﻿*4 
  

  

  OLDHA-M 
  : 
  GREAT 
  EARTHQUAKE 
  OF 
  1 
  897. 
  

  

  Pawlowsk 
  (St. 
  Petersburg). 
  — 
  According 
  to 
  Dr. 
  Agamennone 
  1 
  the 
  

   horizontal 
  force 
  instrument 
  at 
  this 
  observatory 
  was 
  disturbed 
  at 
  1 
  ih. 
  

   17m. 
  the 
  disturbance 
  reaching 
  its 
  maximum 
  at 
  iih. 
  22m., 
  and 
  ending 
  

   at 
  1 
  ih. 
  25m., 
  but 
  the 
  trace 
  is 
  again 
  disturbed 
  from 
  nh. 
  39m,, 
  to 
  iih. 
  

   42m. 
  though 
  in 
  a 
  less 
  degree. 
  The 
  declination 
  instrument 
  trace 
  was 
  

   affected 
  at 
  the 
  same 
  time, 
  but 
  not 
  so 
  distinctly. 
  

  

  Paris, 
  Pare, 
  St. 
  Maur. 
  — 
  According 
  to 
  the 
  Bulletin 
  du 
  Bureau 
  

   central 
  there 
  was 
  a 
  slight 
  disturbance 
  of 
  the 
  curves 
  of 
  the 
  horizontal 
  

   force 
  and 
  declination 
  instruments 
  at 
  nh. 
  27m. 
  40s. 
  2 
  

  

  Utrecht. 
  — 
  The 
  disturbance 
  of 
  the 
  declination 
  instrument 
  com- 
  

   menced 
  at 
  nh. 
  i8'5m., 
  and 
  ended 
  at 
  i2h. 
  38m. 
  

  

  The 
  horizontal 
  force 
  instrument 
  was 
  not 
  disturbed 
  till 
  about 
  uh 
  = 
  

   36*5111., 
  the 
  disturbance 
  lasted 
  till 
  13b. 
  47m. 
  

  

  Tabulating 
  the 
  times 
  given, 
  for 
  convenience 
  of 
  comparison, 
  we 
  

   have 
  the 
  following 
  :— 
  

  

  

  Horizontal 
  force. 
  

  

  Declination. 
  

  

  Vertical 
  force. 
  

  

  

  Comm. 
  

  

  Max. 
  

  

  End. 
  

  

  Comm. 
  

  

  Max. 
  

  

  End. 
  

  

  Comm. 
  

  

  Max. 
  

  

  End, 
  

  

  

  h. 
  m. 
  

  

  h. 
  m. 
  

  

  h. 
  m. 
  

  

  h. 
  m. 
  

  

  h. 
  m. 
  

  

  h. 
  m. 
  

  

  h: 
  m. 
  

  

  h. 
  m. 
  

  

  h. 
  m. 
  

  

  Bombay 
  

  

  11 
  11 
  

  

  ? 
  

  

  11 
  45 
  

  

  11 
  13 
  

  

  11 
  16 
  

  

  11 
  42 
  

  

  11 
  15 
  

  

  n 
  17 
  

  

  11 
  23 
  

  

  Batavia 
  

  

  11 
  24 
  

  

  p 
  

  

  11 
  55 
  

  

  11 
  22 
  

  

  p 
  

  

  11 
  32 
  

  

  11 
  23 
  

  

  ? 
  

  

  11 
  43 
  

  

  Potsdam 
  

  

  p 
  

  

  " 
  49 
  

  

  13 
  42 
  

  

  11 
  19 
  

  

  p 
  

  

  12 
  40 
  

  

  n 
  18 
  

  

  p 
  

  

  12 
  28 
  

  

  VV 
  i 
  1 
  helms- 
  

   haven. 
  

  

  Utrecht 
  

  

  11 
  19 
  

   1136*5 
  

  

  p 
  

  

  12 
  40 
  

  

  13 
  47 
  

  

  11 
  19*5 
  

   n 
  18 
  5 
  

  

  H 
  50*5 
  

  

  13 
  28 
  

   12 
  38 
  

  

  11 
  26-5 
  

  

  p 
  

  

  p 
  

  

  Copenhagen 
  

  

  n 
  16*5 
  

  

  11 
  36 
  

  

  n 
  51*5 
  

  

  11 
  25*5 
  

  

  11 
  36 
  

  

  1156*5 
  

  

  ... 
  

  

  11 
  47 
  

  

  ... 
  

  

  Paris 
  . 
  

  

  ... 
  

  

  ... 
  

  

  ... 
  

  

  ... 
  

  

  1127*5 
  

  

  •■• 
  

  

  ... 
  

  

  ... 
  

  

  ... 
  

  

  Pawlowsk 
  . 
  

  

  11 
  17 
  

  

  II 
  22 
  

  

  11 
  42 
  

  

  ... 
  

  

  ... 
  

  

  ... 
  

  

  ... 
  

  

  ... 
  

  

  ... 
  

  

  From 
  this 
  table 
  it 
  is 
  easily 
  seen 
  that 
  the 
  magnetographs 
  cannot 
  

   be 
  depended 
  on 
  for 
  accurate 
  or 
  concordant 
  times 
  of 
  arrival 
  of 
  the 
  

  

  1 
  Boll. 
  Soc. 
  Sismol. 
  Hal. 
  Ill, 
  pt. 
  ii, 
  p. 
  290 
  (1897). 
  

  

  2 
  Quoted 
  in 
  Cosmos, 
  XLVI, 
  652 
  (1897). 
  

  

  ( 
  244 
  ) 
  

  

  