Phase Data

Explanation of Parameters


      6 APR 2013  ( 96)

     ot  = 19:57:48.10   +/-   1.67              MARIANA ISLANDS REGION          
     lat =      16.269   +/-    7.9
     lon =     147.275   +/-   11.5              MAGNITUDE 4.8 (GS)       
     dep =        49.6   +/-    6.4   

     172 km (107 miles) E of Anatahan, Northern Mariana Islands
     204 km (127 miles) NE of SAIPAN, Northern Mariana Islands
     259 km (161 miles) SE of Pagan, Northern Mariana Islands
     411 km (255 miles) NE of HAGATNA, Guam

     nph =   69 of  95    se = 0.82    FE=215                            A   

     error ellipse = ( 86.0,  3.0, 17.6;355.0, 10.0, 12.1;195.0, 78.0,  9.6)

 mb = 4.8 ( 77)  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
 SARN ePn     19:58:13.62   1.0    1.5 287                                   SARN
 ANA2 ePn     19:58:13.84   1.2    1.5 273                                   ANA2
 GUMO ePn     19:58:41.60   1.1    3.5 222                                   GUMO
      eSn     19:59:21.72  S res =   0.6 
 PATS ePn     20:00:59.67  -8.3   14.3 130                                   PATS
 RABL eP      20:02:25.80  -0.7   20.9 166 b:1.5+2 1.2 5.2                   RABL
 INU  eP      20:02:26.68  -1.8   21.1 336 b:1.1+2 1.6 4.9                   INU 
 MAJO eP      20:02:34.11  -1.3   21.7 340 b:2.5+1 .90 4.6                   MAJO
 MJB9 eP      20:02:34.23  -1.2   21.8 340 b:2.5+1 .88 4.6                   MJB9
 FAKI eP      20:03:00.75   0.8   24.2 219 b:3.6+1 1.1 4.8                   FAKI
 YHNB eP      20:03:13.39   0.1   25.6 293 b:8.9+1 1.5 5.1                   YHNB
 PMG  eP      20:03:13.44   1.4   25.5 180 b:2.2+1 .85 4.7                   PMG 
 SSLB eP      20:03:16.21   1.4   25.8 291 b:2.4+1 1.2 4.6                   SSLB
 KS15 eP      20:03:25.68  -1.7   27.2 325 b:1.0+2 1.6 5.2                   KS15
 KS01 eP      20:03:26.06  -1.0   27.2 325                                   KS01
 LUWI eP      20:03:48.55  -1.0   29.7 237 b:2.8+1 .90 5.0                   LUWI
 KKM  eP      20:04:10.89   0.1   32.1 255 b:1.1+1 .80 4.7                   KKM 
 MTN  eP      20:04:18.94   0.0   33.0 210 b:4.5+1 1.3 5.2                   MTN 
 CTAO eP      20:04:46.72   0.9   36.1 182 b:2.8+1 1.3 5.0                   CTAO
 SBUM eP      20:04:54.12  -0.2   37.1 252 b:4.4+0 .90 4.4                   SBUM
 WRAB eP      20:05:02.71  -0.1   38.1 200 b:1.0+1 .95 4.7                   WRAB
 WB2  eP      20:05:03.55   0.6   38.2 200                                   WB2 
      eP      20:05:03.55   0.6 
 KSM  eP      20:05:11.54  -0.8   39.3 252 b:1.6+1 .70 5.0                   KSM 
 FITZ eP      20:05:20.30  -0.1   40.3 213 b:1.2+1 1.1 4.6                   FITZ
 AS01 eP      20:05:32.67  -0.2   41.8 199                                   AS01
 AS31 eP      20:05:33.07   0.1   41.8 199 b:1.1+0 .65 3.7                   AS31
 MYKOMeP      20:05:59.26  -0.6   45.1 256 b:4.7+1 1.5 5.1                   MYKO
 ULN  eP      20:06:03.25  -0.3   45.6 323 b:1.1+1 1.2 4.6                   ULN 
 CHTO eP      20:06:07.19  -0.1   46.0 281 b:7.7+0 .85 4.7                   CHTO
 CM01 eP      20:06:08.34   0.9   46.1 280                                   CM01
 CM31 eP      20:06:09.55   2.0X  46.1 280 b:1.6+1 .80 5.0                   CM31
 KULM eP      20:06:15.29   0.7   47.0 262 b:1.1+1 .90 4.8                   KULM
 STKA eP      20:06:23.61   0.0   48.2 187 b:1.4+0 1.0 4.0                   STKA
 PSI  eP      20:06:32.97  -0.7   49.4 259 b:2.1+1 .80 5.2                   PSI 
 TLY  eP      20:06:33.62   0.7   49.4 326 b:4.5+0 1.0 4.4                   TLY 
 BBOO eP      20:06:37.48   0.2   50.0 192 b:1.5+1 1.0 5.0                   BBOO
 GSI  eP      20:06:46.35  -0.2   51.1 258 b:5.8+1 .90 5.6                   GSI 
 SHL  eP      20:06:55.48   0.6X  52.3 290 b:1.1+1 .60 5.0                   SHL 
 LSA  eP      20:06:59.95  -0.3   52.9 295 b:3.0+1 1.3 5.1                   LSA 
 BILL eP      20:07:01.56   0.5   53.2   9 b:9.8+0 .80 4.9                   BILL
 MORW eP      20:07:09.34   0.2   54.2 214 b:2.1+1 1.1 5.1                   MORW
 TIXI eP      20:07:25.43   1.1   56.4 353 b:5.1+0 1.1 4.5                   TIXI
 WMQ  eP      20:07:29.76   0.6   57.0 312 b:1.4+1 .90 5.0                   WMQ 
 ZALV eP      20:07:54.22  -1.1X  60.8 323                                   ZALV
 ZAA0 eP      20:07:55.32   0.0   60.8 323 b:4.4+0 .90 4.6                   ZAA0
 MK01 eP      20:07:58.50   0.5X  61.2 315                                   MK01
 MK31 eP      20:07:58.67   0.6X  61.2 315 b:4.4+0 1.0 4.5                   MK31
 MAKZ eP      20:07:59.51   0.0   61.4 315 b:6.6+0 .85 4.8                   MAKZ
 PPLA eP      20:08:06.64   1.1   62.4  27 b:6.3+0 1.1 4.6                   PPLA
 IM3  eP      20:08:08.50   0.1   62.8  23                                   IM3 
 BPAW eP      20:08:12.38   1.0X  63.3  26 b:5.5+0 1.0 4.6                   BPAW
 MLY  eP      20:08:13.84  -0.2   63.7  25 b:4.6+0 .88 4.6                   MLY 
 PRZ  eP      20:08:15.30   0.6X  63.7 310 b:2.9+1 1.1 5.3                   PRZ 
 SML  eP      20:08:15.32   0.6X  63.8  29 b:2.0+1 1.2 5.0                   SML 
 RND  eP      20:08:15.90  -0.1   64.0  27 b:5.9+0 1.0 4.6                   RND 
 KURK eP      20:08:16.40  -0.5   64.1 319 b:3.7+1 1.4 5.2                   KURK
 SCM  eP      20:08:20.66   2.8X  64.2  29 b:1.6+1 .92 5.1                   SCM 
 IL1  eP      20:08:22.04  -1.8X  65.2  26                                   IL1 
 KDJ  eP      20:08:22.75   2.1X  64.6 309 b:1.2+1 1.0 4.9                   KDJ 
 NRN  eP      20:08:27.47   1.0X  65.5 309 b:8.1+0 1.0 4.7                   NRN 
 AAK  eP      20:08:32.95  -0.5   66.6 310 b:4.5+0 1.0 4.4                   AAK 
 NIL  eP      20:08:42.81   0.2   68.0 300 b:4.9+1 .90 5.5                   NIL 
 DAWY eP      20:08:44.42   1.1X  68.2  27 b:1.3+1 1.4 4.7                   DAWY
 HYT  eP      20:08:49.01   2.3X  68.7  31 b:7.0+0 .88 4.6                   HYT 
 BRVK eP      20:08:50.32  -0.2   69.4 321 b:1.1+1 1.1 4.7                   BRVK
 KK31 eP      20:08:52.12   0.6X  69.5 311 b:1.8+1 1.1 4.9                   KK31
 KKAR eP      20:08:52.12   0.6X  69.5 311 b:1.8+1 1.1 4.9                   KKAR
 BTK  eP      20:08:52.57   1.1X  69.4 307 b:4.6+0 .90 4.4                   BTK 
 GAR  eP      20:08:55.24   0.8X  69.9 306 b:4.3+1 1.3 5.2                   GAR 
 INK  eP      20:09:00.47   0.1   71.0  23 b:1.0+1 1.2 4.6                   INK 
 KBL  eP      20:09:03.03  -0.7   71.4 302 b:1.8+1 1.0 4.9                   KBL 
 ARU  eP      20:09:28.81  -0.6   75.9 325 b:4.7+0 .70 4.5                   ARU 
 ABKAReP      20:09:30.62  -0.2X  76.1 318 b:3.9+0 .80 4.4                   ABKA
 YKB5 eP      20:09:48.84   0.0X  79.4  28                                   YKB5
 YKW3 eP      20:09:49.26   0.5   79.4  28 b:2.6+0 .90 4.2                   YKW3
 GYA0BeP      20:09:53.60   3.5X  79.5 307 b:1.0+1 1.3 4.6                   GYA0
 RES  eP      20:09:58.60  -0.7   81.4  14 b:5.8+0 1.1 4.5                   RES 
 J08A eP      20:10:03.84   0.4   82.0  47 b:6.9+0 1.0 4.6                   J08A
 KVN  eP      20:10:11.22   0.4   83.4  51 b:4.1+0 1.1 4.4                   KVN 
 ELK  eP      20:10:22.82   3.6X  85.1  49 b:2.0+0 .90 4.3                   ELK 
 FXWY eP      20:10:28.56  -0.7   87.1  45 b:9.5+0 1.5 4.8                   FXWY
 YHH  eP      20:10:28.70   0.7   86.9  44 b:9.1+0 1.3 4.8                   YHH 
 DUG  eP      20:10:28.77   0.2   87.0  49 b:6.0+0 1.0 4.8                   DUG 
 IMW  eP      20:10:29.02  -0.2   87.1  45 b:3.6+0 1.0 4.6                   IMW 
 H17A eP      20:10:29.36  -0.2   87.2  45 b:6.6+0 1.1 4.8                   H17A
 YNR  eP      20:10:29.48   0.8   87.0  44 b:2.0+1 1.2 5.2                   YNR 
 NLU  eP      20:10:36.11   4.5X  87.6  49 b:1.3+1 1.5 4.9                   NLU 
 JLU  eP      20:10:36.53   3.7X  87.9  48 b:5.6+0 1.1 4.7                   JLU 
 U15A ePcP    20:10:42.05   3.9   88.6  52                                   U15A
 MNMC ePKPdf  20:17:19.84  -0.9  144.8 100                                   MNMC
 PB11 ePKPdf  20:17:20.08  -0.4  144.7 101                                   PB11
 LPAZ ePKPdf  20:17:23.38   0.0  146.0  95                                   LPAZ
 DLBC eS      20:18:27.72  -2.2X  72.5  33                                   DLBC
 RWWY eS      20:21:36.07  -0.6X  90.5  46                                   RWWY



 Generated 2013 APR  7 at 05:59 UTC

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