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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     20 MAR 2008  ( 80)

     ot  = 04:43:25.54   +/-   0.28              OFF COAST OF CENTRAL PERU       
     lat =     -11.718   +/-    6.0
     lon =     -79.197   +/-    6.3              MAGNITUDE 4.9 (GS)       
     dep =        35.0  (geophysicist)

     185 km (115 miles) WSW of Huacho, Peru
     235 km (145 miles) W of LIMA, Peru
     300 km (185 miles) SSW of Chimbote, Peru
     300 km (190 miles) SW of Huaraz, Peru

     nph =   66 of  77    se = 0.77    FE=114                            A   

     error ellipse = ( 47.2,  0.0, 10.1;137.2,  0.0,  5.2;  0.0,  0.0,  0.0)

 mb = 4.8 ( 34)  ML = 4.0 (  1)  mblg = 3.9 (  2)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 NNA  ePn     04:43:59.31  -2.0    2.3  97 d:2.4+2     4.8X L:1.5+0 .50 4.0  NNA 
      eS      04:44:27.88  S res =  -0.8X  g:8.6-1 .70 4.2 
 OTAV ePn     04:46:12.84  -0.4   11.9   4                                   OTAV
      eSn     04:48:25.84  S res =   0.7X
 LVC  P       04:46:51.96   1.8   14.6 139                                   LVC 
 PAYG eP      04:47:05.83   3.6X  15.5 314 g:2.4-2 .95 3.7  b:1.7+1 .55 4.5  PAYG
 ROSC P       04:47:24.49   1.3   17.2  17                                   ROSC
      LR      04:55:00.23                                  
 SIV  P       04:47:34.84   0.4   18.1 106                                   SIV 
 CFAA P       04:48:19.60   0.3   22.2 155                                   CFAA
      LR      04:55:02.71                                  
 SDV  eP      04:48:20.53   1.6   22.2  23 b:1.5+1 1.2 4.3                   SDV 
 PLCA P       04:49:33.20   3.2X  29.9 167                                   PLCA
      LR      05:00:55.42                                  
 CNNC eP      04:51:52.77   1.7   46.7   1 b:6.1+1 .78 5.6                   CNNC
 TXAR P       04:51:54.40  -0.4   47.2 330                                   TXAR
 WMOK eP      04:52:11.83  -3.2X  49.8 339 b:7.8+1 2.9 5.2                   WMOK
 MNTX eP      04:52:15.37  -0.7   49.9 331 b:1.1+1 1.4 4.7                   MNTX
 LAZ  eP      04:52:39.75   0.6   53.0 331 b:7.4+0 1.1 4.5                   LAZ 
 ANMO eP      04:52:39.96  -0.1   53.1 332 b:1.5+1 .90 5.0                   ANMO
 TUC  eP      04:52:40.22  -0.3   53.2 326 b:4.2+0 1.1 4.3                   TUC 
 SDCO eP      04:52:54.11   0.0   55.0 335 b:7.4+0 1.0 4.7                   SDCO
 MVCO eP      04:53:00.17  -0.2   55.9 332 b:1.2+1 1.3 4.7                   MVCO
 WUAZ eP      04:53:00.76   0.0   56.0 328 b:1.4+1 .95 5.0                   WUAZ
 PFO  eP      04:53:10.81   0.2   57.4 323 b:5.2+0 .80 4.6                   PFO 
 SRU  eP      04:53:17.80   0.0   58.4 332 b:1.0+1 .96 4.9                   SRU 
 CCUT eP      04:53:20.14   1.1   58.6 328 b:1.0+1 1.1 4.8                   CCUT
 SHPR eP      04:53:20.53   0.4   58.7 326                                   SHPR
 ISA  eP      04:53:29.23   0.5   60.0 323 b:8.2+0 1.0 4.8                   ISA 
 JLU  eP      04:53:29.40   0.3   60.0 332 b:1.2+1 .98 5.0                   JLU 
 DUG  eP      04:53:31.78   0.7   60.3 331 b:1.5+1 .90 5.1                   DUG 
 PDAR P       04:53:34.40  -0.9   60.9 335                                   PDAR
 BW06 eP      04:53:34.97  -0.4   60.9 335 b:5.5+0 1.1 4.6                   BW06
 BGU  eP      04:53:35.65  -0.1   61.0 331 b:6.4+0 1.1 4.7                   BGU 
 MTUM eP      04:53:37.71   0.4   61.2 325                                   MTUM
 HVU  eP      04:53:39.15  -0.3   61.6 332 b:1.0+1 .90 5.0                   HVU 
 M13A eP      04:53:41.32  -0.3   61.9 331                                   M13A
 NVAR P       04:53:41.78   0.3   61.8 326                                   NVAR
 ELK  eP      04:53:42.36   0.3   61.9 330 b:9.6+0 .98 4.9                   ELK 
 REDW eP      04:53:42.74   0.5   62.0 334 b:8.8+1 2.5 5.4                   REDW
 RRI2 eP      04:53:42.99  -0.6   62.2 334 b:1.2+1 1.0 5.0                   RRI2
 DCID1eP      04:53:44.59   0.1   62.3 334 b:1.2+1 1.1 4.9                   DCID
 WAKR eP      04:53:46.69   0.6   62.5 325                                   WAKR
 LKWY eP      04:53:49.07   1.5   62.8 335 b:7.1+1 2.9 5.3                   LKWY
 ULM  P       04:53:49.65  -1.8   63.4 348                                   ULM 
 PAHR eP      04:53:52.13   0.8   63.3 326 b:1.9+1 1.2 5.1                   PAHR
 HLID eP      04:53:53.72   0.0   63.7 332 b:3.2+0 .84 4.5                   HLID
 BOZ  eP      04:53:56.18  -0.4   64.1 335                                   BOZ 
 DLMT eP      04:53:58.26   0.5   64.3 334 b:8.4+0 1.1 4.7                   DLMT
 WVOR eP      04:54:01.28  -0.2   64.9 329 b:1.4+1 1.3 4.9                   WVOR
 EGMT eP      04:54:04.17  -0.3   65.4 338                                   EGMT
 MOD  eP      04:54:04.59  -0.1   65.4 327                                   MOD 
 MSO  eP      04:54:09.29   0.4   66.1 335                                   MSO 
 YBH  eP      04:54:11.31  -0.9   66.6 326                                   YBH 
 LNOR eP      04:54:16.44   0.0   67.2 331 b:4.9+0 1.1 4.5                   LNOR
 BSMT eP      04:54:16.95   0.5   67.2 335                                   BSMT
 WALA eP      04:54:20.12   0.0   67.8 336                                   WALA
 HAWA eP      04:54:22.84   0.3   68.2 331                                   HAWA
 NEW  eP      04:54:24.42   0.0   68.5 334 b:4.4+0 .72 4.6                   NEW 
 OD2  eP      04:54:25.29   0.5   68.6 332                                   OD2 
 ETW  eP      04:54:30.98   0.5   69.5 332                                   ETW 
 JCW  eP      04:54:37.13  -0.4   70.6 331                                   JCW 
 EDM  eP      04:54:38.36  -1.0   71.0 339                                   EDM 
 FCC  eP      04:54:39.95  -1.1   71.3 352                                   FCC 
 YKA  P       04:55:23.80  -1.3   78.9 344                                   YKA 
 TORD P       04:55:52.72  -0.4   83.9  75                                   TORD
 VNDA P       04:55:55.20   0.2   84.6 191                                   VNDA
 SUMG eP      04:56:13.36   0.3   88.2  11 b:2.2+1 1.2 5.3                   SUMG
 INK  eP      04:56:13.46  -0.8   88.6 342 b:1.1+1 1.0 5.1                   INK 
 EGAK eP      04:56:16.23  -0.8   89.1 338 b:5.9+0 .90 4.9                   EGAK
 RER  ePKPdf  05:02:18.30  -4.8X 125.0 126                                   RER 
 AKTK PKP     05:02:27.02  -0.7  127.9  33                                   AKTK
 ABKARePKPdf  05:02:31.53   0.6  129.6  34                                   ABKA
 ZALV PKP     05:02:42.17  -0.6  136.0  14                                   ZALV
 MKAR PKP     05:02:52.21  -1.3  141.7  21                                   MKAR
 ULN  ePKPdf  05:02:53.88  -3.1X 143.6 353                                   ULN 
 SONM PKP     05:02:53.94  -3.2X 143.7 354                                   SONM



 Generated 2008 APR  6 at 03:16 UTC

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


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