CHAPTER TV. 
THE AREA ENCLOSED BY ISOSEIST No. 4. 
The area enclosed by isoseist No. 4 comprises the area where 
furniture and ornaments were overturned, but little or no damage 
was done to sound brick or stone buildings. The only places of 
any importance included in this area are Comilla, Mymensingh, 
Netrakona, and Cherrapimji. The remainder of the area con- 
sisting of swampy rice-fields and small villages. At Comilla orna- 
ments were overturned and a certain amount of damage was done 
to old and weak houses, sometimes as a result of the earthquake 
waves, but more frequently as a result of the subsidence of the 
water-logged alluvial soil on which they are built. The principal 
buildings damaged and cracked were : — the Post Office, the Collec- 
tor's bungalow, the District Judge's bungalow, the Bar Library, 
the New Zealand Church Mission quarters, the Brahma Mandii 
and several Hindu temples. 
At Mymensingh ornaments were overturned and a cow in the 
Collector's compound was thrown off its feet. A number of old 
and weak buildings and walls in the town were cracked and in places 
thrown down. 'The old Brahmaputra railway bridge was unharmed. 
At Netrakona, the damage was almost entirely due to the sub- 
sidence, in places, of the water-logged alluvium on which the town 
is built. The bungalows of the Sub-divisional Officer and of the 
Police Officer and the Court buildings were cracked owing to sub- 
sidence of the ground, and much sand and water were ejected from 
cracks in their neighbourhood. Part of the Dak Bungalow sank a 
few inches and the Dak Bungalow well broke away from its platform 
and sank eight inches. Many of the wells in the town filled up with 
sand and water and overflowed. The Railway station clock stopped 
at 15 hours .53 minutes. 
At Cherrapunji ornaments and pictures fell. Mrs. Jones sent 
the following information from the Mission House Cherrapunji : — 
" In our house pictures and ornaments fell. Of a number of orna- 
ments standing on a shelf, some fell while others, not apparently 
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