Our Ref.: HKO 220/172/22


                                                                       10 September 2018


Sir/Madam,


                           Preliminary Seismological Analysis


        Enclosed please find the preliminary seismological analysis from April to June 2018
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 Apr 2018

  Date       phase   Component    Time (UTC)    Δ*        Remarks
                                   HHMMSS
Year 2018
  1 - Apr     Nil
  2 - Apr     Nil
  3 - Apr     Nil
  4 - Apr     Nil
  5 - Apr     P        ENZ          091904              Compr to SE
              P        ENZ          035806              Compr to NW
 6 - Apr      Nil
 7 - Apr      Nil
 8 - Apr      Nil
 9 - Apr      Nil
 10 - Apr     Nil
 11 - Apr     Nil
 12 - Apr     Nil
 13 - Apr     Nil
 14 - Apr     Nil
 15 - Apr     P        ENZ          193556              Compr to NW
 16 - Apr     Nil
 17 - Apr     Nil
 18 - Apr     Nil
 19 - Apr     Nil
 20 - Apr     Nil
 21 - Apr     Nil
 22 - Apr     Nil
 23 - Apr     Nil
 24 - Apr     Nil
 25 - Apr     Nil
 26 - Apr     Nil
 27 - Apr     Nil
 28 - Apr     Nil
 29 - Apr     Nil
 30 - Apr     Nil
     Preliminary Analysis of the Seismograph at HKPS for May 2018

  Date      phase   Component    Time (UTC)    Δ*        Remarks
                                  HHMMSS
Year 2018
  1 - May    Nil
  2 - May    Nil
  3 - May    Nil
  4 - May    Nil
  5 - May    P         ENZ         062158              Compr to NW
  6 - May    Nil
  7 - May    Nil
  8 - May    Nil
  9 - May    Nil
 10 - May    P         ENZ         120048              Compr to NW
 11 - May    Nil
 12 - May    Nil
 13 - May    Nil
 14 - May    Nil
 15 - May    Nil
 16 - May    Nil
 17 - May    Nil
 18 - May    P         ENZ         015810              Compr to SW
 19 - May    Nil
 20 - May    Nil
 21 - May    Nil
 22 - May    Nil
 23 - May    Nil
 24 - May    Nil
 25 - May    Nil
 26 - May    Nil
 27 - May    Nil
 28 - May    Nil
 29 - May    Nil
 30 - May    Nil
 31 - May    Nil
     Preliminary Analysis of the Seismograph at HKPS for Jun 2018

  Date      phase   Component    Time (UTC)    Δ*        Remarks
                                  HHMMSS
Year 2018
 1 - Jun     Nil
 2 - Jun     Nil
 3 - Jun     Nil
 4 - Jun     Nil
 5 - Jun     Nil
 6 - Jun     Nil
 7 - Jun     Nil
 8 - Jun     Nil
 9 - Jun     Nil
 10 - Jun    Nil
 11 - Jun    Nil
 12 - Jun    Nil
 13 - Jun    Nil
 14 - Jun    Nil
 15 - Jun    Nil
 16 - Jun    Nil
 17 - Jun    Nil
 18 - Jun    Nil
 19 - Jun    Nil
 20 - Jun    Nil
 21 - Jun    P        ENZ          212418              Compr to NW
 22 - Jun    Nil
 23 - Jun    Nil
 24 - Jun    Nil
 25 - Jun    Nil
 26 - Jun    Nil
 27 - Jun    Nil
 28 - Jun    Nil
 29 - Jun    Nil
 30 - Jun    Nil