Link to USGS home page.
Earthquake Hazards Program
Phase Data

Explanation of Parameters


     13 JUL 2007  (194)

     ot  = 19:19:56.64   +/-   3.74              BABUYAN ISL REGION, PHILIPPINES 
     lat =      19.679   +/-    5.9
     lon =     121.294   +/-    7.4              MAGNITUDE 4.5 (GS)       
     dep =        16.9   +/-   24.4   

     110 km (70 miles) SW of Basco, Batan Islands, Philippines (pop N/A)
     175 km (110 miles) NNE of Laoag, Luzon, Philippines
     560 km (350 miles) N of MANILA, Philippines
     600 km (370 miles) S of T'AI-PEI, Taiwan

     nph =   26 of  28    se = 0.86    FE=248                            B   

     error ellipse = ( 27.3, 81.9, 37.9;250.2,  5.9, 11.6;159.7,  5.4,  7.1)

 mb = 4.5 ( 18)  ML = 0.0 (  0)  mblg = 3.5 (  3)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 NACB ePn     19:21:02.52  -1.4    4.5   3                                   NACB
 YHNB ePn     19:21:11.17   0.6    5.0   1                                   YHNB
 TATO ePn     19:21:16.07   1.4    5.3   2                                   TATO
 QIZ  ePn     19:22:30.41  -0.6   10.8 268 g:1.7-2 .85 3.3  b:9.0+0 .50 5.3X QIZ 
      eSn     19:24:23.01  S res =  -8.9X
 BJT  eP      19:24:35.37  -1.1   20.7 349 g:2.5-2 .65 4.1  b:2.5+1 .65 4.7  BJT 
 GUMO qP      19:25:05.57   0.8   23.4 101 b:1.1+2 1.0 5.3                   GUMO
 LSA  eP      19:25:57.90   1.0   29.1 296 g:3.3-3 .75 3.4  b:3.3+0 .75 4.2  LSA 
 MBWA eP      19:27:34.76  -1.0   40.6 182 b:2.3+1 1.1 4.8                   MBWA
 WRAB eP      19:27:42.12  -0.1   41.4 161 b:8.2+0 .60 4.6                   WRAB
 WB2  eP      19:27:42.13  -0.2   41.4 161                                   WB2 
 MK31 eP      19:27:44.33  -0.4   41.7 319                                   MK31
 TKM2 qP      19:28:09.22   0.0   44.7 312 b:1.9+0 .74 4.1                   TKM2
 KURK eP      19:28:15.39  -1.0   45.7 323 b:5.0+0 1.1 4.4                   KURK
 UCH  eP      19:28:15.43   1.3   45.3 310 b:4.2+0 1.2 4.2                   UCH 
 EKS2 qP      19:28:18.07  -0.7   45.9 311 b:1.5+1 .63 5.1                   EKS2
 AML  eP      19:28:19.49   0.9   45.9 310 b:4.6+0 1.2 4.3                   AML 
 CTAO eP      19:28:22.28  -0.8   46.5 147 b:6.1+0 .83 4.6                   CTAO
 KBL  eP      19:28:38.09   0.6   48.3 299 b:3.1+0 .50 4.6                   KBL 
 FORT eP      19:28:55.63   1.1   50.6 172 b:3.2+0 .60 4.5                   FORT
 BRVK eP      19:28:59.74  -0.3   51.3 323 b:4.4+0 .85 4.4                   BRVK
 NWAO eP      19:29:08.60   0.1   52.5 184 b:2.9+1 1.3 5.0                   NWAO
      e       19:29:21.23   5.3X
 STKA eP      19:29:26.21   0.3   54.8 159 b:3.6+0 .72 4.5                   STKA
 KIV  eP      19:30:58.77   0.2   68.5 310 b:6.1+0 .65 4.9                   KIV 
 BPAW eP      19:31:15.75  -0.6   71.5  28                                   BPAW
 MALT eP      19:31:24.30   0.7   72.6 305 b:1.8+0 .75 4.2                   MALT
 SUW  qP      19:31:58.43  -0.8   78.9 323                                   SUW 



 Generated 2007 JUL 14 at 17:03 UTC

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

 


FirstGov button  Take Pride in America button