Our Ref.: HKO 220/172/22


                                                                              19 May 2020


Sir/Madam,


                           Preliminary Seismological Analysis


     Enclosed please find the preliminary seismological analysis from October to
December 2019 for the station HKPS. Please note that Broadband records include all 3
components.




                                                          Yours faithfully,




                                                           ( Mr. T.W. Hui )
                                             for Director of the Hong Kong Observatory
      Preliminary Analysis of the Seismograph at HKPS for Oct 2019

  Date       phase   Component    Time (UTC)    Δ*        Remarks
                                   HHMMSS
Year 2019
  1 - Oct     Nil
  2 - Oct     Nil
  3 - Oct     Nil
  4 - Oct     Nil
  5 - Oct     Nil
  6 - Oct     Nil
  7 - Oct     Nil
  8 - Oct     Nil
  9 - Oct     Nil
 10 - Oct     Nil
 11 - Oct     Nil
 12 - Oct     P        ENZ          145618              Compr to NE
 13 - Oct     Nil
 14 - Oct     Nil
 15 - Oct     Nil
 16 - Oct     P        ENZ          114124              Compr to NW
 17 - Oct     Nil
 18 - Oct     Nil
 19 - Oct     Nil
 20 - Oct     Nil
 21 - Oct     P        ENZ          030305              Compr to NW
 22 - Oct     Nil
 23 - Oct     Nil
 24 - Oct     Nil
 25 - Oct     Nil
 26 - Oct     Nil
 27 - Oct     Nil
 28 - Oct     Nil
 29 - Oct     P        ENZ          010903              Compr to SE
 30 - Oct     Nil
 31 - Oct     P        ENZ          011537              Compr to NW
     Preliminary Analysis of the Seismograph at HKPS for Nov 2019

  Date      phase   Component    Time (UTC)    Δ*        Remarks
                                  HHMMSS
Year 2019
  1 - Nov    Nil
  2 - Nov    Nil
  3 - Nov    Nil
  4 - Nov    Nil
  5 - Nov    Nil
  6 - Nov    Nil
  7 - Nov    Nil
  8 - Nov    P         ENZ         105547              Compr to SE
  9 - Nov    Nil
 10 - Nov    Nil
 11 - Nov    Nil
 12 - Nov    Nil
 13 - Nov    Nil
 14 - Nov    P         ENZ         162250              Compr to SE
             P         ENZ         185051              Compr to SW
             P         ENZ         211806              Compr to SE
 15 - Nov    Nil
 16 - Nov    P         ENZ         102427              Compr to SE
 17 - Nov    Nil
 18 - Nov    P         ENZ         132622              Compr to SE
 19 - Nov    Nil
 20 - Nov    Nil
 21 - Nov    Nil
 22 - Nov    Nil
 23 - Nov    P         ENZ         121702              Compr to SE
 24 - Nov    Nil
 25 - Nov    Nil
 26 - Nov    Nil
 27 - Nov    Nil
 28 - Nov    Nil
 29 - Nov    Nil
 30 - Nov    Nil
     Preliminary Analysis of the Seismograph at HKPS for Dec 2019

  Date      phase   Component    Time (UTC)    Δ*        Remarks
                                  HHMMSS
Year 2019
  1 - Dec    Nil
  2 - Dec    Nil
  3 - Dec    Nil
  4 - Dec    Nil
  5 - Dec    P         ENZ         042156              Compr to NE
  6 - Dec    Nil
  7 - Dec    Nil
  8 - Dec    Nil
  9 - Dec    Nil
 10 - Dec    P         ENZ         171036              Compr to SW
 11 - Dec    Nil
 12 - Dec    Nil
 13 - Dec    Nil
 14 - Dec    Nil
 15 - Dec    P         ENZ         061610              Compr to SE
 16 - Dec    Nil
 17 - Dec    Nil
 18 - Dec    Nil
 19 - Dec    Nil
 20 - Dec    P         ENZ         114710              Compr to NW
 21 - Dec    Nil
 22 - Dec    Nil
 23 - Dec    Nil
 24 - Dec    Nil
 25 - Dec    Nil
 26 - Dec    Nil
 27 - Dec    Nil
 28 - Dec    Nil
 29 - Dec    Nil
 30 - Dec    Nil
 31 - Dec    Nil