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Earthquake Hazards Program
Phase Data

Explanation of Parameters


      1 MAY 2008  (122)

     ot  = 08:11:42.00   +/-   0.00         CENTRAL CALIFORNIA              
     lat =      35.474   +/-    0.0
     lon =    -118.423   +/-    0.0              MAGNITUDE 4.4 (PAS)      
     dep =         3.2   +/-    0.0   

     15 km (10 miles) SSE of Lake Isabella, California (pop 3,300)
     40 km (25 miles) N of Tehachapi, California (pop 10,000)
     55 km (35 miles) ENE of Bakersfield, California (pop 247,000)
     440 km (275 miles) SE of SACRAMENTO, California
 
     ML 4.4 (PAS). Felt (IV) at Bodfish, Caliente, Lake Isabella and
     Weldon; (III) at Bakersfield, Kernville, Onyx Porterville,
     Tehachapi, Three Rivers, Visalia and Wofford Heights; (II) at
     Ridgecrest and San Jose. Also felt at Arvin, Bishop, California
     City, Delano, Glennville, Hesperia, Inyokern, Keene, Kings Canyon
     National Park, Lebec, Los Angeles, Mojave, Northridge, Palmdale,
     Posey, Shafter and Springville.

     nph =   48 of  70    se = 0.00    FE=039                            held

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

 mb = 0.0 (  0)  ML = 3.9 ( 11)  mblg = 0.0 (  0)  md = 4.2 (  4)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 ISA  ePg     08:11:46.69   0.9    0.2 348 d:2.9+2     4.1  L:9.6+0 .25 2.5X ISA 
      eSg     08:11:49.53  S res =   1.2X
 OSI  ePg     08:11:59.25   0.2    0.9 196 d:2.2+2     4.2  L:1.5+0 .57 3.1  OSI 
      eSg     08:12:11.71  S res =   1.0X
 PASC ePg     08:12:06.64  -0.5    1.3 171 d:2.0+2     4.2  L:3.0+0 .52 3.7  PASC
      eSg     08:12:25.81  S res =   1.6X
 GSC  ePg     08:12:07.06  -0.5    1.3  97 d:2.7+2     4.5  L:1.1+1 .90 4.3  GSC 
      eSg     08:12:24.27  S res =  -0.6X
 MTUM ePn     08:12:16.76   1.6    1.9 357                                   MTUM
 SNCC ePn     08:12:22.72   0.6    2.4 203 d:8.3+1     3.9X L:1.1+0 .78 3.9  SNCC
      eSn     08:12:49.76  S res =  -2.3X
 PFO  ePn     08:12:22.95  -0.3    2.5 138 L:1.8+0 .75 4.1                   PFO 
      eSg     08:12:59.86  S res =  -1.5X
 SAO  ePn     08:12:27.74   0.5    2.8 299                                   SAO 
      eSn     08:13:02.78  S res =   1.7X
 SHPR ePn     08:12:28.54   0.2    2.8  68                                   SHPR
 CMB  ePn     08:12:31.97   1.5    3.0 329 L:7.5-1 .52 4.1                   CMB 
      qSn     08:13:06.74  S res =  -0.3X
 BAR  ePn     08:12:32.74   0.3    3.1 152 L:6.2-1 .70 4.0                   BAR 
      eSn     08:13:09.55  S res =  -0.9X
 WAKR ePn     08:12:37.26   4.8    3.1 345                                   WAKR
 GLA  ePn     08:12:40.75  -1.2    3.8 128 L:6.1-1 .90 4.3                   GLA 
      eSg     08:13:44.63  S res =  -0.6X
 SAC  ePn     08:12:42.21   0.2    3.8 304                                   SAC 
 CCUT ePn     08:12:53.32   1.1    4.6  62 L:6.3-2 1.3 3.5                   CCUT
      eSg     08:14:07.66  S res =  -1.2X
 PAHR ePn     08:12:53.36   5.0    4.3 350 L:2.2-1 1.2 4.0                   PAHR
 ARUT ePn     08:12:53.92   1.0    4.6  59                                   ARUT
      eSg     08:14:09.85  S res =  -0.7X
 OHCM ePn     08:12:55.03   3.2    4.6 329                                   OHCM
 BMN  ePn     08:13:00.80   2.2    5.0  10 L:7.0-2 1.4 3.7                   BMN 
      eSg     08:14:22.39  S res =  -1.5X
 WUAZ ePn     08:13:09.12   0.7    5.8  88                                   WUAZ
      eSg     08:14:44.61  S res =  -2.1X
 MSU  ePn     08:13:11.65   1.9    5.8  57                                   MSU 
      eSg     08:14:51.32  S res =   1.5X
 ELK  ePn     08:13:11.82   2.3    5.8  25                                   ELK 
      eSg     08:14:45.43  S res =  -3.8X
 WDC  ePn     08:13:13.44   1.2    6.0 329                                   WDC 
 N12A ePn     08:13:13.46   1.7    6.0  25                                   N12A
      eSg     08:14:53.32  S res =  -1.2X
 DUG  ePn     08:13:20.77   2.5    6.5  42 d:1.9+2     6.2X L:5.5-2 .90 3.9X DUG 
      eSg     08:15:08.24  S res =  -1.6X  b:2.9+1 .83 5.3X
 M13A ePn     08:13:22.42   0.2    6.8  28 b:2.3+0 .45 4.6X                  M13A
      eSg     08:15:17.38  S res =  -1.7X
 MOD  ePn     08:13:23.11   3.3    6.6 348 L:5.5-2 .92 3.9X                  MOD 
      eSg     08:15:11.07  S res =  -2.4X
 TUC  ePn     08:13:25.84  -0.9    7.1 114 L:1.1-2 .55 3.2X                  TUC 
      eSg     08:15:24.61  S res =  -5.1X
 TMUT ePn     08:13:26.57   2.3    6.9  54 d:3.5+1     4.9X L:4.6-2 .78 3.9X TMUT
                                           b:3.0+1 .78 5.5X
 SRU  qPn     08:13:33.08   3.9    7.3  58 d:5.3+1     5.4X L:3.3-2 .64 3.8X SRU 
                                           b:1.9+1 .64 5.4X
 HVU  qPn     08:13:34.04  -1.0    7.7  33                                   HVU 
 JLU  ePn     08:13:36.88   4.2    7.5  45                                   JLU 
 MVCO ePn     08:13:45.09   3.1    8.2  75                                   MVCO
 HWUT ePn     08:13:45.98   4.7    8.1  39                                   HWUT
 NLU  ePg     08:13:48.10  -2.8    6.7  46 d:5.7+1     5.3X L:5.9-2 1.2 3.9X NLU 
                                           b:7.5+1 1.2 5.6X
 WVOR ePg     08:13:53.18  -2.0    7.0 359 d:2.8+2     6.7X L:3.3-2 .90 3.7X WVOR
      eSg     08:15:22.27  S res =  -2.9X  b:2.1+1 1.0 5.2X
 HLID ePn     08:13:53.92   5.7    8.6  20                                   HLID
 SMCO ePn     08:14:07.39   2.7    9.8  65                                   SMCO
 ANMO ePn     08:14:08.00   4.0    9.8  90                                   ANMO
 BNM  qPn     08:14:08.74   4.9    9.8  94 d:1.5+1     5.3X L:5.8-3 1.1 3.5X BNM 
                                           b:6.4+0 1.1 5.0X
 REDW ePn     08:14:09.75   5.6    9.8  34                                   REDW
 TPAW ePn     08:14:10.59   5.7    9.9  34                                   TPAW
 SNOW ePn     08:14:10.96   5.1    9.9  34                                   SNOW
 LOHW ePn     08:14:13.25   4.9   10.1  34                                   LOHW
 LKWY ePn     08:14:17.52  -2.4   11.0  32                                   LKWY
 HAWA ePn     08:14:27.06   7.7   10.9 356                                   HAWA
 RSW  ePn     08:14:27.81   8.3   10.9 356                                   RSW 
 EDM  ePn     08:15:59.00   4.6   18.1  10                                   EDM 



 Generated 2008 MAY  8 at 04:06 UTC

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


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