Our Ref.: HKO 220/172/22


                                                                    11 June, 2012


Sir/Madam,


                       Preliminary Seismological Analysis


         Enclosed please find the preliminary seismological analysis from January
to March 2012 for the station HKPS. Please note that Broadband records include all
3 components.




                                                     Yours faithfully,




                                                       ( Mr. D.S. Lau )
                                        for Director of the Hong Kong Observatory
            Preliminary Analysis of the Seismograph at HKPS for Jan 2012

  Date      Phase     Component    Time (UTC)       ??             Remarks
                                    HHMMSS
Year 2012
  1-Jan       P          ENZ          053237                Compr to NE
  2-Jan       Nil
  3-Jan       Nil
  4-Jan       Nil
  5-Jan       Nil
  6-Jan       Nil
  7-Jan       Nil
  8-Jan       Nil
  9-Jan       P          ENZ          041720                Compr to NW
 10-Jan       P          ENZ          184256                Compr to NE
 11-Jan       Nil
 12-Jan       Nil
 13-Jan       Nil
 14-Jan       Nil
 15-Jan       Nil
 16-Jan       Nil
 17-Jan       Nil
 18-Jan       Nil
 19-Jan       Nil
 20-Jan       Nil
 21-Jan       Nil
 22-Jan       Nil
 23-Jan       Nil
 24-Jan       P          ENZ          010306                Compr to SE
 25-Jan       Nil
 26-Jan       Nil
 27-Jan       Nil
 28-Jan       Nil
 29-Jan       Nil
 30-Jan       Nil
 31-Jan       Nil
            Preliminary Analysis of the Seismograph at HKPS for Feb 2012

  Date      Phase     Component    Time (UTC)       ??             Remarks
                                    HHMMSS
Year 2012
  1-Feb       Nil
  2-Feb       P          ENZ          134523                Compr to SE
  3-Feb       P          ENZ          035700                Compr to NE
  4-Feb       P          ENZ          131259                Compr to SE
  5-Feb       P          ENZ          165125                Compr to NW
  6-Feb       P          ENZ          035247                Compr to NW
              P          ENZ          101354                Compr to SE
              P          ENZ          113711                Compr to SE
  7-Feb       Nil
  8-Feb       Nil
  9-Feb       Nil
 10-Feb       P          ENZ          015830                Compr to SE
 11-Feb       Nil
 12-Feb       Nil
 13-Feb       Nil
 14-Feb       Nil
 15-Feb       Nil
 16-Feb       Nil
 17-Feb       Nil
 18-Feb       Nil
 19-Feb       Nil
 20-Feb       Nil
 21-Feb       Nil
 22-Feb       Nil
 23-Feb       Nil
 24-Feb       Nil
 25-Feb       Nil
 26-Feb       P          ENZ          023630                Compr to SE
              P          ENZ          062351                Compr to SE
 27-Feb       Nil
 28-Feb       Nil
 29-Feb       Nil
            Preliminary Analysis of the Seismograph at HKPS for Mar 2012

  Date      Phase     Component    Time (UTC)       ??              Remarks
                                    HHMMSS
Year 2012
  1-Mar       Nil
  2-Mar       Nil
  3-Mar       P          ENZ          123111               Compr to NW
  4-Mar       Nil
  5-Mar       Nil
  6-Mar       Nil
  7-Mar       Nil
  8-Mar       P          ENZ          225639               Compr to SE
  9-Mar       P          ENZ          072055               Compr to SW
 10-Mar       Nil
 11-Mar       Nil
 12-Mar       Nil
 13-Mar       Nil
 14-Mar       P          ENZ          091506               Compr to NE
 15-Mar       Nil
 16-Mar       P          ENZ          080154               Compr to NW
 17-Mar       Nil
 18-Mar       Nil
 19-Mar       Nil
 20-Mar       P          ENZ          180318               Compr to SE
              P          ENZ          182411               Compr to SW
 21-Mar       P          ENZ          222249               Compr to SE
 22-Mar       Nil
 23-Mar       Nil
 24-Mar       Nil
 25-Mar       P           Z           225718               Dilate
 26-Mar       Nil
 27-Mar       Nil
 28-Mar       Nil
 29-Mar       Nil
 30-Mar       Nil
 31-Mar       Nil