Phase Data

Explanation of Parameters


     20 FEB 2013  ( 51)

     ot  = 12:22:01.78   +/-   2.30              OFF COAST OF NORTHERN CALIFORNIA
     lat =      40.409   +/-   11.8
     lon =    -127.035   +/-   13.9              MAGNITUDE 4.3 (GS)       
     dep =        10.0   +/-    2.0   

     245 km (152 miles) W of Fortuna, California
     247 km (153 miles) W of Eureka, California
     281 km (175 miles) WSW of Crescent City, California
     518 km (322 miles) WNW of SACRAMENTO, California

     nph =   61 of  64    se = 1.13    FE=034                            A   

     error ellipse = (254.0,  0.0, 21.5;164.0,  0.0, 17.7; 67.0, 89.0,  3.0)

 mb = 4.3 (  5)  ML = 0.0 (  0)  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
 JCC  ePn     12:22:37.89  -2.2    2.3  79                                   JCC 
      eSn     12:23:06.17  S res =  -2.5 
 KHMM ePn     12:22:41.20  -2.2    2.6  78                                   KHMM
 KMRM ePn     12:22:42.15  -1.1    2.5  94                                   KMRM
 KCPM ePn     12:22:44.44  -1.6    2.8 104                                   KCPM
 KEBM ePn     12:22:49.70  -2.3    3.2  39                                   KEBM
 HOPS ePn     12:22:52.68  -1.8    3.4 114                                   HOPS
      eSn     12:23:34.99  S res =   0.5 
 WDC  ePn     12:22:54.34  -0.9    3.4  86                                   WDC 
 YBH  ePn     12:22:56.08  -0.6    3.5  67                                   YBH 
 GDXM ePn     12:22:58.47   0.2    3.6 115                                   GDXM
 HUMO ePn     12:22:58.68  -1.3    3.8  53                                   HUMO
 MCCM ePn     12:23:00.11  -2.1    3.9 124                                   MCCM
 ORV  ePn     12:23:07.13  -0.6    4.3 100                                   ORV 
 AFDM ePn     12:23:15.43  -0.1    4.9 105                                   AFDM
 COR  ePn     12:23:16.50  -0.4    5.0  32                                   COR 
 BEKR ePn     12:23:19.54   0.5    5.1  94                                   BEKR
 MOD  ePn     12:23:20.33  -0.7    5.3  71                                   MOD 
 H04A ePn     12:23:24.09  -0.7    5.6  38                                   H04A
 SAO  ePn     12:23:24.10  -2.3    5.7 128                                   SAO 
 PINE ePn     12:23:25.13  -0.9    5.7  51                                   PINE
 CMB  ePn     12:23:27.08   0.8    5.7 113                                   CMB 
 PNTR ePn     12:23:32.45   3.3X   5.9 101                                   PNTR
 YERR ePn     12:23:34.34   1.1    6.2 101                                   YERR
 WAKR ePn     12:23:35.56   2.3    6.2 106                                   WAKR
 WVOR ePn     12:23:37.98  -1.4    6.6  70                                   WVOR
 I07A ePn     12:23:40.40   0.3    6.7  54                                   I07A
 RYN  ePn     12:23:43.10   1.1    6.8 102                                   RYN 
 MDPB ePn     12:23:43.51   1.9    6.8 112                                   MDPB
 PAGB ePn     12:23:43.83  -1.9    7.1 129                                   PAGB
 J08A ePn     12:23:44.21  -0.7    7.0  62                                   J08A
 KVN  ePn     12:23:44.90   0.1    7.0  98                                   KVN 
 NV01 ePn     12:23:45.26   0.1    7.0 104                                   NV01
 NLWA ePn     12:23:48.88  -0.2    7.4  17                                   NLWA
 LON  ePn     12:23:49.93   0.3    7.4  29                                   LON 
 G08A ePn     12:23:54.35   0.6    7.7  48                                   G08A
 D05A ePn     12:23:54.98   1.1    7.7  27                                   D05A
 E07A ePn     12:23:59.48   0.6    8.1  38                                   E07A
 HAWA ePn     12:23:59.94   0.6    8.1  40                                   HAWA
 ISA  ePn     12:24:01.53   0.0    8.3 122                                   ISA 
      eSn     12:25:35.89  S res =   1.1 
 LTY  ePn     12:24:02.03   0.6    8.3  32                                   LTY 
 BMO  ePn     12:24:04.61   0.5    8.4  55                                   BMO 
 PGC  ePn     12:24:06.58   0.0    8.6  16                                   PGC 
 D08A ePn     12:24:09.12  -0.8    8.9  39                                   D08A
 E09A ePn     12:24:09.63  -0.5    8.9  44                                   E09A
 B06A ePn     12:24:10.94  -1.1    9.0  24                                   B06A
 TPNV ePn     12:24:12.87  -0.6    9.1 109                                   TPNV
 F10A ePn     12:24:14.02   1.3    9.1  49                                   F10A
 GSC  ePn     12:24:19.47  -0.1    9.6 119                                   GSC 
 B08A ePn     12:24:20.84  -0.1    9.7  32                                   B08A
 HLID ePn     12:24:24.48   0.1    9.9  67                                   HLID
 LDFC ePn     12:24:36.31   0.4   10.8 116                                   LDFC
 DUG  ePn     12:24:40.67   3.2X  10.9  87                                   DUG 
 MCMT ePn     12:24:45.45   1.4   11.3  62                                   MCMT
 MSO  ePn     12:24:47.12   1.7   11.4  52                                   MSO 
 DLMT ePn     12:24:51.19   2.5   11.7  60                                   DLMT
 HRY  ePn     12:25:03.99   1.6   12.7  55                                   HRY 
 LKWY ePn     12:25:08.11   1.9   13.0  66                                   LKWY
 SDCO ePn     12:26:02.85   3.9X  16.9  92 b:1.0+1 1.3 3.8                   SDCO
 KSCO eP      12:26:24.33   2.6   18.8  86 b:3.2+1 1.1 4.4                   KSCO
 FFC  eP      12:26:55.93   0.1   22.0  41 b:1.4+1 1.3 4.2                   FFC 
 ECSD eP      12:27:05.55   1.4   22.8  72 b:7.4+0 .95 4.2                   ECSD
 HDA  eP      12:27:40.76   0.0   26.7 341 b:4.4+1 2.0 4.8                   HDA 



 Generated 2013 FEB 20 at 12:34 UTC

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