﻿140 
  Oldham 
  : 
  great 
  earthquake 
  of 
  1897. 
  

  

  bed 
  and 
  runs 
  for 
  a 
  short 
  distance 
  close 
  to, 
  but 
  west 
  of, 
  the 
  river 
  

   before 
  it 
  enters 
  a 
  broad 
  sheet 
  of 
  water. 
  This 
  pool, 
  whose 
  recent 
  

   origin 
  is 
  shown 
  by 
  the 
  number 
  of 
  dead 
  trees 
  and 
  bamboo 
  clumps 
  

   standing 
  in 
  the 
  water, 
  has 
  a 
  maximum 
  depth 
  of 
  18 
  feet 
  ; 
  it 
  covers 
  the 
  

   course 
  of 
  the 
  fault, 
  but 
  the 
  inequality-of 
  ground 
  level 
  could 
  be 
  traced, 
  

   by 
  sounding, 
  for 
  some 
  distance 
  into 
  the 
  pool. 
  About 
  quarter 
  of 
  a 
  

   mile 
  from 
  where 
  it 
  enters 
  the 
  pool, 
  the 
  fault 
  leaves 
  it 
  once 
  more, 
  and 
  

   here 
  the 
  throw 
  has 
  been 
  reduced 
  to 
  almost 
  nothing. 
  Following 
  the 
  

   line 
  of 
  fault, 
  it 
  is 
  found 
  to 
  increase 
  in 
  throw 
  and 
  to 
  form 
  a 
  large 
  pool 
  

   by 
  interrupting 
  the 
  drainage 
  of 
  a 
  tributary 
  valley. 
  The 
  throw 
  

   increases, 
  in 
  about 
  quarter 
  of 
  a 
  mile, 
  from 
  nothing 
  to 
  25 
  feet 
  and 
  

   a 
  short 
  way 
  on, 
  where 
  the 
  fault 
  rises 
  up 
  on 
  to 
  the 
  hillside, 
  to 
  31 
  feet. 
  

   Returning 
  to 
  the 
  pool 
  mentioned 
  above, 
  through 
  which 
  the 
  fault 
  

   runs, 
  it 
  has 
  a 
  length 
  of 
  fully 
  half 
  a 
  mile 
  and 
  a 
  breadth 
  of 
  between 
  

   300 
  and 
  400 
  yards. 
  The 
  noteworthy 
  point 
  about 
  it, 
  however, 
  is 
  

   that 
  it 
  differs 
  from 
  the 
  other 
  pools 
  noticed 
  as 
  yet, 
  in 
  the 
  fact 
  that 
  its 
  

   barrier 
  is 
  not 
  directly 
  formed 
  by 
  the 
  fault. 
  The 
  pool 
  spreads 
  across 
  

   the 
  fault, 
  and 
  its 
  outlet 
  in 
  the 
  old 
  channel 
  of 
  the 
  Chedrang 
  lies 
  to 
  the 
  

   east 
  of 
  the 
  fault 
  line. 
  At 
  the 
  outlet 
  there 
  is 
  nothing 
  in 
  the 
  shape 
  of 
  

   a 
  barrier 
  visible, 
  the 
  channel 
  of 
  the 
  stream 
  merely 
  gets 
  deeper 
  in 
  an 
  

   upstream 
  direction, 
  and 
  its 
  bed 
  sinks 
  gradually, 
  with 
  no 
  sudden 
  

   change, 
  under 
  the 
  waters 
  of 
  the 
  lake. 
  In 
  other 
  words, 
  the 
  natural 
  

   slope 
  of 
  the 
  channel 
  has 
  been 
  reversed 
  and 
  a 
  depression 
  formed 
  in 
  

   which 
  the 
  water 
  accummulated. 
  Now, 
  if 
  we 
  return 
  to 
  a 
  consideration 
  

   of 
  the 
  fault, 
  we 
  see 
  that 
  the 
  maximum 
  width 
  and 
  depth 
  of 
  this 
  

   pool 
  is 
  where 
  the 
  fault 
  has 
  no 
  throw, 
  while 
  the 
  barrier 
  corresponds 
  to 
  

   a 
  part 
  of 
  the 
  fault 
  where 
  the 
  throw 
  is 
  rapidly 
  increasing. 
  Hence, 
  we 
  

   see 
  that 
  this 
  pool, 
  or 
  lake, 
  is 
  not 
  directly 
  due 
  to 
  the 
  fault 
  itself, 
  but 
  to 
  

   the 
  formation 
  of 
  a 
  roll 
  or 
  undulation 
  in 
  the 
  surface 
  of 
  the 
  ground 
  to 
  

   the 
  east 
  of, 
  and 
  corresponding 
  in 
  position 
  with, 
  an 
  increase 
  in 
  the 
  

   throw, 
  of 
  the 
  fault. 
  

  

  Returning 
  once 
  more 
  to 
  the 
  place 
  where 
  the 
  throw 
  of 
  the 
  fault 
  

   was 
  31 
  feet, 
  and 
  where, 
  having 
  temporarily 
  left 
  the 
  valley, 
  it 
  was 
  

   running 
  up 
  the 
  side 
  of 
  a 
  spur. 
  The 
  spot 
  is 
  close 
  to, 
  but 
  a 
  few 
  

   ( 
  Mo 
  ) 
  

  

  