﻿IS0SE1STS 
  AND 
  SEISMIC 
  AREA. 
  43 
  

  

  2. 
  The 
  second, 
  those 
  places 
  where 
  damage 
  to 
  masonry 
  or 
  brick 
  

   buildings 
  was 
  universal, 
  often 
  serious, 
  amounting 
  in 
  some 
  cases 
  to 
  

   destruction, 
  

  

  3. 
  The 
  third, 
  those 
  places 
  where 
  the 
  earthquake 
  was 
  violent 
  

   enough 
  to 
  damage 
  all 
  or 
  nearly 
  all 
  brick 
  buildings. 
  

  

  4. 
  The 
  fourth, 
  those 
  places 
  where 
  the 
  earthquake 
  was 
  universally 
  

   felt, 
  severe 
  enough 
  to 
  disturb 
  furniture 
  and 
  loose 
  objects, 
  but 
  not 
  

   severe 
  enough 
  to 
  cause 
  damage, 
  except 
  in 
  a 
  few 
  instances, 
  to 
  brick 
  

   buildings. 
  

  

  5. 
  The 
  fifth, 
  those 
  places 
  where 
  the 
  earthquake 
  was 
  smart 
  

   enough 
  to 
  be 
  generally 
  noticed, 
  but 
  not 
  severe 
  enough 
  to 
  cause 
  any 
  

   damage. 
  

  

  6. 
  The 
  sixth, 
  all 
  those 
  places 
  where 
  the 
  earthquake 
  was 
  only 
  

   noticed 
  by 
  a 
  small 
  proportion 
  of 
  people 
  who 
  happened 
  to 
  be 
  sensi- 
  

   tive, 
  and 
  being 
  seated 
  or 
  lying 
  down 
  were 
  favourably 
  situated 
  for 
  

   observing 
  it. 
  

  

  This 
  scale 
  does 
  not 
  pretend 
  to 
  scientific 
  accuracy, 
  nor 
  are 
  the 
  

  

  differences 
  between 
  the 
  successive 
  isoseists 
  by 
  any 
  means 
  uniform 
  ; 
  

  

  all 
  that 
  can 
  be 
  said 
  in 
  its 
  favour 
  is 
  that 
  it 
  is 
  the 
  best 
  which 
  the 
  

  

  materials 
  available 
  allow 
  of 
  being 
  used. 
  As 
  compared 
  with 
  the 
  

  

  Rossi-Forel 
  scale 
  it 
  may 
  be 
  said 
  that, 
  roughly 
  speaking, 
  the 
  isoseist 
  

  

  number 
  

  

  No. 
  1 
  includes 
  degree 
  10 
  of 
  the 
  Rossi- 
  Forel 
  scale 
  

  

  »l 
  

  

  2 
  

  

  >» 
  

  

  t, 
  9 
  

  

  »» 
  

  

  3 
  

  

  V 
  

  

  i> 
  8 
  , 
  

  

  it 
  

  

  4 
  

  

  ft 
  

  

  „ 
  6 
  and 
  7 
  

  

  » 
  

  

  5 
  

  

  it 
  . 
  

  

  t, 
  4 
  ar| 
  d 
  5 
  $t 
  

  

  >» 
  

  

  6 
  

  

  ft 
  

  

  ,> 
  2 
  to 
  3 
  

  

  To 
  those 
  who 
  were 
  in 
  the 
  area 
  affected 
  by 
  the 
  earthquake 
  a 
  

   better 
  idea 
  of 
  the 
  scale 
  may 
  be 
  given 
  by 
  the 
  quotation 
  of 
  specific 
  

   instances 
  of 
  each 
  degree. 
  The 
  first 
  isoseist 
  includes 
  all 
  such 
  

   places 
  as 
  Shillong 
  and 
  Goalpara, 
  where 
  destruction 
  was 
  universal 
  ; 
  

   the 
  isoseist 
  runs 
  near 
  Rangpur 
  and 
  Kuch 
  Bihar. 
  No. 
  2 
  would 
  

   include 
  Murshidabad, 
  Malda, 
  Darjiling 
  j 
  No. 
  3, 
  Bhagalpur, 
  Krish- 
  

   nagar 
  and 
  Calcutta. 
  Beyond 
  this, 
  No. 
  4 
  would 
  include 
  western 
  

  

  (43) 
  

  

  