Our Ref.: HKO 220/172/22


                                                                         17 March 2023


Sir/Madam,


                           Preliminary Seismological Analysis


     Enclosed please find the preliminary seismological analysis from October to
December 2022 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 2022

  Date       phase   Component    Time (UTC)    Δ*        Remarks
                                   HHMMSS
Year 2022
  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     Nil
 13 - Oct     P        ENZ          222848              Compr to SW
 14 - Oct     Nil
 15 - Oct     Nil
 16 - Oct     P        ENZ          130801              Compr to SE
 17 - Oct     Nil
 18 - Oct     Nil
 19 - Oct     Nil
 20 - Oct     P        ENZ          121653              Compr to SW
 21 - Oct     Nil
 22 - Oct     Nil
 23 - Oct     Nil
 24 - Oct     Nil
 25 - Oct     P        ENZ          150052              Compr to SE
 26 - Oct     Nil
 27 - Oct     Nil
 28 - Oct     Nil
 29 - Oct     Nil
 30 - Oct     Nil
 31 - Oct     Nil
     Preliminary Analysis of the Seismograph at HKPS for Nov 2022

  Date      phase   Component    Time (UTC)    Δ*        Remarks
                                  HHMMSS
Year 2022
 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         203336              Compr to NE
 9 - Nov     P         ENZ         094942              Compr to SE
             P         ENZ         100201              Compr to SE
 10 - Nov    Nil
 11 - Nov    P         ENZ         110110              Compr to NW
 12 - Nov    P         ENZ         072015              Compr to SE
 13 - Nov    Nil
 14 - Nov    P         ENZ         051510              Compr to NE
             P         ENZ         081305              Compr to NE
 15 - Nov    Nil
 16 - Nov    Nil
 17 - Nov    Nil
 18 - Nov    P         ENZ         134317              Compr to NE
 19 - Nov    Nil
 20 - Nov    Nil
 21 - Nov    Nil
 22 - Nov    P         ENZ         021239              Compr to NW
 23 - Nov    Nil
 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 2022

  Date      phase   Component    Time (UTC)    Δ*        Remarks
                                  HHMMSS
Year 2022
  1 - Dec    Nil
  2 - Dec    Nil
  3 - Dec    Nil
  4 - Dec    P         ENZ         193625              Compr to NE
  5 - Dec    Nil
  6 - Dec    Nil
  7 - Dec    Nil
  8 - Dec    Nil
  9 - Dec    P         ENZ         200622              Compr to SE
 10 - Dec    Nil
 11 - Dec    Nil
 12 - Dec    Nil
 13 - Dec    Nil
 14 - Dec    P         ENZ         185007              Compr to SE
 15 - Dec    P         ENZ         040504              Compr to NW
 16 - Dec    Nil
 17 - Dec    Nil
 18 - Dec    Nil
 19 - Dec    Nil
 20 - Dec    P         ENZ         170304              Compr to NE
 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