50  -1.3   11.5 150                                   SKAG
 GAMB ePn     19:45:09.64   0.1   11.5 250 b:4.7+0 .98 4.8X                  GAMB
 DLBC ePn     19:45:35.18  -1.2   13.5 140                                   DLBC
 RES  ePn     19:46:09.67  -0.6   16.0  49 b:4.7+0 .70 3.7                   RES 
 BILL ePn     19:46:13.65  -5.3X  16.7 286 b:5.6+0 .80 3.7                   BILL
      eS      19:49:10.00  S res = -14.0X
 FFC  ePn     19:47:48.95   0.9   24.9 104 b:6.1+0 .95 4.3                   FFC 
 TIXI eP      19:47:59.10   2.9   25.8 314 b:5.1+0 1.0 4.2                   TIXI
 TLY  qP      19:51:06.93  -1.8   48.6 309 b:2.5+0 .76 4.3                   TLY 
 ARU  ePn     19:51:43.48   3.8X  52.7 343 b:3.0+0 .80 4.3                   ARU 
 BRVK qP      19:51:56.42   3.6X  54.5 334 b:7.2-1 .47 4.0                   BRVK



 Generated 2008 MAR 11 at 20:20 UTC

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


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