FORESHOCKS AND AFTERSHOCKS. 365 



On January 24th, 1906, the ordinary record of aftershocks from the 

 Kulu and Simla areas was interrupted by a sharp shock felt at Lahore, 

 which made many people rush out of their houses, and was preceded 

 by a prolonged rumble. This shock was not recorded elsewhere and 

 must have been local. On January 29th, Shahpur (Kangra District), 

 Simla, and Holta (Palampur) recorded a shock about the same time. 

 February 2nd is remarkable for the 3 or 4 shocks recorded by the two 

 seismographs in Simla, but on February 28th we are introduced to an 

 aftershock with its probable centre in the Simla Hill Tracts or Kulu 

 that by itself would rank as a very respectable earthquake. 



It was felt strongly over most of the meizoseismal area of the earth- 

 quake of 4th April, and was even recorded from 

 Bashahr aftershock, .. , __ . ^ 



or secondary earth- Jai P ur as wel1 as from Montgomery, Agra, Dera 

 quake, of February Ismail Khan and Cherat. I am indebted to Mr. 

 28th, 1906. Calvert, Assistant Commissioner of Kulu, for details 



experienced by himself in the neighbourhood of »the epicentral area. 

 He was at Larji in Kulu at the time, and about 1 a.m. he felt a 

 strong prolonged shock lasting about 1 minute. So far as he could 

 recollect it was the worst shock since April 4th, though some people 

 think the shock of 28th June was as bad. The great shock was 

 followed by several smaller ones which he noticed until he fell asleep. 

 Later in the day he went to Banjar (midway between Manglaur and 

 Jibhi) and found there that the shocks were occurring on an average 

 of 5 an hour, and continued throughout the 28th. Some were mere 

 rumbles and others sharp shocks. Next day, 1st March, they occurred 

 at the rate of about 2 per hour. At Bajaura on the same day he 

 found these shocks were not noticeable, but on returning on the 2nd 

 March to Banjar he found them still continuing at the average rate of 

 about 1 per hour, and they were still continuing on the 3rd. 



From the above, and from numerous telegrams appearing in the 

 newspapers, all of which together with other information officially 

 supplied are summarised in the list under the date 28th February, it 

 is clear that this destructive aftershock was the worst that had occur- 

 red up to date, and in a restricted sense might be regarded as a separ- 



